GJD
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.
- Same day dispatch on Poole stock
- Genuine, brand new stock
- Trade prices with a trade account
- Expert help 0113 518 0540
About GJD
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.