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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)

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

This kit is included with the Gas Pressure Sensor. It contains all accessories for performing chemistry and biology experiments using any of the Vernier pressure sensors.

When Vernier introduced the new Drop Counter, they decided to include a Vernier Microstirrer to enhance stirring. Since then, they've had many requests to have this as a separate product. The Microstirrer takes the place of the stirring bar that is typically used with a laboratory magnetic stirrer. The new Vernier Microstirrer easily attaches to the end of a pH Sensor, Conductivity Probe, Dissolved Oxygen Probe or Ion-Selective Electrode. When the magnetic stirrer plate (required, but not included) is turned on, its magnetic field turns the paddle wheel of the Microstirrer, resulting in enhanced stirring near the electrode tip. The Microstirrer works with any magnetic stirrer.