Gjd D-Tect 50M Long-Range External Motion Detector

Long-range motion detector that can be adjusted between 25m & 50m, perfect for monitoring particularly large areas

The D-TECT 50, BS 8418 compliant movement detectors combine advanced signal processing and unique optical systems, which allow for the beam range to be programmed from 25 to 50 metres, avoiding boundary overspill, making it particularly effective for perimeter detection

  • Detection area of up to 50m
  • Adjustable pan and tilt
  • A conduit cable adaptor is available
  • Engineer friendly features to ease cable termination, set-up and servicing
  • Covert sensor module

Technical Specification

Detection Area Programmable between 25m & 50m
Coverage 13 degrees detection angle, 50m x 10m coverage max. Two Fresnel lenses giving up to 50m x 5m or 50m x 10m (Standard)
Adjustment 180° pan + 90° tilt
Customised Optics Double silicon shielded quad element eliminates 50,000 Lux of white light
Outputs Silent solid state magnetically immune
Alarm 1 & Alarm 2 Volt free relay signal contact 24V AC/DC @ 50mA with an integral 25Ω series resistor, selectable N/O & N/C Adjustable timer options: 2 to 60 seconds
Output ‘A’ Open collector negative switching – 25mA max Alarm period 400ms
Output ‘S’ Open collector negative switching – 25mA max Alarm period: detection + 60 seconds Adjustable: Dusk (2 Lux) to 24 hour
Output ‘T’ Tamper Volt free, normally closed switch output
Tamper Switches Front and rear tamper switches; case open and removal from wall
Power Input 9 to 24 V AC/DC
Current 9mA (12V nominal)
Pulse Count 1 - 2
Temp. Compensation Digital sensitivity adjustment
Control Digital microprocessor – non volatile memory
Walk Test Output test mode with LED indication
Operating Temp. -20 to +55 Centigrade Conformal coated electronics for increased stability
Housing High impact zinc alloy
Protection Rating IP 65
Dimensions 145 x 120 x 115 mm
Weight 750 grams NET, 880 grams GROSS
Mounting Height Variable - optimum height 3 metres
Cable < 200m Using all five outputs (including tamper) – 12 core 7/0.2mm
Cable < 500m Using all five outputs (including tamper) – 12 core 16/0.2mm


  • Model: GJD350
  • Shipping Weight: 1.5 kgs
  • Manufactured by: GJD
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£163.49 Ex VAT

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