Bosch Dome 5MP 3.3-10.2mm IP66 IK10 IR I/O. - NDE-3703-AL-IO

Bosch NDE-3703-AL-IO 5MP Varifocal IR Dome with Alarm I/O

Overview

The Bosch NDE-3703-AL-IO is a 5MP outdoor dome camera built for installations where a single unit needs to cover variable distances — lobbies, parking structures, building perimeters, and covered loading docks. The 3.3–10.2mm motorized varifocal lens gives installers a 101° wide-angle sweep at the short end and a tightened 30° at full zoom, so you can dial coverage to the scene rather than pulling cable to a second camera. Pair that with IP66 weather sealing and IK10 vandal resistance, and you have a fixture that handles both outdoor exposure and deliberate impact without requiring a separate housing. Alarm I/O lines make it a natural fit for sites that need edge-triggered responses — door contacts, motion relays, or external sensor integration — without routing everything back to a controller.

Key Features

• 5MP 2592×1944 Resolution: At 5 megapixels, you're getting roughly 2.5× the pixel density of 1080p. In practice, that's the difference between identifying a face at 20 feet and identifying a license plate at the same distance — relevant on any scene where evidence quality matters.
• 3.3–10.2mm Varifocal Lens (F1.6–F3.29): The wide F1.6 aperture at the short end pulls in more light per frame. Horizontal field of view runs 101.4° down to 30.1°, giving a single SKU the flexibility to serve both wide-area and narrow-corridor installs. Search variation: NDE-3703-AL-IO (often searched as NDE 3703 AL IO).
• 120dB Dynamic Range: 120dB WDR handles scenes with extreme contrast — sunlit glass storefronts, mixed-light parking decks, entry vestibules with bright exterior and dim interior — without blowing out highlights or crushing shadows. If you've dealt with glare-washed entrance footage before, this is the spec that fixes it.
• 30m / 98ft IR with Adjustable Intensity: Built-in 850nm IR illumination reaches 30 meters and can be tuned manually, so you can match output to the scene rather than over-illuminating short-range targets and washing out detail. Minimum illumination drops to 0 lux with IR active.
• Alarm I/O (1 In / 1 Out): One alarm input and one alarm output let you wire this camera directly into door contacts, PIR sensors, or relay-controlled outputs. Edge-triggered recording or external device activation without an additional controller in the loop.
• H.265/HEVC Compression: H.265 cuts storage and bandwidth roughly in half compared to H.264 at equivalent quality — meaningful across a 24/7 multi-camera deployment. MJPEG remains available for legacy VMS integrations that can't handle modern codecs.
• ONVIF Profiles S, G, M, T: All four active profiles mean this camera integrates cleanly with any ONVIF-compliant VMS — Milestone, Genetec, Avigilon, or any platform supporting Profile T for metadata and analytics streams.
• IP66 + IK10 Ratings: IP66 seals out direct rain and dust ingress; IK10 is the highest vandal-resistance rating, rated for 20-joule impacts. Both ratings in a single unit means no separate vandal cage or housing for high-exposure installations.
• PoE 802.3af Class 3 (4.5–7.9W): Draws under 8W at peak via standard 802.3af — well within the 15.4W budget of a Class 3 port. No PoE+ switch required, no separate power supply, and no significant strain on a shared PoE budget across dense deployments.
• -40°C to 60°C Operating Range: This temperature range covers outdoor installs in northern climates through summer heat in unconditioned spaces. Most competing domes in this class bottom out at -20°C or -30°C — this one doesn't need a heater enclosure in cold regions.

Integration and Compatibility

ONVIF Profile S, G, M, and T conformance covers the full spectrum of VMS integration requirements. Profile G supports edge recording, which works with the camera's alarm I/O to trigger local clip retention on external events. Audio line in (0.6 Vrms max) and line out (1 Vrms at 10 kOhm) support optional two-way audio without an additional audio module. The camera accepts both PoE (802.3af/at Type 1) and 24 VAC ±10% — useful when retrofitting into existing analog infrastructure with local transformers already in place.

Frequently Asked Questions

Q: What is the IR range on the NDE-3703-AL-IO?

A: The built-in IR illuminator reaches 30 meters (98 feet) at 850nm. Intensity is manually adjustable, and the camera drops to 0 lux minimum illumination with IR active.

Q: Does the NDE-3703-AL-IO require PoE+ or will standard PoE work?

A: Standard PoE (IEEE 802.3af Class 3) is sufficient. Maximum PoE draw is 7.9W, well within the 15.4W Class 3 budget. No PoE+ switch is required.

Q: What ONVIF profiles does the NDE-3703-AL-IO support?

A: It supports ONVIF Profile S, G, M, and T — covering standard streaming (S), edge storage (G), metadata (M), and advanced streaming with analytics (T).

Q: Can the NDE-3703-AL-IO handle extreme cold weather installations?

A: Yes. The operating temperature range is -40°C to 60°C (-40°F to 140°F), covering outdoor installations in harsh northern climates without a supplemental heater enclosure.

Q: What alarm I/O does the NDE-3703-AL-IO provide?

A: One alarm input and one alarm output. This allows direct wiring to door contacts, PIR sensors, or relay outputs for edge-triggered recording or device control.

Q: Does the NDE-3703-AL-IO support 24 VAC power in addition to PoE?

A: Yes. It accepts both IEEE 802.3af PoE and 24 VAC ±10%, making it compatible with existing transformer-based infrastructure in retrofit projects.

Marty Allison

The spec I keep coming back to on the NDE-3703-AL-IO is the -40°C floor on operating temperature. Most outdoor domes in this resolution class bottom out at -20°C or -30°C — fine for moderate climates, but a real problem for rooftop or parking deck installs in northern regions. This one doesn't need a heated enclosure, which saves both hardware cost and a failure point in the field.

Technical Highlights:

• 120dB Dynamic Range: At 120dB, this camera handles mixed-lighting scenes that would wash out or crush detail on a standard WDR unit. Entry vestibules and glass-front retail are the classic use cases — bright exterior, dim interior, and a camera that needs to render both simultaneously.
• 3.3–10.2mm Varifocal at F1.6: The F1.6 aperture at the wide end is meaningfully faster than F2.0 competitors — that translates directly to usable color detail in low-ambient conditions before IR kicks in. Horizontal FOV spans 101° to 30°, so one SKU covers wide-area and corridor installs.
• Alarm I/O Integration: One input, one output. On a perimeter install, you wire a door contact to the input and trigger a relay (gate, strobe, lock) from the output — all at the edge, no round-trip to a controller required. Reduces latency and simplifies the panel design.

Deployment Considerations:

• PoE draw peaks at 7.9W — plan your switch port budget with that ceiling, not the 4.5W idle figure. On a dense 24-port PoE switch with a shared 150W budget, the difference between idle and active IR load across 16+ cameras matters.
• The camera body is compact (90.7mm diameter) but the mounting footprint depends on the accessory bracket chosen — Bosch offers surface, pendant, and in-ceiling mounts separately. Confirm the mounting accessory before closing out the bill of materials on a new project.

The NDE-3703-AL-IO earns its place on outdoor perimeter and parking structure projects where you need IK10 vandal resistance, genuine cold-weather reliability, and alarm I/O at the edge — without specifying a separate housing or controller to cover those gaps.