Geovision BL320-D02U vs Geovision BL34100-001U: Specification Comparison
Both the Geovision BL320-D02U and BL34100-001U are 3MP outdoor bullet IP cameras powered over Ethernet and built for perimeter or parking deployments. They share the same resolution class, form factor, and ONVIF compliance, making them genuine cross-shop candidates. The key differentiators lie in lens type—fixed versus motorized zoom—along with IP rating tier, power class, IR/low-light capability, WDR support, and the breadth of certified VMS integrations.
In This Guide
How do the imaging specs compare?
Both cameras deliver 3MP resolution with H.264 compression, so raw pixel count is identical. Beyond that, the specs diverge. The BL34100-001U adds a motorized 3x zoom lens, enabling remote focal-length adjustment after installation—useful when exact coverage angles are uncertain at design time or need to change without a site visit. The BL320-D02U's lens type is not specified in the provided data, so no focal-length figure or zoom ratio can be cited for it.
The BL34100-001U also lists IR night vision and WDR (wide dynamic range) support, making it suited for 24/7 operation in low-light or high-contrast scenes such as entranceways with backlighting. Neither IR range nor minimum illumination values are provided for either model, and no IR or WDR capability is listed for the BL320-D02U, so buyers requiring confirmed low-light or backlight performance have documented evidence only for the BL34100-001U.
What about installation and environment?
The BL320-D02U carries an IP66 rating (dust-tight, protected against powerful water jets), while the BL34100-001U steps up to IP67 (dust-tight, protected against temporary immersion up to 1 m). For most rooftop or wall-mount perimeter installations IP66 is sufficient; IP67 adds margin in flood-prone or wash-down environments. Neither IK impact rating nor operating temperature range is listed for either model, so physical-impact resistance and cold/heat limits cannot be compared.
Power differs meaningfully: the BL320-D02U is specified for standard PoE, while the BL34100-001U requires PoE+ (802.3at). PoE+ draws up to 30 W versus PoE's 15.4 W, so switch port budget and cabling must be verified before deploying the BL34100-001U on an existing PoE-only infrastructure. Both cameras support wall mounting; the BL34100-001U additionally lists ceiling mounting as a supported orientation.
Which fits your VMS and analytics better?
Both cameras are ONVIF-compliant, ensuring baseline compatibility with any ONVIF-conformant NVR or VMS. The BL34100-001U goes further with documented certification for Geovision GV NVR, Milestone XProtect, and Axis Camera Station—three of the most widely deployed VMS platforms in commercial and enterprise installations. The BL320-D02U lists ONVIF as its only stated VMS compatibility; no third-party platform certifications are specified in the provided data.
The BL320-D02U lists two-way audio support, which the BL34100-001U does not mention in the provided specifications. Buyers needing intercom, voice-down deterrence, or audio logging should note this gap. Neither model lists on-board edge storage (SD card) or edge analytics capabilities in the provided specs, so those features cannot be confirmed for either unit.
Which should you choose: the BL320-D02U or the BL34100-001U?
Our take: The BL34100-001U is the stronger choice when deployment conditions demand flexibility, low-light coverage, and broad VMS certification. Its motorized 3x zoom eliminates post-install site visits for focal adjustment, its IP67 rating exceeds the BL320-D02U's IP66 by one immersion-protection tier, and it carries verified compatibility with Milestone and Axis Camera Station beyond generic ONVIF. However, it requires PoE+ rather than standard PoE, which adds switch infrastructure cost. The BL320-D02U is appropriate for fixed-angle, well-lit scenes on standard PoE switches where two-way audio is required—it is the only model with audio specified—and its simpler feature set may suit tighter budgets. Lens type, operating temperature, and IR range are unspecified for the BL320-D02U, limiting side-by-side technical validation.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Geovision BL320-D02U | Geovision BL34100-001U |
|---|---|---|
| Resolution | 3 MP | 3 MP |
| Form Factor | Bullet | Bullet |
| Lens Type | — | Motorized 3x zoom |
| Video Compression | H.264 | H.264 |
| IR / Night Vision | — | IR |
| WDR | — | WDR |
| IP Rating | IP66 | IP67 |
| Power Input | PoE (802.3af) | PoE+ (802.3at) |
| Mount Type | Wall | Wall; Ceiling |
| Audio | Two-way | — |
| ONVIF | Yes | Yes |
| VMS Compatibility | ONVIF | ONVIF; GV NVR; Milestone; Axis Camera Station |
| Datasheet | — | Yes (provided) |
Frequently Asked Questions
Which should you choose: the BL320-D02U or the BL34100-001U?
The BL34100-001U is the stronger choice when deployment conditions demand flexibility, low-light coverage, and broad VMS certification. Its motorized 3x zoom eliminates post-install site visits for focal adjustment, its IP67 rating exceeds the BL320-D02U's IP66 by one immersion-protection tier, and it carries verified compatibility with Milestone and Axis Camera Station beyond generic ONVIF. However, it requires PoE+ rather than standard PoE, which adds switch infrastructure cost. The BL320-D02U is appropriate for fixed-angle, well-lit scenes on standard PoE switches where two-way audio is required—it is the only model with audio specified—and its simpler feature set may suit tighter budgets. Lens type, operating temperature, and IR range are unspecified for the BL320-D02U, limiting side-by-side technical validation.
Is the BL320-D02U or BL34100-001U better for low light?
Based on the provided specifications, only the BL34100-001U lists IR night vision and WDR support. The BL320-D02U does not have IR or WDR noted in its specs, so the BL34100-001U is the documented choice for low-light or high-contrast scenes. Minimum illumination figures are not provided for either model.
Will either camera work on my existing PoE switch?
The BL320-D02U operates on standard PoE (802.3af, up to 15.4 W per port), compatible with most existing PoE switches. The BL34100-001U requires PoE+ (802.3at, up to 30 W per port). If your switch only supports standard PoE, only the BL320-D02U is confirmed compatible without infrastructure upgrades.
Which camera integrates with Milestone or Axis Camera Station?
The BL34100-001U is explicitly listed as compatible with Milestone XProtect, Axis Camera Station, and Geovision GV NVR in addition to ONVIF. The BL320-D02U lists ONVIF compliance only; no named third-party VMS certifications are specified in the provided data.
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