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White wireless door sensor with compact receiver unit

Emerson D7 Door Sensor 500ft Range 32 Chimes 65dB White

SKU CH-V4Y3-Z3NAS

A wireless contact sensor alerts you with 32 chimes at up to 65 dB across a 500 ft range

  • Product colorWhite
  • Product typeClock
  • DetailsSECRUI, D7, M5373+D037, 0.145 kg, 12 V, Battery Powered, 65
  • Key featuresContact Sensor, Door Mount, 65 decibels, Smartphone, Tablet
  • Product weight0.145 kg
  • Wireless range up to 500 ft in open areas
  • 32 selectable chimes with five volume levels
  • Loud 65 dB alert audible across rooms
  • Simple adhesive installation requires no wiring
  • Compact receiver plugs directly into any socket

Emerson D7 Wireless Door Sensor

The Emerson D7 is a battery-powered contact sensor that triggers a wireless chime when a door or window opens. It operates on a 12 volt supply and weighs 0.145 kilograms, mounting with adhesive strips so no wiring or tools are required.

Suits homes and small businesses needing a simple

The kit includes one sensor and a plug-in receiver offering 32 selectable chimes with five volume steps up to 65 decibels. It is not intended for installations that require multiple monitored zones or integration with a wider smart-home hub.

500 foot open-area range under sustained use

The transmitter maintains its 500 foot link to the receiver across repeated door cycles without degrading signal strength. Volume and tone settings remain stable during continuous operation, and the compact receiver stays cool in a wall socket.

How it compares

Measured against everything we stock in Alarm Kits & Motion Sensors, at today’s prices. Recalculated every night.

Price $28.99
Cheaper than about 57% of the 180 comparable items (median $30.99).

Specifications

Product
Brand nameEmerson
Model nameD7
Part numberM5373+D037
Product colorWhite
Product typeClock
Size & build
Product weight0.145 kg

Questions about this item

Does the Emerson D7 door sensor need a separate power outlet for the receiver unit?

The receiver plugs directly into a standard socket and draws 12 volts, so no extra wiring or outlet is required.

Will the 500 ft wireless range still reach the receiver if I keep my older steel front door?

The 500 ft range is measured in open area; a steel door can reduce the effective distance, so test the sensor at the intended mounting spot before final placement.

How can I verify the Emerson D7 is triggering the chime correctly after I mount it?

Open the monitored door — the receiver will sound one of the 32 selectable chimes at the chosen volume level, confirming the sensor and receiver are paired and working.

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