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Allows students to easily and accurately measure velocity and acceleration to study the movement of an object in free fall, rolling objects, collisions, and pendulums, without needing to know anything about the geometry of the object. Has 2 photogates built into the arms of the sensor, plus a single laser gate for use with objects passing outside the arms of the sensor. Rechargeable battery has long battery life. Comes with accessory rod and micro USB cable.

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Product Details
The Go Direct® Photogate allows students to easily and accurately measure velocity and acceleration to study the movement of an object in free fall, rolling objects, collisions, and pendulums, without needing to know anything about the geometry of the object. The device includes 2 photogates built into the arms of the sensor, plus a single laser gate for use with objects passing outside the arms of the sensor. Using the laser gate requires a visible-light pen laser (not included).

Use the Go Direct® Photogate in a variety of experiments:

• Measuring acceleration of a cart on an incline using a cart picket fence
• Measuring the angular motion of a wheel as it is turning
• Investigating Newton's second law using a half-Atwood machine to measure acceleration
• Determining the time an object passes one or more gates

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 the award-winning Vernier Graphical Analysis® app, as well as LabQuest® 3. 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.

Wireless or Wired—The Flexibility to Choose
The Go Direct® sensor connects directly to your mobile device and Chromebook™ or other computer using the Vernier Graphical Analysis® app—no additional equipment or software purchases are necessary. The sensor also can be used wired via USB or wirelessly via Bluetooth® technology, allowing you to choose the solution best for your classroom or laboratory.

Specifications

• Infrared source: Peak at 880 nm
• Gate width: 77.5 mm
• Internal gate separation: 20 mm
• Distance from internal gates to bottom of photogate arms: ~10 mm
• Distance from internal gates to sides of photogate arms: ~5 mm
• Gate LED indicators: Off for unblocked gate, on for blocked gate
• Battery: 650 mAh Li-Poly rechargeable; single full charge, ~10 hours continuous data collection; long term, ~300 full charge cycles (several years depending on usage)
• Connections: Wireless, Bluetooth®; wired, USB
• Software: Requires Vernier Graphical Analysis® software (for iOS®, Android®, Chrome®, Windows®, and MacOS®), available on the Vernier® website
• Warranty: 5-year limited (1 year on battery)

Note: Vernier products are designed for educational use. They are not designed nor are they recommended for any industrial, medical, or commercial process such as life support, patient diagnosis, control of a manufacturing process, or industrial testing of any kind.