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Monarch Instrument Optical Sensors
Remote Optical Sensor for Tachometer
 
ROLS (Remote Optical Laser Sensor): Threaded stainless steel remote optical laser sensors have a
visible red laser light source and green LED ‘On Target’ indicator. Performs over a wide speed
range and operating envelope.

Common usage:
Wide range of applications where distance to target is large.

Operating Distance: Up to 25 feet (7.62m) and 70° offset from target
Speed Range: 1‐250,000 RPM
Operating Temperature: ‐40° to 176°F (‐40° to 80°C)
Power Input: 3.3 to 15Vdc, 35mA
Output Signal: TTL same as source
Standard Cable: 8 feet (2.4m)
Dimensions: 3.12” (L) x 0.71” (M16 x 18 x 79.4mm)



ROS‐HT (Remote Optical Sensor, High Temp): Threaded stainless steel remote optical sensor with
visible incandescent white light source. Ideal for automotive and truck cooling system testing up
to 257°F (125°C).\

Common usage: Automotive and heavy truck cooling fan speeds.

Operating Distance: 2 feet (61cm) and 45° offset from target
Speed Range: 1‐50,000 RPM
Operating Temperature: ‐13° to 257° F (‐25° to 125°C)
Power Input: 6‐24Vdc, 40mA
Output Signal: TTL same as source
Standard Cable: 25 feet (7.6m)
Dimensions: 2.9” (L) x 0.625” diameter (73 x 16mm)


Item# Item Name Our Price Qty Add
MON-6180-029-ROLS-P Remote Optical Laser Sensor with 8 foot cable, 1/8" (3.5mm) phone plug connector, mounting bracket with jam nuts and 12 inches of T-5 Tape
$226.00
MON-6180-030-ROLS-W Remote Optical Laser Sensor with 8 foot cable, 3 tinned leads, mounting bracket with jam nuts and 12 inches of T-5 Tape
$224.00
MON-6180-058-ROS-HT-W-25 Remote Optical Sensor - High Temp, 25 foot cable, mounting bracket and 12 inches of reflective tape
$365.00
MON-6180-057-ROS-P Remote Optical Sensor 8 foot cable with 1/8 inch phone plug termination., mounting bracket and 12 inches of reflective tape
$173.00
MON-6180-056-ROS-W Remote Optical Sensor 8 foot cable, mounting bracket and 12 inches of reflective tape
$171.00
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