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Pelco IMP131-1ERS
Dome Camera with 1.2MP (1280×960) resolution, 74° field of view, and 50m IR night vision range.
SPECIFICATIONS · IMP131-1ERS
Specifications
Verified specifications sourced from the official manufacturer datasheet.
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About the Pelco IMP131-1ERS
The Pelco IMP131-1ERS is a low-profile dome enclosure that blends into ceilings, vandal-resistant by design and harder to tamper with than bullet cameras. 720p HD resolution captures enough detail for basic identification only at close range: on the same lens it reaches about two thirds of the distance a 1080p camera does, and loses face detail beyond that. A 50-80 m IR range turns this into a true night-perimeter camera: open yards, fenced lots, and rural properties become practical use cases without supplemental lighting. 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 8 meters of the mounting point with 74° of horizontal coverage.
Strengths
- •50m IR range eliminates the need for external night-time illuminators
- •Vandal-resistant dome housing harder to tamper with than bullet form factor
Considerations
- •Resolution limits forensic digital zoom; recorded faces beyond ~12m may not be identifiable
Coverage at Different Distances
| Distance | Coverage Width | Coverage Area | Use Case |
|---|---|---|---|
| 5m | 7.5m | 38 m² | Entrance, corridor |
| 10m | 15.1m | 151 m² | Room, retail aisle |
| 15m | 22.6m | 339 m² | Warehouse, parking row |
| 20m | 30.1m | 603 m² | Parking row, courtyard |
| 30m | 45.2m | 1356 m² | Parking lot, yard |
| 50m | 75.4m | 3768 m² | Perimeter, large area |
Field of View Visualization
Night Vision Performance
Daytime
Full 1.2MP (1280×960) resolution at 74° field of view. Effective identification range up to 4m in good lighting conditions.
Nighttime (IR)
Built-in IR LEDs illuminate up to 50m in complete darkness. Switches to B/W mode for clear night footage.
Installation tips for the IMP131-1ERS
Ceiling-mount at 2.5-3.5 m for indoor use; for vandal-prone outdoor locations use a wall mount with the lens facing outward and downward.
Avoid mounting under direct ceiling lights or behind glass: both reflect IR back into the lens and create severe glare in the image.
Coverage geometry & DORI distances
At a 5-metre standoff the Pelco IMP131-1ERS covers about 7.5 m of scene width; at 10 m that grows to 15.1 m, and at 20 m to 30.1 m. Translating those numbers through EN 62676-4 pixel-density thresholds, the camera can detect a person up to 34 m, observe up to 14 m, recognise up to 7 m, and produce Identify-level detail (250 px/m in the EN 62676-4 DORI scale) up to 3 m. Effective range above the identify threshold relies on supplementary lighting or a longer-focal-length optic; the geometry above assumes the 2.8-12mm lens declared by the manufacturer.
Power & cabling
The Pelco IMP131-1ERS draws an estimated 12.0 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 dome 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 dome 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 pricing at 2024-2025 rates; actual quotes vary by region, mounting height, and site conditions. Excludes hardware, transport, permits, and VAT.
Frequently asked questions
Is the Pelco IMP131-1ERS suitable for outdoor installation?
Yes for the IP66/IP67-rated variant of this model. Bullet and dome bodies in the Pelco 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 Pelco IMP131-1ERS?
The camera draws roughly 12.0 W in steady-state operation, requiring an 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 Pelco IMP131-1ERS consume per day?
At 1.2MP (1280×960) resolution, 15 fps H.265 continuous recording, the IMP131-1ERS produces approximately 5 GB per day, about 150 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 Pelco IMP131-1ERS identify a person?
By the DORI thresholds of EN 62676-4 (Identify at 250 px/m on the target, a density the 2025 edition calls Characterise), this camera reaches Identify level up to about 3 m, recognises a person up to 7 m, observes general activity up to 14 m, and detects motion up to 34 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 Pelco IMP131-1ERS use?
Typical ingest is 2 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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