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GJD IP65 Products

This page holds GJD perimeter and external detectors. The GJD505 and GJD509 D-TECT Laser detectors scan virtual curtain zones, the GJD320 D-TECT 60 throws a long, narrow dual PIR beam, the GJD260 D-TECT 3 IP combines PIR and microwave and runs on PoE, and the GJD142/W Pearl forms a PIR and microwave curtain. Each of these five is rated IP65, and the GJD260 has a web browser interface.

Choosing GJD IP65 Products

Pick the detection method for the area: a laser curtain for a precise zone, a long PIR beam for a boundary, or combined PIR and microwave sensing.

D-TECT Laser curtain detectors

The GJD505 and GJD509 use time-of-flight laser scanning to build curtain-style detection zones with a positional resolution of about 10 cm. The GJD505 covers zones of up to 5.0 × 5.0 m. The GJD505 offers up to four configurable curtains with alarm and pre-alarm, has three red alignment lasers that are visible only during alignment, and needs a 24 VDC supply. The GJD509 covers up to 10 m × 10 m, responds in about 20 ms and has front and rear tamper outputs plus wired alarm outputs. Both suit perimeter protection and doorway or access monitoring.

Long-range PIR

The GJD320 D-TECT 60 uses dual PIR sensors behind custom optics to form a long, narrow beam, programmable to 40 m or 60 m and covering up to 60 m × 6 m. It aims with 180° pan and 90° tilt, has volt-free silent solid-state outputs, a tamper switch and a walk-test mode, and is housed in zinc alloy for -20 °C to +55 °C. The GJD320 is BS8418 compliant, with a recommended mounting height of about 2.6–3.0 m.

PIR and microwave detectors

The GJD260 D-TECT 3 IP supports PIR and microwave detection with a programmable beam of up to 30 metres that minimises boundary overspill. It uses Power over Ethernet for integration with VMS and camera systems and is operated through a web browser interface. The GJD142/W Pearl pairs PIR and microwave in a narrow curtain with a selectable range of up to 12m, in a compact 117mm × 44mm × 41mm housing.

ModelTechnologyCoverageKey detail
GJD505Laser, time of flightUp to 5.0 × 5.0 m24 VDC supply
GJD509Laser, time of flightUp to 10 m × 10 mFront and rear tamper
GJD320Dual PIR40 m or 60 mVolt-free outputs
GJD260PIR and microwaveUp to 30 metresPower over Ethernet
GJD142/WPIR and microwave curtainUp to 12m117mm × 44mm × 41mm

Related categories

See the full GJD products range and GJD motion detectors, connect detectors to CCTV cameras or IP66 rated CCTV cameras, light the area with floodlights and security lights, or read our Help & Support guides.

Frequently asked questions

How does a GJD laser curtain detector work?

It scans with a laser and measures time of flight to create a virtual curtain, detecting movement and presence within it. The GJD505 builds curtain zones of up to 5.0 × 5.0 m and the GJD509 up to 10 m × 10 m, both with about 10 cm positional resolution. The GJD505 and GJD509 use visible alignment lasers just for setup, and their operating laser is infrared at 905 nm.

Which GJD detector suits a long, narrow boundary?

The GJD320 D-TECT 60 suits a long boundary: its dual PIR optics form a long, narrow beam, programmable to 40 m or 60 m and covering up to 60 m × 6 m. It is aimed with 180° pan and 90° tilt, and the GJD320 has a recommended mounting height of about 2.6–3.0 m. It is designed for perimeter detection on commercial and high-security sites.

Can a GJD detector be powered over Ethernet?

Yes, the GJD260 D-TECT 3 IP uses Power over Ethernet, which allows simple integration with major VMS and camera systems. The GJD260 supports PIR and microwave detection, has a programmable detection beam range of up to 30 metres to minimise boundary overspill, and is operated through a web browser interface. It is rated IP65 for weather resistance.

What is the GJD142/W Pearl used for?

The GJD142/W Pearl is an outdoor curtain detector for domestic and commercial security. The GJD142/W uses passive infrared and microwave technologies to create an invisible curtain, with a narrow PIR curtain lens and a selectable detection range of up to 12m. It is rated IP65 and measures 117mm high, 44mm wide and 41mm deep.

What power supply does the GJD505 need?

The GJD505 needs a 24 VDC supply, and a 3 A supply is recommended. The GJD505 is a compact laser motion detector with up to four configurable curtains for alarm and pre-alarm, is suitable for indoor or outdoor use at IP65, and supports remote programming and alignment aids for installers. The alignment lasers on the GJD505 are Class 3R while it is being aligned.

Why buy from West Midlands Electrics

  • Established 1975
  • Birmingham trade counter
  • UK-only supply

Written by the West Midlands Electrics technical team

Updated