Monarch Instruments Optical Speed Sensors

ROS-W
Remote Optical Sensor with 8 foot cable and mounting bracket
Power: 3.3 to 15VDC
Output: 5 Volt TTL Pulse with 5 VDC Input Power
Cable with Tinned Leads
Compatible with Monarch and Airpax Digital Tachometers.
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Monarch ROS-P
Same as ROS-W with 1/8" Phone Plug
Power: 3.3 to 15VDC
Output: 3.3 to 15 Volt Pulse (input power dependant)

Smart Laser Sensor
Power: 115/230 VAC
includes:
* SLS-CA BNC output cable - 8 foot
* 12" Reflective Tape
* Universal recharger