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White rectangular wall-mount motion sensor with curved lens, 10.6 x 5.4 x 3.6 cm

Emerson BJ-960 Wired Dual PIR Motion Sensor 10m 110°

SKU CH-SMSE-6PY6T MPN BJ-960

A wired dual PIR motion detector with 10 m range, 110° coverage and selectable NC/NO alarm output for hard-wired security systems

  • ProtocolWireless
  • Specifications10.6 L x 5.4 W x 3.6 H centimeters, 0.091 kilograms, 10 mete
  • FeaturesWall Mount, 10 meters, false
  • Dimensions14.33in W x 12.83in H x 9.06in D
  • Weight0.091 kilograms
  • Contains Embedded BatteryNo
  • Dual PIR sensor reduces false alarms from pets
  • 10 m detection range covers large rooms and corridors
  • 110° wide angle monitors broad areas with one unit
  • NC/NO selectable output fits various alarm panels
  • Pulse‑count adjustment adapts sensitivity to environment

Dual PIR Motion Detector

The Emerson BJ-960 is a hardwired dual passive infrared sensor designed for integration with existing home alarm systems. It detects human body heat movement within a defined range while using internal circuitry and lens design to reduce false triggers from pets. Wall mounting at approximately 2.2 metres height is recommended for optimal coverage in residential or commercial settings.

Wired DC Voltage Interface

The unit operates on a DC 9 to 16 volt supply drawing 25 milliamps at 12 volts, requiring a permanent wired connection rather than battery power. Alarm output contacts are selectable between normally closed and normally open via an internal jumper, with a maximum contact rating of 28 volts DC at 80 milliamps. A tamper switch provides a separate normally closed contact rated at 28 volts DC and 100 milliamps maximum.

10 Metre 110 Degree Coverage

Detection extends to 10 metres across a 110 degree horizontal angle when mounted at the specified height and angled 6 to 12 degrees downward. Pulse count can be set to first or second level to suit general indoor or harsher environments. The detector functions reliably between minus 10 and plus 50 degrees Celsius.

Highlights

  • Dual PIR sensor reduces false alarms from pets
  • 10 m detection range covers large rooms and corridors
  • 110° wide angle monitors broad areas with one unit
  • NC/NO selectable output fits various alarm panels
  • Pulse‑count adjustment adapts sensitivity to environment

Specifications

BrandEmerson
ModelBJ-960
ProtocolWireless
Part NumberBJ-960
Specifications10.6 L x 5.4 W x 3.6 H centimeters, 0.091 kilograms, 10 meters, Wall Mount, Corded Electric, Battery not included, -1E+1 degrees_celsius, [Home Alarm Systems], BJ-960, BROJEN, White-BJ-960
FeaturesWall Mount, 10 meters, false
Dimensions14.33in W x 12.83in H x 9.06in D
Weight0.091 kilograms
Contains Embedded BatteryNo

Questions about this item

Should I set the BJ-960 to first-level or second-level pulse count for a normal indoor room?

Choose first-level pulse count for general indoor use; switch to second-level only for harsh environments with strong interference.

What does the 110° detection angle and 10 m range mean when the sensor is mounted at the recommended 2.2 m height?

At 2.2 m height the unit covers up to 10 m range within a 110° horizontal field, and the anti-pet function ignores animals up to 25 kg.

The spec lists NC/NO alarm output and a DC 28 V 80 mA contact rating — what does that limit in practice?

The relay contacts can switch up to 28 V DC at 80 mA maximum, so the connected alarm panel input must stay within those limits.

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