Ce capteur de température est formé d’une tige en acier inoxydable qui peut être trempée dans des liquides organiques, des solutions acides ou basiques. Il est formé d’une thermistance et peut mesurer des températures de -40°C à 135°C Gamme de mesures :-40°C à 135°C Précision : ± 0,2°C à 0°C, ± 0,5°C à 100°C Temps de réponse : 90% de la valeur en 10s dans l'eau, en 90s dans l'air agité, en 400s dans l'air calme Résolution avec LabPro, LabQuest : 0.17°C(-40°C à 0°C) 0.03°C(0°C à 40°C) 0.1°C(40°C à 100°C) 0.25°C(100°C à 125°C) Température maximale supportable : 150°C Garantie 5 ans User manual

The Go Direct Force and Acceleration Sensor couples a 3-axis accelerometer with a stable and accurate force sensor that measures forces as small as ±0.1 N and up to ±50 N. Measure pushes and pulls in the classroom or outdoors. It directly connects wirelessly via Bluetooth® or wired via USB to your platform. The Go Direct Force and Acceleration Sensor includes a force sensor, 3-axis accelerometer, and 3-axis gyroscope. Take it on a roller coaster, swing, or slide. Suspend several Go Direct Force and Acceleration Sensors from the ceiling to perform a 3-D vector force experiment, or attach a string to the hook and whirl it in a horizontal or vertical circle. In wireless mode, your imagination is the only limiting factor! Go Direct Force and Acceleration can be used in a variety of experiments: Investigate Newton’s Third Law by connecting the hooks of two force sensors with a rubber band. Use the force sensor to pull an object across a surface to measure frictional forces. Attach the force sensor to the Centripetal Force Apparatus to measure centripetal force and acceleration simultaneously. Place sensors on Dynamics Carts to investigate forces and accelerations in collisions. Specifications: Force: ±50 N Acceleration: 3 axis, ±16 g Gyroscope: 3 axis, 2000°/s Connections: Wireless: Bluetooth Wired: USB Icluded: Go Direct Force and Acceleration Sensor Hook Bumper Nylon screw Accessory rod Micro USB Cable

LabQuest Mini est une interface compacte et puissante, destinée aux utilisateurs qui n'ont pas besoin de l'autonomie d'enregistrement du LabQuest. Elle se branche au port USB d'un ordinateur et se pilote avec le logiciel Logger Pro Elle est directement alimentée par le port USB de l'ordinateur. On peut aussi l'alimenter avec un adaptateur secteur (en option) au cas où le port USB ne fournit pas assez de puissance pour les capteurs branchés.   3 voies analogiques 2 voies numériques Peut faire jusqu'à 100 000 mesures par seconde Convertisseur 12 bits   LabQuest Mini User Guide

La sonde de température Go Direct est un capteur de température robuste et polyvalent que les élèves peuvent utiliser pour surveiller la température. Elle se connecte directement à votre plate-forme, sans fil via Bluetooth® ou par câble via USB. La sonde de température Go Direct, robuste et polyvalente, offre aux étudiants l'avantage d'une connectivité qui leur permet d'aller partout et de travailler partout. Comme elle est également étanche, Go Direct Temperature est plus durable que les sondes qui sont simplement résistantes à l'eau. Contrairement à un thermomètre traditionnel, Go Direct Temperature permet aux étudiants de collecter des mesures de température en temps réel pour une seule personne ou sur une période donnée. Sa plage de température et sa capacité sans fil font de Go Direct Temperature le capteur idéal pour les applications du monde réel. La sonde de température Go Direct peut être utilisée dans une grande variété d'expériences : Réaliser des réactions endothermiques et exothermiques. Étudier la congélation et la fonte de l'eau. Mesurer le contenu énergétique des aliments. Examiner l'absorption de l'énergie radiante. Contrôler les conditions environnementales. Spécifications : Plage de température : -40 à 125°C Plage de température de la poignée : -10 à 45°C Précision : ±0,25°C Temps de réponse (temps pour 90% de la lecture) : 20 secondes (dans l'eau, avec agitation) Connexions : Sans fil : Bluetooth Avec fil : USB Inclus : Go Direct Capteur de température Câble micro USB Guide de démarrage rapide

The Go Direct pH Sensor is a general-purpose pH sensor used to monitor pH of aqueous solutions. It directly connects wirelessly via Bluetooth® or wired via USB to your platform. The Go Direct pH Sensor is an important and versatile sensor for lab and field activities alike. It gives students the freedom to explore pH without the inconvenience of wires—no more spilled solutions or dangling wires. The Go Direct pH transmits live readings and captures data in real-time. The Go Direct pH Sensor can be used in a variety of experiments: Conduct acid-base titrations. Monitor pH change during chemical reactions. Test the pH and alkalinity of bodies of water. Investigate household acids and bases. This sensor is comprised of a pH electrode connected to a Go Direct Electrode Amplifier via a BNC connector. This design enables you to use the Go Direct Electrode Amplifier with other Vernier electrodes, such as the Flat pH Electrode, ORP Electrode, ISE electrode, or a third-party electrode. Specification: pH range: 0–14 Type: Sealed, gel-filled, epoxy body, Ag/AgCl reference Shaft diameter: 12 mm OD Storage solution: pH-4/KCl solution (10 g KCl in 100 mL buffer pH-4 solution) Connections: Wireless: Bluetooth Wired: USB Included: Go Direct pH (includes Go Direct Electrode Amplifier) Micro USB Cable Quick-start guide 

Le pH-mètre est constitué d’une électrode Ag-AgCl gel et de son amplificateur. Il peut être utilisé pour toutes les expériences de pH-métrie en chimie ou biologie. Il possède de la mémoire pour stocker des étalonnages qui seront automatiquement utilisés par le logiciel. Cela permet d'utiliser un étalonnage propre à chaque capteur sans avoir besoin de réétalonner à chaque utilisation. Un amplificateur d'électrode peut être acheté séparément pour connecter une autre électrode. Electrode AG-AgCl gel Mesure des pH de 0 à 14 Temps de réponse : 90% de la valeur finale en 1 seconde Protection en epoxy sur le corps de l’électrode Fonctionne de 5 à 80°C Résolution avec CBL/CBL2: 0,02 unités pH Résolution avec LabPro, LabQuest: 0,005 unités pH pH isopotentiel : pH 7 (point auquel la température n'a pas d'effet sur la sortie) Sortie : 59.2 mV/pH à 25°C Mémoire pour stocker les étalonnages   Garantie 5 ans

Le spectrophotomètre Go Direct SpectroVis Plus mesure rapidement un spectre de longueur d'onde complète. Il se connecte directement à votre plateforme sans fil via Bluetooth® ou câblé via USB. Initiez vos élèves à la spectroscopie à l'aide du spectrophotomètre Go Direct SpectroVis Plus à prix abordable. Cet appareil, qui peut se connecter sans fil ou par USB, peut facilement recueillir un spectre de longueur d'onde complète (absorbance, pourcentage de transmission ou intensité) en moins d'une seconde. Une fois la longueur d'onde de crête déterminée, vous pouvez établir la concentration d'une solution (loi de Beer) ou surveiller les vitesses des réactions. Le spectrophotomètre Go Direct SpectroVis Plus permet d'utiliser le spectrophotomètre Go Direct SpectroVis Plus pour les laboratoires à petite échelle et les applications biochimiques avec micro et semi-micro cuvettes. Le spectrophotomètre Go Direct SpectroVis Plus peut être utilisé pour diverses expériences de spectroscopie: Déterminer la longueur d'onde de crête pour recueillir des données sur la concentration de la solution en vue d'études de la loi de Beer ou pour surveiller les vitesses de réaction. Recueillir un spectre de longueur d'onde complète pour mesurer l'absorbance, le pourcentage de transmittance, la fluorescence (à 405 nm ou 500 nm d'excitation) ou les émissions. Effectuer des expériences de cinétique enzymatique. Effectuer des études d'équilibre de l'absorbance en fonction du temps ou de l'absorbance en fonction de la concentration. Effectuer des bioessais colorimétriques ou fluorescents. Utilisez le spectrophotomètre à fibre optique (VSP-FIBER) pour mesurer les émissions provenant d'essais de flamme ou d'autres sources lumineuses. Pour une analyse plus détaillée des émissions, considérez le spectromètre d'émission Vernier (VSP-EM). Spectroscopie avec Go Direct SpectroVis Plus Pour utiliser le spectrophotomètre Go Direct SpectroVis Plus, téléchargez l'application gratuite Analyse spectrale. L'application est compatible avec les ordinateurs, les Chromebooks et les appareils mobiles. Les élèves peuvent aussi se connecter à LabQuest 2 ou à un ordinateur avec Logger Pro pour effectuer des analyses. Spécifications Gamme de longueurs d'onde: 380 nm-950 nm Support pour la fluorescence: Deux sources d'excitation centrées à 405 nm et 500 nm Intervalle de longueur d'onde signalé: ~1 nm entre les valeurs signalées (collecte de 570 valeurs) Dimensions: 16 cm x 10 cm x 5 cm Sources lumineuses: Ampoule blanche à incandescence, durée de vie d'environ 8 000 heures, étalonnage en une seule étape. À DEL, durée de vie d'environ 100 000 heures. Aucune alimentation extérieure n'est requise.

The Go Direct Gas Pressure Sensor measures the absolute pressure of a gas. It directly connects wirelessly via Bluetooth® or wired via USB to your platform. Use Go Direct Gas Pressure Sensor to monitor gas pressure in a variety of experiments. It records accurate absolute pressure readings relative to the perfect vacuum reference point inside the sensor, allowing you to go below atmospheric pressure or up to 400 kPa. Easily change the displayed units to any one of seven options (kPa, mmHg, inHg, mbar, psi, atm, torr). Includes a syringe, tubing, and stoppers to ease setup for experiments such as Boyle’s law. The Go Direct Gas Pressure Sensor can be used in a variety of experiments: Investigate Boyle’s law and Charles’ law. Investigate grip strength and muscle fatigue (using Gas Pressure Bulb, not included). Measure the production of oxygen gas produced when hydrogen peroxide is destroyed by the enzyme catalase. Monitor plant transpiration. Specifications: Range: 0 to 400 kPa Resolution: 0.03 kPa Maximum pressure that the sensor can tolerate without permanent damage: 450 kPa Connections: Wireless: Bluetooth Wired: USB Included: Vernier Go Direct Gas Pressure Sensor Tapered valve connectors (2) inserted into a No. 5 stopper Tapered valve connector (1) inserted into a No. 1 stopper Two-way valve 18 inch Tygon tubing with Luer Lock connectors 20 mL syringe White transpiration tubing clamps (2)

Vernier announces LabQuest 3 as breakthrough in data collection for educational institutions! LabQuest works as a stand-alone device or as a computer interface, providing the versatility to excel in the classroom or in the field. The Vernier LabQuest includes built-in software for data collection, graphing, and analysis, and on-board applications such as a periodic table and stopwatch. Use the powerful and intuitive software from the vivid color touch-screen, all packed in a rugged and water-resistant exterior. (Without Temperature-Sensor)

Description Monitor changes in carbon dioxide, temperature, and relative humidity easily with the Go Direct CO2 Gas Sensor. This sensor includes built-in temperature compensation and humidity protection. A 250 mL Nalgene bottle is included for running controlled experiments with small plants and animals.  The Go Direct CO2 Gas Sensor is ideal for the following experiments: Measure the change in gas concentration during cellular respiration. Measure the change in gas concentration during photosynthesis. Study the effect of temperature on cell respiration or metabolism of organisms. Investigate artificial selection in yeast by comparing respiration rates of different strains. Rechargeable Battery—Ready When You Are The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our free Graphical Analysis™ 4 app or LabQuest 2 App. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students. Wired or Wireless—The Flexibility to Choose Our Go Direct sensors connect directly to your mobile device, Chromebook™, or computer using our free Graphical Analysis™ 4 app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth® wireless technology, allowing you to choose the solution best for your classroom or laboratory.

Description Designed to be used as you would use a thermometer for experiments such as the recrystallization of benzoic acid, simple and fractional distillations, determination of boiling points, the synthesis and analysis of aspirin and other organic compounds, and more. Range of –20 to 330°C allows for investigations such as determining the melting point of caffeine or the boiling point of different vegetable oils RTD (Resistance Temperature Detector) technology establishes a ±0.5°C accuracy. Rechargeable Battery—Ready When You Are The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our free Graphical Analysis™ 4 app or LabQuest 2 App. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students. Wired or Wireless—The Flexibility to Choose Our Go Direct sensors connect directly to your mobile device, Chromebook™, or computer using our free Graphical Analysis™ 4 app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth® wireless technology, allowing you to choose the solution best for your classroom or laboratory.  Specifications Range: –20 to 330°C Maximum temperature that the sensor can tolerate without damage: 380°C Temperature detector: Platinum RTD (100 Ohm) Accuracy: ±0.2°C at 100°C Response time (from 25°C to 100°C in water): 30 seconds Probe dimensions: Probe length (handle plus body): 24.5 cm Stainless steel body: Length: 17 cm Diameter: 6.4 mm Probe handle: Length: 6.8 cm Width: 2.25 cm Thickness: 1.3 cm Connections: Wireless: Bluetooth Wired: USB

This is an optical fiber accessory designed exclusively for emission spectrum experiments with Vernier-branded spectrophotometers, including Go Direct® SpectroVis® Plus, Go Direct UV-VIS Spectrophotometer, Go Direct Fluorescence/UV-VIS Spectrophotometer,  Vernier UV-VIS, and Vernier Fluorescence/UV-VIS. It has a wavelength range from 350 nm to 900 nm. For SpectroVis and SpectroVis Plus spectrophotometers, use the SpectroVis Optical Fiber.

Le capteur de gaz Go Direct O2 mesure la concentration d'oxygène gazeux et la température de l'air. Ce capteur a une large plage de mesure, ce qui est idéal pour l'étude de la respiration humaine et cellulaire. Une bouteille Nalgene de 250 ml est incluse pour réaliser des expériences contrôlées avec de petites plantes et de petits animaux. Le capteur de gaz Go Direct peut être utilisé dans une variété d'expériences: Tester l'activité de la catalase dans diverses conditions. Mesurez la consommation d'oxygène au repos et après l'exercice. Mesurer le changement de gaz produit au cours de la photosynthèse. Comparer les taux de respiration cellulaire des pois en germination et des pois non en germination. Measurement Range:0 bis 27% (0 bis 270 ppt)  Typical Resolution:0.01% Accuracy:+/- 1% volume O2 User manual

Use the Gas Pressure Sensor to monitor pressure changes of a gas in chemistry and biology experiments. The Gas Pressure Sensor can be used to monitor pressure changes in a gas. The range is wide enough to perform Boyle’s law yet it is sensitive enough to conduct vapor-pressure or pressure-temperature experiments. Biology teachers can use the Gas Pressure Sensor to monitor transpiration or respiration in an enclosed environment. Pressure Range:0 to 210 kPa (0 to 2.1 atm or 0 to 1600 mm Hg) Accuracy:±4 kPa User manual

The Go Direct Voltage Probe combines a wide input voltage range and high precision, making it an excellent choice for lab investigations of both AC/DC circuits and electromagnetism. Use this differential probe to measure the voltage in simple circuits, to study basic principles of electrochemical cells, or to investigate the resistivity of different metals. With a range of ±15 V, this system is ideal for use in “battery and bulb” circuits. Go Direct Voltage is capable of kHz sampling and mV resolution, so you can also use it to capture more difficult electric potentials, such as the electromagnetic field induced in a coil by a moving magnet. This single sensor can take the place of several voltmeters in your classroom. The Go Direct Voltage Probe can be used in a variety of experiments: Measure potential difference at various places in series and parallel circuits. Investigate Ohm’s law in simple circuits. Measure the voltage across a capacitor in RC and RLC circuits. Explore Faraday’s law and induced EMFs in a coil of wire. Specification: Input voltage range: ±15.0 V Maximum voltage on any input: ±15 V Typical resolution: 0.5 mV Power: Internal rechargeable battery or USB connection Connections: Wireless: Bluetooth Wired: USB Included: Go Direct Voltage Probe Micro USB Cable

The 4-wavelength Go Direct Colorimeter measures absorbance or transmittance of a liquid sample. It directly connects wirelessly via Bluetooth® or wired via USB to your platform. Use this sensor to explore absorbance and percent transmittance in a variety of experiments including Beer’s law (absorbance vs. concentration) and kinetic studies (concentration vs. time). Students select between four wavelengths (430 nm, 470 nm, 565 nm, 635 nm) to set up their experiment. Go Direct Colorimeter features one-step calibration for all four wavelengths. It’s as simple as inserting a cuvette of distilled water and pressing the Calibrate button. Go Direct Colorimeter can be used in a variety of experiments: Conduct Beer’s law investigations. Determine the concentration of unknown solutions. Study changes in concentration vs. time. Monitor reaction rates. Specifications Range: 0 to 3 (absorbance) Useful range: 0.05 to 1.0 (absorbance) 90% to 10% transmittance (%T) Wavelengths: 430 nm, 470 nm, 565 nm, 635 nm Connections: Wireless: Bluetooth Wired: USB Included: Go Direct Colorimeter Micro USB Cable 3.5 mL cuvettes (15)

Le moniteur de rayonnement Go Direct détecte les rayonnements alpha, bêta, gamma et X. Il se connecte directement à votre plate-forme sans fil via Bluetooth® ou câblé via USB. Utilisez le détecteur de rayonnement Go Direct pour explorer les statistiques du rayonnement, mesurer le taux de désintégration nucléaire et surveiller les descendants du radon. Ce capteur facile à utiliser consiste en un tube Geiger-Mueller monté dans un petit étui en plastique robuste. Une fenêtre mince protégée par un écran métallique permet de détecter le rayonnement alpha, ainsi que le rayonnement bêta et gamma. Chaque nouvelle détection est signalée par un voyant LED rouge clignotant et peut également être accompagnée d'un signal audio optionnel. Le détecteur de rayonnement Go Direct peut être utilisé dans une variété d'expériences: Déterminer la demi-vie d'un isotope. Enquêter sur le blindage contre les rayonnements. Détecter les sources de rayonnement de fond. Spécifications: Capteur: Tube GM trempé aux halogènes LND 712 (ou équivalent) avec fenêtre en mica, épaisseur de 1,5 à 2,0 mg/cm2 Sensible aux rayonnements alpha, bêta, gamma et X Alimenté par une batterie rechargeable de 300 mAh, rechargé par câble USB LED rouge clignote sur la détection de rayonnement Signal audio optionnel sur la détection des rayonnements Connexions: Sans fil: Bluetooth Câblé: USB Comprend: Go Direct Radiation Monitor Micro USB Câble

A simple and rugged sensor designed to measure temperature in the range of –200ºC to 1400ºC. Low cost and a wide temperature range make the Thermocouple an economical, versatile temperature sensor. This sensor uses type-K thermocouple wire to and can be used to measure flame temperatures as high as 1400˚C, or liquid nitrogen temperatures at -196˚C. The Thermocouple has an internal ice-point compensation chip, so you do not need to place a reference wire in an ice-water bath. You can simply use one measuring lead to take temperature readings. Each Thermocouple is individually calibrated. Typical Accuracy:0ºC to 900ºC: ±2.2º–200ºC to 0ºC: ±5ºC900ºC to 1400ºC: ±15ºC Typical Resolution:0.40ºC User manual

Description This sensor has an exposed thermistor that results in an extremely rapid response time, and this design allows for use in air and water.  Use this sensor in a variety of experiments:   Investigate the effect of temperature on solar panel output. Explore passive solar heating or solar collectors. Examine the warming function of nasal passageways. Discover the effect of vascularity on skin temperature recovery. Important: For use in air and water only. For temperature measurements in harsher environments that require a more durable probe, we recommend the Go Direct® Temperature Probe.  Rechargeable Battery—Ready When You Are The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our free Graphical Analysis™ 4 app or LabQuest 2 App. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students. Wired or Wireless—The Flexibility to Choose Our Go Direct sensors connect directly to your mobile device, Chromebook™, or computer using our free Graphical Analysis™ 4 app—no additional equipment or software purchases are necessary. Go Direct sensors can be used wired via USB or wirelessly via Bluetooth® wireless technology, allowing you to choose the solution best for your classroom or laboratory.   Specifications Range: –25 to 125°C Maximum temperature that the sensor can tolerate without damage: 150°C Accuracy: ±0.5°C Response time (from 25°C to 100°C in water): 5 seconds Probe dimensions: Probe handle: Length: 6.8 cm Width: 2.25 cm Thickness: 1.3 cm Cable length: 1 m Connections: Wireless: Bluetooth Wired: USB

The Oxidation-Reduction Potential (ORP) Sensor measures the ability of a solution to act as an oxidizing or reducing agent. Use the ORP Sensor to measure the oxidizing ability of chlorine in swimming pools or to determine when the equivalence point has been reached in an oxidation-reduction reaction. Type:Sealed, gel-filled, epoxy body, Ag/AgCl reference Storage solution:pH-4/KCl solution (10 g KCl in 100 mL buffer pH-4 solution) Redox potential range:-450 to +1100 mV User manual

This Voltage Probe can be used with the Vernier LabPro, LabQuest, LabQuest Mini, Go!Link, Easylink, SensorDAQ and CBL 2 to measure direct voltage. The Voltage Probe is a bipolar sensor. The black lead is grounded along with the interface, and the sensor reports the potential difference between the red lead and ground. It can be used to measure the potential in DC or AC circuits. You might also consider the Differential Voltage Probe (DVP-BTA). Multiple Differential Voltage Probes can be connected to a circuit without the use of a common grounding terminal. Input voltage range:± 10 V User manual

   

The O2 Gas Sensor can be used to monitor gaseous oxygen levels in a variety of biology and chemistry experiments. The sensor is intended for measuring gaseous, not aqueous, O2 concentration. The O2 Gas Sensor measures oxygen concentration in air, and is temperature compensated for use in different environments. It has a wide measurement range, allowing it to be used to study human and cellular respiration. The O2 Gas Sensor also includes a 250 mL bottle that can be used to study the rusting of iron or as a respiration chamber for monitoring plants and insects. Measurement Range:0 bis 27% (0 bis 270 ppt)  Typical Resolution:0.01% Accuracy:+/- 1% volume O2 User manual

The Go Direct Conductivity Probe determines the ionic content of an aqueous solution by measuring its electrical conductivity. It directly connects wirelessly via Bluetooth® or wired via USB to your platform. Go Direct Conductivity Probe determines the ionic content of an aqueous solution by measuring its electrical conductivity. It features a built-in temperature sensor to simultaneously read conductivity and temperature. Automatic temperature compensation allows students to calibrate the probe in the lab and then make measurements outdoors without temperature changes affecting data. This temperature compensation can be turned off to perform conductivity studies as a function of temperature. The Go Direct Conductivity Probe has a range of 0 to 20,000 μS/cm to provide optimal precision in any given range. An alternating current at its electrodes prevents polarization and electrolysis, reducing contamination of solutions. Its ABS-body graphite electrode resists the corrosion typical in metal electrodes. The Go Direct Conductivity Probe can be used in a variety of experiments: Demonstrate diffusion of ions through membranes. Investigate the difference between ionic and molecular compounds, strong and weak acids, or ionic compounds that yield different ratios of ions. Measure Total Dissolved Solids (TDS). Specifications: Range: 0 to 20,000 μS/cm (0 to 10,000 mg/L TDS) Temperature compensation: Automatic from 5 to 35°C, can be turned off Temperature range (can be placed in): 0 to 80°C Cell constant: 1.0 cm-1 Description: ABS body, parallel carbon (graphite) electrodes Dimensions: 12 mm OD and 120 mm length Connections: Wireless: Bluetooth Wired: USB Included Go Direct Conductivity Probe Micro USB Cable