Sensor WLD, dual photogate

Wireless sensor for NAWI with display (WLD = wireless sensor with display).

Thanks to its integrated colour display, this WLD sensor is also a standalone digital measuring device. Simple measurements therefore take only a few seconds.

The display shows the following parameters:
.) Measuerment value
.) Unit of measurement
.) Connection status (mobile or PC)
.) Sensor ID
.) Battery capacity and charge status

Of course, this WLD-SMART sensor can also be used wirelessly via Bluetooth or wired via USB with the free "Science#" app on mobile devices such as tablets or iPads (Android or iOS) or computers (Windows or Mac).

A single button press is all it takes to display other measured values (only for sensors with multiple measuring ranges or multiple built-in sensor types) or to calibrate sensors.
Up to 4 sensors can be used simultaneously in BT mode.
Display: 0.96" OLED colour display (128 x 64 pixels)
Power supply: Li-poly battery (3.7 V 700 mAh)
Operating time 4 to 22 hours with a fully charged battery (depending on conditions of use)
Connection: Bluetooth 5.0 Low Energy (BLE) (Mac, Android, iOS) - and Bluetooth 2.1 Classic (Windows)
USB 2.0 (Type C)

Delivery includes USB-C cable for charging the battery, data transfer or wired measurement for a higher sampling rate.

Two light gates on the inside of the arm enable the measurement of the time and speed of an passing object. Linear movements can be recorded using a clip-on spoke wheel.
By connecting up to four additional light gates, the measured values of successive events can be recorded.
A light detector on the outside of the arm enables time measurement with an ‘arm width’ of several metres using an external laser signal.

- Measurement of the velocity and acceleration of an object
- Measurement of the period of simple pendulum motion
- Measurement of the time interval of a moving object
- Measurement of gravitational acceleration in free fall

Measuring range: 0 … 100 sec
Resolution: 10 µs
Arm length: 80 mm
Gate distance: 20 mm
Reaction time: 2,5 µs
Cooldown: 3,8 µs
Sampling rate: event-based
Housing dimensions: 183 x 38 x 71 mm
Delivery with spoked wheel and support rod