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White circular ceiling sensor 4.5 in diameter with two pointed screws

LITHONIA LIGHTING

LITHONIA LIGHTING SENSORSWITCH CM 10 WR Wireless Occupancy Sensor

SKU CH-2NMV-8B9BV

Wireless PIR occupancy sensor for ceiling mounting up to 15 ft high, covering 1,800 sq ft with 30 sec to 20 min adjustable delay and 0-10V dimming control

  • Wireless RF control simplifies installation with no wiring needed
  • PIR sensing covers 1,800 sq ft at up to 15 ft mounting height
  • 0-10V dimming compatible for flexible LED lighting control
  • Adjustable time delay from 30 sec to 20 min suits any space
  • RoHS compliant and ceiling mount design fits standard installations

Ceiling-Mount Wireless Occupancy Sensor

The Lithonia Lighting SensorSwitch CM 10 WR is a ceiling-mounted occupancy sensor that uses passive infrared detection to automate lighting. It communicates over a 902 MHz wireless RF link and supports 0-10V dimming control for LED fixtures. The unit operates on 12 to 24V DC and includes two pointed-tip screws for installation. It is RoHS compliant and finished in white.

Suited for Hands-Free Lighting Control

This sensor suits installers who need wireless occupancy-based lighting control in spaces up to 1,800 sq ft with mounting heights up to 15 ft. Adjustable time delays from 30 seconds to 20 minutes allow tuning for different room uses. Buyers who require a line-voltage device, a specific load rating independent of the control unit, or a hardwired communication protocol should look at other options.

902 MHz Wireless RF Communication

The single specification that determines compatibility is the 902 MHz wireless RF communication method. The sensor must pair with a compatible control unit that shares this frequency and protocol to function. Verify that the existing or planned control system operates on 902 MHz RF before purchasing.

How it compares

Measured against everything we stock in Contactors, Relays & Motor Starters, at today’s prices. Recalculated every night.

Price $111.99
Pricier than about 75% of the 1,098 comparable items (median $61.99).

Specifications

Product
Brand nameSENSORSWITCH

Questions about this item

What ceiling opening and screw type does the 4.5 in diameter sensor require?

The sensor measures 4.5 in overall diameter and includes two pointed-tip screws for direct ceiling mounting.

How is the 12-24V DC sensor wired and paired, and what step is often missed?

Connect the low-voltage leads to a compatible control unit, then press the sensor's pairing button to link it on the 902 MHz RF channel; skipping the pairing step leaves the sensor unlinked.

When should the PIR lens be cleaned and the 30 sec–20 min time delay rechecked?

Clean the lens if coverage drops below the 1,800 sq ft rating at 15 ft mounting height, and verify the delay setting after any control-unit firmware update.

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