Introduction: Meet the GJD320 D-TECT 60
The GJD320 D-TECT 60 (often referred to as GJD D-TECT 60 External PIR) is a wired external motion detector engineered for long-range perimeter protection. Designed around dual‑pyro (dual PIR) technology and custom optics, the D-TECT 60 produces a long, narrow detection beam with programmable ranges of 40 m or 60 m. Housed in a high‑impact zinc‑alloy enclosure with an IP65 ingress protection rating, this detector is built to withstand outdoor conditions and deliver reliable performance on commercial, industrial and high‑security perimeters.
Key features at a glance:
- Dual PIR sensors for improved detection and reduced false alarms.
- Programmable detection range: 40 m or 60 m.
- Long, narrow coverage up to 60 m × 6 m.
- Pan (180°) and tilt (90°) adjustment for precise alignment.
- Volt‑free solid‑state outputs, tamper contact and walk‑test mode.
- Rugged zinc‑alloy IP65 housing; suitable for outdoor installations.
Detailed specifications and benefits
The D-TECT 60 packs several installer‑friendly and site‑focused specifications that make it appealing for perimeter security projects. Below is a structured breakdown of its principal technical attributes and the practical benefits they deliver.
- Product code:GJD320 (D-TECT 60).
- Category:Wired external motion detector for perimeter applications.
- Compliance:Manufacturer‑stated BS8418 compliance (installers should verify local certification and CE/UKCA where applicable).
- Operating temperature:−20 °C to +55 °C for a wide range of outdoor environments.
- Technology:Dual PIR (dual‑pyro) sensors. Two independent PIR elements improve catch rate while helping to filter environmental noise that commonly causes false alarms.
- Range:Programmable to either 40 m or 60 m, allowing installers to adapt the detector to the layout and threat envelope of the site.
- Coverage:Up to 60 m × 6 m — a long, narrow beam designed to protect perimeters, fences and access corridors rather than broad open areas.
- Fresnel lens & optics:Four-zone custom optics with a silicon shield to create the narrow detection geometry and maintain performance across the full beam.
- Pulse count:Programmable 1–2 pulses to balance sensitivity and false‑alarm resistance for different site conditions.
- Walk test:Output test mode with LED and automatic walk‑test on power up to speed up commissioning.
- LED indicator:Configurable blue LED to assist alignment and diagnostic checks.
- Outputs:Two volt‑free silent solid‑state outputs plus a common tamper switch for front and rear tamper monitoring.
- Power input:9–15 V DC with nominal current around 8 mA at 12 V — low‑power operation that suits many alarm system power supplies.
- Mounting height:Recommended approximately 2.6–3.0 m for optimal detection geometry and to reduce nuisance alarms from small animals.
- Adjustment:Pan 180° and tilt 90° for precise beam aiming across a perimeter line.
- Housing:Durable zinc‑alloy enclosure designed for long term outdoor use.
- Ingress protection:IP65 rated to shed dust and water spray; suitable for exposed external locations.
- Cable guidance:Typical cable runs under 200 m using 8‑core 7/0.2 mm; longer runs can be planned per the manual.
- Dimensions & weight:145 × 120 × 115 mm; approx. 750 g — compact enough for discreet mounting but substantial enough to feel robust.
Practical benefits:The programmable range, dual PIR architecture and adjustable pulse counts give installers flexibility to tune the detector to site conditions and reduce false positives. Silent solid‑state outputs and a tamper contact make it straightforward to integrate with alarm panels and monitoring systems. The zinc‑alloy IP65 housing and wide operating temperature range mean the unit can be relied upon across varied outdoor climates.
Where the D-TECT 60 excels: typical use cases
The D-TECT 60 is a specialist tool in the installer toolkit. Its geometry and feature set make it particularly well suited to the following scenarios:
- Perimeter protection for commercial sites:Factories, warehouses and distribution centres with long fences or boundary lines benefit from the long, narrow detection beam that covers a corridor efficiently without flooding adjacent areas with triggers.
- High‑security installations:Sites where detection reliability is critical — for example, utilities, critical infrastructure and secure compounds — will find the dual‑pyro arrangement and tamper monitoring useful.
- Access lanes and internal boundary lines:Where protection of driveways, service roads or internal corridors is required, the narrow beam reduces nuisance activations caused by movement outside the intended zone.
- Retrofits and monitored sites:The volt‑free outputs and walk‑test features simplify integration into existing alarm systems and make commissioning and maintenance faster for contractors.
How the D-TECT 60 compares with other detector types
When specifying perimeter security, installers often weigh PIR detectors like the D-TECT 60 against alternatives such as active infrared beam systems, microwave/radar sensors and shorter‑range PIRs. Here’s a practical comparison to help select the right technology for the task.
Standard short‑range PIRs are ideal for doorway or small area protection but are not suitable for long perimeter stretches. The D-TECT 60’s long, narrow beam covers tens of metres of linear perimeter with a single unit, reducing the number of sensors needed and lowering installation complexity for long runs.
Active IR beams provide a discrete detection line and are often used where exact intruder location is needed. Beams can be affected by heavy rain, fog or obstructions, and alignment is critical over long distances. The D-TECT 60, as a passive thermal detector, is less susceptible to optical obscuration and offers more tolerance to slight alignment deviations while still providing a continuous detection corridor.
Microwave sensors can cover large volumes and are less affected by temperature, but they can be susceptible to reflections and can be complex to tune in cluttered environments. The D-TECT 60’s PIR approach avoids radio‑frequency interference issues and is often preferred where a clear, narrow detection beam is required rather than broad motion sensing.
Overall, the D-TECT 60 is a strong choice where a long-range, narrow‑beam, low‑maintenance solution is required and where installers prefer a passive, low‑power detector that integrates easily into alarm panels.
Installer feedback and customer impressions
There are no specific public customer reviews supplied with this brief. However, installers and site managers commonly report the following themes when working with long‑range external PIRs like the D-TECT 60 (these points represent common industry feedback rather than verbatim customer testimonials):
- Ease of alignment and the pan/tilt range speeds commissioning and reduces callbacks.
- Dual‑pyro technology and adjustable pulse count are valuable for cutting down nuisance alarms from wildlife and environmental effects.
- Solid‑state outputs and tamper monitoring make system integration predictable and reliable.
- Rugged zinc housing and IP65 rating provide confidence in long‑term outdoor installations, particularly in exposed locations.
If you need verified customer testimonials for procurement or compliance, request case studies or reference installations from the supplier or manufacturer prior to purchase.
Compliance, documentation, pricing and procurement
The manufacturer states BS8418 compliance for the D-TECT 60; installers should confirm all applicable certifications (CE/UKCA where required) and follow the supplied installation manual for EMC, cable routing and safe working practices. Datasheets and installation manuals are available from the manufacturer’s product pages and should be reviewed before specification or installation.
Pricing note:Typical suggested retail pricing for the D-TECT 60 is around 262.62 (suggested price supplied). Cost and warranty information may vary by supplier; no warranty details were supplied here, so confirm warranty terms with the vendor before purchase.
Conclusion: Why choose the GJD320 D-TECT 60?
The GJD320 D-TECT 60 is a focused solution for sites that require long, narrow perimeter detection with dependable, low‑maintenance performance. Its dual PIR sensors, programmable range, configurable pulse counts and generous alignment adjustment give installers the tools to tailor detection to the environment and reduce false alarms. Robust zinc‑alloy construction and IP65 protection make it suitable for exposed external locations, while volt‑free outputs and tamper monitoring simplify integration with modern alarm systems.
For commercial, industrial and higher‑security perimeters where long‑range detection and reliable operation are priorities, the D-TECT 60 offers a compelling balance of sensitivity, durability and installer‑centric features. As always, verify local compliance and request technical documentation and supplier warranties to ensure the product meets project requirements before specification.
