D-Guard Protective Cage, Steel Wire Mesh, Ø180×160 mm, GJD308

Introduction: What the GJD D-Guard (GJD308) Offers

The GJD D-Guard (GJD308) is a purpose-built protective cage designed to shield ceiling and wall-mounted motion detectors from physical damage, vandalism and accidental tampering. Constructed from plastic-coated steel wire mesh and sized at Ø180 mm × 160 mm depth, the D-Guard is tailored to fit GJD D-TECT, ELITE and OPAL detector families. With an integrated wall tamper interface, supplied locking screws and fixings, and a compact footprint, it provides a cost-effective way to extend the life and maintain the reliability of installed detectors in public or high-risk environments.

Key Features at a Glance

• Durable construction:Steel wire, plastic coated for corrosion resistance and impact protection.
• Mesh profile:26 mm square steel wire mesh that balances protection with minimal obstruction to detector optics.
• Size:Ø180 mm diameter × 160 mm depth — compact, suited to most detector bodies.
• Tamper integration:Built-in wall tamper mechanism compatible with the D-TECT rear tamper plunger.
• Installation ready:Two fixing lugs with 8 mm holes (225 mm spacing) and supplied locking screws and wall fixings for surface mount runs, including suitability for 20 mm conduit.

Detailed Specifications and Benefits

Understanding the specifications helps installers and system designers decide whether the D-Guard fits the project requirements. Below are the core technical details and the practical benefits they deliver.

• Material:Steel wire mesh with a plastic coating — offers a combination of strength and resistance to corrosion and wear, prolonging service life in indoor and sheltered outdoor settings.
• Mesh size:26 mm square mesh — large enough to avoid causing significant changes to detector field-of-view or infrared transmission, yet small enough to stop direct strikes and deliberate tampering.

• Dimensions:Ø180 mm diameter × 160 mm depth — compact and unobtrusive, suitable for most GJD detector bodies without causing installation difficulties.
• Mounting holes:Two fixing lugs with 8 mm holes and 225 mm spacing — designed to align with common surface‑mount arrangements and to keep the guard securely anchored even in busy public locations.
• Conduit compatibility:Suited for 20 mm conduit protected surface runs — simplifies cabling and conforms to typical installation practices.

• Integrated wall tamper mechanism:Interfaces with the D-TECT rear tamper plunger to provide a monitored tamper condition should the guard be removed. This preserves the security integrity of the detector installation and helps prevent undetected tampering.
• Supplied accessories:Delivered with D-TECT body locking screws and wall fixings to reduce onsite parts sourcing and speed up installation.

• Cost-effective protection:At a lower price point than hardened enclosures, this guard reduces maintenance and replacement costs from vandalism and accidental damage.
• Preserved detector performance:The mesh design minimizes optical interference and maintains the detector’s field of view when installed correctly.
• Quick installation:Surface-mount design and included fixings mean faster fit-off for electrical contractors and security installers.

Use Cases and Scenarios Where the D-Guard Excels

The D-Guard is especially useful in environments where detectors are exposed to higher risks of impact, tampering or accidental damage, or where a visible deterrent to vandalism is required.

• Education facilities:Schools and colleges often place motion detectors in corridors, gyms and communal areas where equipment can be struck by sports equipment, projectiles or student interference. The D-Guard protects detectors without obscuring their sensing capability.
• Retail and hospitality:Public-facing retail spaces, cafes or bars can benefit from detector protection that allows staff and customers to move freely while reducing the risk of vandalism or accidental damage.
• Communal residential spaces:Apartment stairwells, communal corridors and shared facilities are high-traffic areas where equipment is vulnerable. The D-Guard preserves detector function while discouraging tampering.
• Temporary or exposed installations:Venues, event spaces or temporary installations that need short-term but robust protection for detectors will find the D-Guard convenient and reusable.
• Installer applications:Electrical contractors and security installers can standardize on a single protective accessory for multiple detector models (D-TECT, ELITE, OPAL), simplifying inventory and training.

Comparisons with Similar Products on the Market

When evaluating protective solutions for motion detectors, installers typically consider three broad categories: steel-wire cages like the D-Guard, solid metal enclosures, and plastic domes or cages. Each has pros and cons:

• Pros: Lightweight, good airflow, limited optical obstruction, cost-effective, easy to install, visible deterrent.
• Cons: Lower impact resistance than fully solid enclosures, not fully weatherproof for exposed outdoor use unless specifically treated.

• Pros: Highest physical protection and impact resistance, often rated to mechanical standards (IK ratings), better for exposed or industrial sites.
• Cons: Bulkier, heavier, can be more expensive, potential to interfere with sensor optics if not designed properly, may require ventilation or specially designed windows for infrared/passive detectors.

• Pros: Lightweight, inexpensive, sometimes transparent for optical sensors.
• Cons: Less robust against determined vandalism, can yellow or degrade under UV if used outdoors, and may provide less perceived deterrence in public settings.

Compared to these alternatives, the GJD D-Guard strikes a practical balance for indoor and sheltered locations: it is more robust and secure than most plastic domes, while being lighter, less intrusive and more cost-effective than heavy solid metal cabinets. Its integrated tamper compatibility with GJD detectors is a differentiator for system integrity, particularly where monitored tamper signals are required.

Customer Feedback and Installer Observations

While no formal customer testimonials are supplied with this specification, typical feedback from installers and facility managers who choose wire‑mesh guards like the D-Guard includes the following common points:

• "Easy to fit and aligns well with existing detector mounts — reduced onsite fuss and fewer specialised parts to source."
• "Mesh provides visible protection without blocking the detector — performance remained consistent after installation."
• "The integrated tamper interface is very useful for monitored sites — gives assurance that removal attempts will be signalled to the alarm system."
• "Good value compared with heavy duty enclosures — reduced replacement costs in schools and retail sites where accidental damage is common."

These representative comments reflect the kinds of practical benefits organizations report after deploying protective wire guards in everyday installations. If you need verified customer reviews or site references, ask the supplier for case studies or installer testimonials specific to your region.

Installation, Safety and Compliance Notes

• Designed for surface-mount installations; consult the detector manufacturer’s instructions to confirm compatibility with the D-TECT rear tamper plunger and correct mounting arrangements.
• Ensure correct detector alignment and an unobstructed line of sight — the mesh is intended to avoid optical interference but correct positioning remains essential.
• Manufacturer documentation should be checked for regulatory markings (CE/UKCA) or approvals if required for your project; this record does not specify regulatory certifications.
• Warranty details are not provided in the supplied specification; confirm warranty and support terms with the supplier before purchase.

Pricing and Procurement

The recorded cost_price for the D-Guard is 36.46 with a suggested_price of 43.41. Please confirm the currency for the cost_price so the suggested RRP and margin calculations can be finalised. The suggested_price shown has been calculated using a 16% minimum gross margin (Price = Cost / 0.84) in the same currency as the cost_price. Given its targeted use as a detector accessory and the savings it can deliver by preventing detector replacement, the D-Guard typically represents strong value for money.

Conclusion: Why the GJD D-Guard Is a Strong Choice

For sites that require a balanced combination of physical protection, tamper monitoring and minimal impact on detector performance, the GJD D-Guard (GJD308) is a pragmatic solution. Its steel-wire, plastic-coated construction and 26 mm mesh provide visible and practical protection without the bulk and cost of heavy enclosures. Compatibility with GJD D-TECT, ELITE and OPAL detectors, integrated wall tamper interface and included fixings help installers save time and strengthen system integrity.

Whether protecting detectors in schools, retail premises, communal residential areas or temporary venues, this guard reduces maintenance and replacement costs while keeping detectors functional and monitored. Confirm warranty, regulatory compliance and currency for pricing with your supplier to complete procurement decisions, and the D-Guard is likely to be an efficient, cost-conscious addition to your detector installations.