GJD

70 products

Showing 1 - 48 of 70 products

Shop GJD external detection for UK installers, from D-TECT PIR, dual-tech and laser detectors and D-TECT X wireless detectors to Opal PIRs, Clarius PLUS illuminators, lighting controllers and speech warning devices.

GJD Ranges We Stock

D-TECT wired detectors: D-TECT 2 quad PIR and D-TECT 2 IP, D-TECT 3 IP dual tech, D-TECT 50 IP, D-TECT Universal and pet immune models, with covers, brackets and a wire cage.
Wireless detection: D-TECT X MkIII 30m and 50m detectors, a battery-powered dual-tech model, receiver, 4-way expander, repeater and walk tester, plus Ricochet wireless PIRs.
Laser detection: D-TECT Laser 5m and 10m and the 4 layer D-TECT LZR 25m, with programmer, spot finder and bracket.
PIR and curtain detectors: Opal XL, Mini Opal and Elite external PIRs, and Pearl anti-masking curtain detectors. See all PIR motion sensors.
Clarius illuminators: Clarius PLUS white-light and extra large infrared illuminators in 850nm and 940nm, and wall brackets.
Control and warning: the Emerald 3000 Mk3 lighting controller, DygiZone and Multiswitch controllers, IPAnything IP relay, Multispeech speech enunciator and GSM speech and text communicator.

Choosing a GJD Detector

PIR detectors sense body heat moving across the zone. Dual-tech models add microwave for fewer outdoor false alarms, and laser detectors create precise detection areas that can be set with the programmer. Choose wireless D-TECT X where cabling is impractical. For cameras, 850nm infrared gives a faint red glow at the lamp, while 940nm is covert. Compare intruder detection and CCTV cameras.

Why Buy GJD from JEM Systems UK

JEM Systems UK supplies genuine GJD products, all brand new and factory sealed, to trade installers across the UK.
More than 60 GJD products, including covers, brackets and programming tools.
Fast, tracked UK delivery, next working day on UK mainland orders placed before 2pm, subject to stock.

GJD FAQs

What is GJD D-TECT?

D-TECT is GJD's range of external detectors, covering PIR, dual-tech, IP-connected and laser models used to trigger CCTV, lighting or alarms.

How many D-TECT X detectors can one receiver take?

The receiver takes 4 detectors, expandable to 16 with the GJD393 4-way expander module. D-TECT X MkIII detectors use two CR123 batteries, not supplied.

Is GJD a UK manufacturer?

Yes. GJD designs and manufactures external detection and illumination products in the UK.

Showing 1 - 48 of 70 products

GJD GJD Mini Opal Replacement Front Cover

£4.05

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD 4 Zone Expansion Unit

£92.10

In stock

GJD GJD VCS-100 Clarius Mains Floodlight, 100W, 240V, 50-60 Hz

£153.20

In stock

GJD GJD IL-8 Large Infra-Red Illuminator, 850nm, 228m

£328.00

In stock

GJD GJD IS-8-PLUS Small Clarius PLUS IP Infrared Illuminator, 101m (331.4') Range, 850nm Wavelength

£180.15

In stock

GJD GJD GJD350 D-TECT 50 Long-Range PIR Motion Detector, 50m (164') Range, Silver with White Cover

£246.70

In stock

GJD GJD IM-8-PLUS Medium Clarius PLUS IP Infrared Illuminator, 187m (613.5') Range, 850nm Wavelength

£246.55

In stock

GJD GJD GJD018 Opal RFX PIR Motion Detector, 35m (114.8m) Range

£60.80

In stock

GJD GJD GJD310 D-TECT 3 Quad-Element PIR and Microwave Motion Detector, 30m (98.4') Range

£303.70

In stock

GJD GJD GJD850R D-TECT Ricochet 50m Wireless PIR Detector

£220.60

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT 2 Quad PIR Detector Black Housing White Cover

£174.25

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT 2 Quad PIR Detector Black Housing Burgundy Cover

£174.25

In stock

GJD GJD D-TECT X Repeater

£241.00

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Single Pole Mount Bracket Black

£48.25

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT 50 IP Detector Silver Housing White Cover

£311.45

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Pearl Curtain Beam Detector Anti-Masking White

£78.85

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT 3 IP Dual Tech Detector Silver Housing White Cover

£380.05

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Pearl Curtain Detector Anti-Masking 10.587GHz c/w T Bracket White

£78.85

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD GJD830R D-TECT Ricochet 30m Wireless PIR Detector

£202.10

In stock

GJD GJD D-TECT Laser Bracket

£71.05

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT X Dual Tech Outdoor Motion Detector Battery Powered

£286.15

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT Laser 10m x 10m Black

£1,501.75

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD IPAnything ABS - IP Relay Unit

£398.55

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT 3 IP Dual Tech Detector Black Housing White Cover

£380.05

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD VM-CW-P Clarius PLUS Medium PoE+ White-Light LED Illuminator

£261.65

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT Pet Immune Detector Silver Housing White Cover

£259.50

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Opal Replacement Front Cover

£4.05

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Horn Speaker for Multispeech

£21.35

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT Laser Programmer

£50.80

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT 2 IP Detector Black Housing Dark Cover

£237.35

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Emerald 3000 Mk3 Dual Zone Lighting Controller 230V

£73.65

In stock

GJD GJD D-TECT Laser 5m x 5m Black

£1,095.85

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Triple Illuminator Wall Mount Bracket Black

£82.50

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Multispeech 4 Channel Speech Enunciator Kit

£170.55

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT Laser Spot Finder

£131.95

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD GJD500 D-TECT LZR 4-Layer Laser Detector 25m x 25m

£1,704.65

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT Universal Dual Tech

£241.25

In stock

GJD GJD D-TECT Cover Dark

£7.35

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Double Illuminator Wall Mount Bracket Black

£61.20

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT 2 Quad PIR Detector White Housing

£174.25

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT X Signal Strength & Walk Tester

£94.60

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Clarius PLUS Extra Large Infrared Illuminator 940nm

£423.85

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT 2 Quad PIR Detector Silver Housing White Cover

£174.25

In stock

GJD GJD Pearl Swivel Bracket White

£9.35

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Pearl Swivel Bracket Silver

£9.35

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Clarius Small PoE PLUS White-Light LED Illuminator

£217.65

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD D-TECT X 4-Way Expander Module

£120.55

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

GJD GJD Multiswitch 3000 Weatherproof Integrated Controller

£100.60

Pre-Order (Not in Stock) - Estimated Lead Time: 2-6 Weeks.

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