CCTVPLANNER.IO · CAMERA · GRUNDIG SECURITY
Grundig Security GD-CI-BT8637TX
Bullet Camera with 8.3MP (3840×2160) resolution, 51° field of view, and 0m IR night vision range.
SPECIFICATIONS · GD-CI-BT8637TX
Specifications
Verified specifications sourced from the official manufacturer datasheet.
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About the Grundig Security GD-CI-BT8637TX
The Grundig Security GD-CI-BT8637TX is a weather-sealed bullet housing optimized for perimeter, parking, and exterior building installations. At 8MP the camera covers more area per device while preserving enough pixels-per-meter for legal evidence quality at typical installation distances. There is no built-in IR illuminator on this model, so it depends entirely on ambient light. In dark environments, pair it with external IR floods or white-light illuminators. A standard 50–80° horizontal FOV mimics how a person sees a scene and works well for general-purpose monitoring of rooms, parking spaces, and perimeter walls without distortion.
Best use cases for this camera
General surveillance
Suited to general-purpose monitoring tasks within 32 meters of the mounting point with 51° of horizontal coverage.
Strengths
- •8.3MP sensor preserves detail under digital zoom on recorded footage
- •32m effective range supports outdoor perimeter and parking-lot deployments
Considerations
- •No built-in IR — requires external illumination for night use
- •Higher resolution increases storage and bandwidth requirements proportionally — verify NVR capacity
Coverage at Different Distances
| Distance | Coverage Width | Coverage Area | Use Case |
|---|---|---|---|
| 5m | 4.8m | 24 m² | Entrance, corridor |
| 10m | 9.5m | 95 m² | Room, retail aisle |
| 15m | 14.3m | 215 m² | Warehouse, parking row |
| 20m | 19.1m | 382 m² | Parking row, courtyard |
| 30m | 28.6m | 859 m² | Parking lot, yard |
| 50m | 47.7m | 2385 m² | Perimeter, large area |
Field of View Visualization
Night Vision Performance
Daytime
Full 8.3MP (3840×2160) resolution at 51° field of view. Effective identification range up to 16m in good lighting conditions.
Nighttime (IR)
Built-in IR LEDs illuminate up to 0m in complete darkness. Switches to B/W mode for clear night footage.
Installation tips for the GD-CI-BT8637TX
Mount at 4–6 m height angled 10–20° downward — high enough to deter tampering, low enough to preserve face detail at 22m.
Plan storage at roughly 33 GB per camera per day for continuous H.265 recording at 15fps — verify NVR has sufficient HDD bay capacity.
Coverage geometry & DORI distances
At a 5-metre standoff the Grundig Security GD-CI-BT8637TX covers about 4.8 m of scene width; at 10 m that grows to 9.5 m, and at 20 m to 19.1 m. Translating those numbers through EN 62676-4 pixel-density thresholds, the camera can detect a person up to 161 m, observe up to 64 m, recognise up to 32 m, and produce identification-grade detail (the ≥250 px/m bar used by Polish and EU courts as evidentiary) up to 16 m. Effective range above the identify threshold relies on supplementary lighting or a longer-focal-length optic — the geometry above assumes the 5-50mm lens declared by the manufacturer.
Power & cabling
The Grundig Security GD-CI-BT8637TX draws an estimated 5.5 W under typical load (with the IR illuminator engaged where applicable), placing it in the 802.3af (Class 3, ≤15.4 W) budget. A single switch port supplies enough power without an injector. Cabling: stick to Cat6 STP for runs up to 100 m end-to-end — beyond that, add an inline PoE extender or move to fibre with a media converter at the camera end. On outdoor runs, route through ø25 PVC or PE conduit to keep the cable shielded from UV and rodents.
Privacy & legal (GDPR / RODO)
Any camera operating in a publicly accessible area falls under GDPR (RODO in Poland) — Art. 13 obliges the data controller to post an information sign at every entry point with controller name, DPO contact, lawful basis (typically Art. 6(1)(f) legitimate interest for property protection), purpose, and retention period. Even a narrowly-aimed bullet camera can incidentally record passers-by, so the Art. 13 sign at the entry point applies regardless of how tightly the lens is framed.
Installer time & cost (rough estimate)
A typical EU installer quotes 3–4 h of labour per bullet camera of this class (approximately €135–€185 excluding hardware), broken down as bracket mounting, cable termination at both ends, on-site commissioning, and a brief operator handover. Allow extra time for high mounts (>4 m), exterior installations requiring scaffolding, or sites where cable routing demands wall penetrations or conduit work.
Indicative EU 2024-2025 pricing — actual quotes vary by region, mounting height, and site conditions. Excludes hardware, transport, permits, and VAT.
Frequently asked questions
Is the Grundig Security GD-CI-BT8637TX suitable for outdoor installation?
Yes for the IP66/IP67-rated variant of this model. Bullet and dome bodies in the Grundig Security range survive direct rain, snow and UV; check the IP / IK rating against your environment (IP66 for rain/dust, IK10 for vandal-prone locations).
What PoE class powers the Grundig Security GD-CI-BT8637TX?
The camera draws roughly 5.5 W in steady-state operation, requiring a 802.3af (Class 3, ≤15.4 W) switch port. A single Cat6 STP cable carries both data and power up to 100 m — beyond that, add an inline extender or convert to fibre near the camera.
How much storage does the Grundig Security GD-CI-BT8637TX consume per day?
At 8.3MP (3840×2160) resolution, 15 fps H.265 continuous recording, the GD-CI-BT8637TX produces approximately 33 GB per day — about 990 GB per month. Motion-only or event-triggered recording typically cuts that by 40–70 % depending on scene activity. Plan NVR HDD capacity for the longest retention period required by your privacy policy or insurance contract.
Up to what distance can the Grundig Security GD-CI-BT8637TX identify a person?
Per EN 62676-4:2025 pixel-density thresholds, this camera identifies (≥ 250 px/m on the target) up to about 16 m, recognises a person up to 32 m, observes general activity up to 64 m, and detects motion up to 161 m. Identification distance assumes daylight or full IR illumination on the target — at the limits of the IR cone the effective identify distance shrinks roughly 30 %.
What network bandwidth does Grundig Security GD-CI-BT8637TX use?
Typical ingest is 12 Mbps for the main stream (H.265, medium scene complexity, 15 fps) plus ~0.5 Mbps for a low-resolution sub-stream used by mobile clients. For a 16-camera installation of this class, plan a 50–100 Mbps NVR uplink and a dedicated VLAN for camera traffic.
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