Geovision BL34000-002U vs Geovision BL3700: Specification Comparison
Both the Geovision 84-BL34000-002U and the GV-BL3700 are 3MP fixed bullet IP cameras from Geovision, each featuring varifocal lenses in the 3–9mm range, WDR, and IR night vision — making them direct cross-shop candidates for perimeter and general-surveillance installations. This comparison examines how their imaging capabilities, installation requirements, and VMS integration differ based strictly on the specifications provided for each model.
In This Guide
How do the imaging specs compare?
Both cameras deliver 3MP resolution with WDR and IR-assisted night vision, so their baseline image output is equivalent on those three dimensions. The 84-BL34000-002U uses a 3–9mm varifocal lens; the GV-BL3700 also covers 3–9mm but is specified as a P-Iris lens, which provides more precise iris control for better depth of field and exposure management in scenes with variable light. The GV-BL3700 additionally lists a 'Super Low Lux' minimum illumination rating, indicating improved low-light sensitivity; no minimum illumination figure is specified for the 84-BL34000-002U.
On compression, the GV-BL3700 explicitly supports H.265, which can reduce bandwidth and storage requirements by approximately 50% versus H.264. The 84-BL34000-002U provides no compression codec specification in the supplied data. Neither product lists an IR distance, maximum frame rate, or image sensor size in the provided specs, so those comparisons cannot be made.
What about installation and environment?
The 84-BL34000-002U carries an IP67 ingress-protection rating, meaning it is fully dust-tight and rated for temporary immersion — suitable for exposed outdoor mounts subject to heavy rain or wash-down. No IP rating is specified for the GV-BL3700, so its environmental sealing level cannot be confirmed from the provided data. The 84-BL34000-002U also states an operating temperature range of −40°C to 60°C, covering extreme cold and heat; no operating temperature is listed for the GV-BL3700.
Power delivery also differs: the 84-BL34000-002U specifies PoE 802.3af and draws under 13W maximum, allowing use with standard 802.3af switches without a PoE+ budget. No power specification is provided for the GV-BL3700. Mounting options are similar — both support wall and bracket mounting — though the 84-BL34000-002U adds eave mounting while the GV-BL3700 lists pole mounting; these are complementary rather than meaningfully differentiating.
Which fits your VMS and analytics better?
Both cameras declare ONVIF compatibility. The 84-BL34000-002U specifies ONVIF Profile S compliance and adds explicit support for the Geovision GeoVision VMS platform. The GV-BL3700 lists ONVIF without a named profile tier, and no specific VMS platform integrations are documented in the provided specs beyond that standard. Neither model lists edge analytics, on-board storage, audio input/output, or alarm I/O in the supplied specifications, so those features cannot be compared.
Which should you choose: the BL34000-002U or the BL3700?
Our take: The 84-BL34000-002U is the stronger choice when installation environment and power-source certainty are the primary concerns: it carries a confirmed IP67 rating (vs. no rating stated for the GV-BL3700), a validated operating range of −40°C to 60°C (no equivalent spec for the GV-BL3700), and an explicit 802.3af PoE draw under 13W (no power spec for the GV-BL3700). Conversely, the GV-BL3700 is the stronger choice when storage efficiency and low-light sensitivity are prioritized: it specifies H.265 compression (no codec listed for the 84-BL34000-002U) and a Super Low Lux minimum illumination rating (absent on the 84-BL34000-002U). Buyers running the Geovision GeoVision VMS platform have an explicitly confirmed integration path with the 84-BL34000-002U. Where codec and low-light specs are present for the GV-BL3700 but absent for its counterpart, verify those gaps against the datasheets before finalizing.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Geovision BL34000-002U | Geovision BL3700 |
|---|---|---|
| Resolution | 3 MP | 3 MP |
| Form Factor | Bullet | Bullet |
| Lens / Focal Length | 3–9mm varifocal | 3–9mm P-Iris |
| Min Illumination | — | Super Low Lux |
| IR Night Vision | Yes | Yes |
| WDR | Yes | Yes |
| Video Compression | — | H.265 |
| IP Rating | IP67 | — |
| Operating Temperature | −40°C to 60°C | — |
| Power Input / PoE | PoE 802.3af, under 13W | — |
| ONVIF | Yes — Profile S | Yes |
| VMS Compatibility | ONVIF Profile S; Geovision GeoVision | ONVIF |
| Mount Types | Wall; Eave; Bracket | Wall; Pole |
Frequently Asked Questions
Which should you choose: the BL34000-002U or the BL3700?
The 84-BL34000-002U is the stronger choice when installation environment and power-source certainty are the primary concerns: it carries a confirmed IP67 rating (vs. no rating stated for the GV-BL3700), a validated operating range of −40°C to 60°C (no equivalent spec for the GV-BL3700), and an explicit 802.3af PoE draw under 13W (no power spec for the GV-BL3700). Conversely, the GV-BL3700 is the stronger choice when storage efficiency and low-light sensitivity are prioritized: it specifies H.265 compression (no codec listed for the 84-BL34000-002U) and a Super Low Lux minimum illumination rating (absent on the 84-BL34000-002U). Buyers running the Geovision GeoVision VMS platform have an explicitly confirmed integration path with the 84-BL34000-002U. Where codec and low-light specs are present for the GV-BL3700 but absent for its counterpart, verify those gaps against the datasheets before finalizing.
Is the BL34000-002U or BL3700 better for low light?
Based on the provided specifications, the GV-BL3700 has an advantage: it lists a 'Super Low Lux' minimum illumination rating, indicating enhanced sensitivity in low-light conditions. No minimum illumination figure is specified for the 84-BL34000-002U, so a direct numerical comparison cannot be made. Both cameras include IR night vision, but IR range is not specified for either model.
Which camera will save more storage — the BL34000-002U or the BL3700?
The GV-BL3700 specifies H.265 compression, which typically reduces bandwidth and storage consumption by approximately 50% compared to H.264. No video compression standard is listed in the provided specifications for the 84-BL34000-002U, so it is not possible to confirm its codec or quantify a storage comparison from the available data. Confirm the 84-BL34000-002U codec in its datasheet before projecting storage requirements.
Can I use either camera in sub-zero outdoor temperatures?
The 84-BL34000-002U is rated for operation from −40°C to 60°C, covering severe cold-climate installations. No operating temperature range is provided in the available specifications for the GV-BL3700, so its suitability for sub-zero environments cannot be confirmed from the supplied data. Consult the GV-BL3700 datasheet directly for that information before deploying in cold environments.
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