Geovision BL320-D02U vs Geovision BL34000-002U: Specification Comparison
Both the Geovision BL320-D02U and BL34000-002U are 3MP outdoor bullet IP cameras aimed at perimeter, parking, and entrance deployments. They share the same resolution class, the same bullet form factor, ONVIF compliance, and PoE connectivity, making them genuine cross-shop candidates for integrators evaluating Geovision fixed cameras. The comparison centers on imaging feature depth—particularly WDR, IR night vision, and lens flexibility—alongside environmental ratings, power specifics, and VMS integration breadth.
In This Guide
How do the imaging specs compare?
Both cameras deliver 3MP resolution. The BL34000-002U adds two meaningful imaging features absent from the BL320-D02U's provided specs: Wide Dynamic Range (WDR) for high-contrast scenes such as doorways and loading docks, and built-in IR illumination for low-light and nighttime capture. The BL320-D02U's specifications do not list WDR or IR capability, nor is a minimum illumination figure provided for either model.
The BL34000-002U is also specified with a 3–9mm varifocal lens, giving the installer focal-length adjustment at commissioning to optimize field of view for the specific scene. The BL320-D02U's provided specs do not include a lens or focal-length specification, so no comparison can be drawn on that parameter. No frame-rate, sensor size, or minimum-illumination data is available for either unit from the supplied specifications.
What about installation and environment?
The BL34000-002U carries an IP67 ingress-protection rating, meaning it is fully dust-tight and rated for temporary immersion—one step above the BL320-D02U's IP66 rating, which is fully dust-tight and protected against powerful water jets but not immersion. For exposed eave or bracket mounts subject to driving rain or occasional flooding, IP67 provides an added margin. The BL34000-002U also specifies an operating temperature range of −40°C to 60°C, suitable for harsh climate installations; no operating-temperature figure is provided for the BL320-D02U.
Both cameras are powered via PoE over a single Ethernet cable. The BL34000-002U specifies IEEE 802.3af PoE with a maximum draw under 13W, confirming compatibility with standard 802.3af switches and midspans without requiring higher-wattage 802.3at (PoE+) infrastructure. The BL320-D02U's PoE standard and wattage draw are not specified in the supplied data. The BL34000-002U lists wall, eave, and bracket mounting options; the BL320-D02U lists wall mounting only. The BL34000-002U also notes a 1-meter cable length; no cable-length figure is provided for the BL320-D02U. Neither unit lists an IK impact rating in the provided specifications.
Which fits your VMS and analytics better?
Both cameras support ONVIF, enabling integration with third-party VMS platforms. The BL34000-002U explicitly lists ONVIF Profile S and native compatibility with the Geovision GeoVision platform, providing a documented integration path for installers standardized on either ecosystem. The BL320-D02U lists ONVIF compliance without specifying a profile level or named VMS platform beyond generic ONVIF.
The BL320-D02U specifies two-way audio; the BL34000-002U does not list audio capability in the supplied specifications, so no audio comparison can be confirmed. Neither unit lists edge storage, on-board analytics, or SD card support in the provided specifications. Video compression for the BL320-D02U is listed as H.264; no compression standard is specified for the BL34000-002U in the supplied data.
Which should you choose: the BL320-D02U or the BL34000-002U?
Our take: The BL34000-002U is the stronger choice when night-vision coverage, high-contrast scene handling, or lens adjustability are required. It adds three concrete spec advantages over the BL320-D02U as documented: IR illumination for low-light capture (absent from BL320-D02U specs), WDR for high-contrast entrances and docks (absent from BL320-D02U specs), and a 3–9mm varifocal lens for scene-specific framing (BL320-D02U lens unspecified). Its IP67 rating also exceeds the BL320-D02U's IP66, and its −40°C to 60°C operating range covers extreme climates not confirmed for the BL320-D02U. The BL320-D02U holds one documented advantage: two-way audio, which the BL34000-002U does not list. Installers requiring audio intercom integration or already committed to H.264-only recording infrastructure should verify BL34000-002U codec support before specifying.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Geovision BL320-D02U | Geovision BL34000-002U |
|---|---|---|
| Resolution | 3 MP | 3 MP |
| Form Factor | Bullet | Bullet |
| Lens / Focal Length | — | 3–9mm varifocal |
| WDR | — | WDR |
| IR / Night Vision | — | IR |
| Video Compression | H.264 | — |
| IP Rating | IP66 | IP67 |
| Operating Temperature | — | −40°C to 60°C |
| Power Input / PoE Standard | PoE (standard not specified) | PoE 802.3af |
| PoE Max Wattage | — | Under 13W |
| Mount Types | Wall | Wall; Eave; Bracket |
| Audio | Two-way | — |
| ONVIF | Yes | Yes — Profile S |
| VMS Compatibility | ONVIF | ONVIF Profile S; Geovision GeoVision platform |
| Cable Length | — | 1 meter |
Frequently Asked Questions
Which should you choose: the BL320-D02U or the BL34000-002U?
The BL34000-002U is the stronger choice when night-vision coverage, high-contrast scene handling, or lens adjustability are required. It adds three concrete spec advantages over the BL320-D02U as documented: IR illumination for low-light capture (absent from BL320-D02U specs), WDR for high-contrast entrances and docks (absent from BL320-D02U specs), and a 3–9mm varifocal lens for scene-specific framing (BL320-D02U lens unspecified). Its IP67 rating also exceeds the BL320-D02U's IP66, and its −40°C to 60°C operating range covers extreme climates not confirmed for the BL320-D02U. The BL320-D02U holds one documented advantage: two-way audio, which the BL34000-002U does not list. Installers requiring audio intercom integration or already committed to H.264-only recording infrastructure should verify BL34000-002U codec support before specifying.
Is the BL320-D02U or BL34000-002U better for low-light and nighttime surveillance?
Based on the provided specifications, the BL34000-002U is the documented choice for low-light use—it lists built-in IR illumination. The BL320-D02U's specifications do not include IR capability or a minimum illumination figure, so night-vision performance cannot be confirmed for that model.
Will either camera work with my existing 802.3af PoE switch?
The BL34000-002U is explicitly specified as IEEE 802.3af with a maximum draw under 13W, confirming compatibility with standard 802.3af infrastructure. The BL320-D02U lists PoE connectivity but does not specify the PoE standard or wattage draw in the supplied data—verify with Geovision before deploying on a budget 802.3af switch.
Which camera supports two-way audio?
The BL320-D02U is specified with two-way audio. The BL34000-002U does not list audio capability in the provided specifications, so audio support for that model cannot be confirmed from the available data.
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