Geovision BX520-D01U vs i-PRO S1550L: Specification Comparison
Both the Geovision BX520-D01U and the i-PRO WV-S1550L are 5MP fixed box-type IP cameras aimed at professional installations requiring high-resolution detail capture. A buyer evaluating either for an outdoor perimeter, parking structure, or commercial entrance would reasonably cross-shop these two. The comparison covers imaging performance, physical deployment considerations, and integration with VMS and analytics platforms, drawing strictly from the specifications provided for each model.
In This Guide
How do the imaging specs compare?
Both cameras deliver 5MP resolution, but the i-PRO WV-S1550L provides substantially more imaging data. The S1550L uses a 1/2.8-inch high-sensitivity CMOS sensor with a minimum illumination of 0.0044 lx (color) and 0.003 lx (B&W with active IR), an integrated motorized 2.9–9mm varifocal lens with 3.1x optical zoom, a rated IR range of 40 meters, and a 120dB Super Dynamic WDR. It also delivers a specified 30 fps frame rate. The Geovision BX520-D01U lists 5MP resolution and a varifocal 4.5–10mm F1.6–F4.5 lens, but its sensor size, minimum illumination figure, WDR capability, and maximum frame rate are not specified in the provided data.
On IR performance, the S1550L's 40-meter active IR range with a 0.003 lx B&W floor is a concrete, verifiable figure. The BX520-D01U is described as Day/Night but no IR range, IR lux floor, or WDR rating is listed in its specifications. Buyers needing low-light or backlit-scene performance have measurable data only for the S1550L from the specs provided.
What about installation and environment?
The i-PRO WV-S1550L carries IP66 ingress protection and IK10 vandal resistance ratings, making it rated for direct outdoor exposure and for installations where physical impact is a risk. Its PoE class is listed as Class 0 (802.3af compatible), and its mount options span wall, ceiling, pole, corner, and rack. Operating temperature is not specified in the provided data. The Geovision BX520-D01U has no IP rating, IK rating, or operating temperature listed in its specifications, and its 13W power draw is within 802.3af limits. Its mount options are wall and ceiling only. The stainless color finish is noted but does not constitute an environmental rating.
For any outdoor or exposed installation, the S1550L's IP66/IK10 ratings are verified spec values; the BX520-D01U cannot be confirmed as outdoor-rated from the data provided. Installers must verify housing suitability for the BX520-D01U independently if outdoor deployment is intended.
Which fits your VMS and analytics better?
The i-PRO WV-S1550L specifies ONVIF Profile S compliance, H.265/H.264/MJPEG compression, VMD (Video Motion Detection) analytics, audio input/output with AAC-LC at 64/96/128 kbps, and encrypted MicroSD edge recording. It also carries FIPS 140-2 CAVP certification with full end-to-end encryption including SD card encryption—a meaningful differentiator for government, healthcare, or compliance-driven deployments. The Geovision BX520-D01U lists ONVIF Profile S compliance and Ethernet connectivity, but its compression formats, analytics capabilities, audio support, and edge storage options are not specified in the provided data.
On cybersecurity posture, the S1550L's FIPS 140-2 module and HTTPS encryption are explicitly documented. Neither encryption standards nor cybersecurity certifications are listed for the BX520-D01U in the specs provided. For VMS platforms requiring ONVIF Profile S, both cameras qualify; for platforms or contracts requiring FIPS-validated encryption, only the S1550L has a documented basis for that claim.
Which should you choose: the BX520-D01U or the S1550L?
Our take: The WV-S1550L is the stronger choice when the deployment requires verified outdoor durability, low-light performance, or compliance-grade cybersecurity. Across every key differentiating spec, the S1550L provides concrete numbers while the BX520-D01U does not: the S1550L carries IP66/IK10 environmental ratings versus no rating documented for the BX520-D01U; it specifies a 0.003 lx B&W minimum illumination and 40-meter IR range versus no IR or lux figures for the BX520-D01U; and it includes 120dB Super Dynamic WDR versus no WDR rating documented for the BX520-D01U. The BX520-D01U's slightly wider focal range (4.5–10mm vs. 2.9–9mm) may suit certain framing scenarios, and its stainless finish may fit specific aesthetic requirements. However, for any outdoor, vandal-risk, or regulated environment, the S1550L is the only model here with a documented specification basis to support that deployment.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | Geovision BX520-D01U | i-PRO S1550L |
|---|---|---|
| Resolution | 5 MP | 5 MP |
| Image Sensor | — | 1/2.8-inch High-Sensitivity CMOS |
| Lens / Focal Length | Varifocal 4.5–10mm, F1.6–F4.5 | Motorized varifocal 2.9–9mm (3.1x optical zoom) |
| Min Illumination (Color) | — | 0.0044 lx |
| Min Illumination (B&W / IR) | — | 0.003 lx |
| IR Range | — | 40 meters |
| Wide Dynamic Range | — | 120dB Super Dynamic WDR |
| Max Frame Rate | — | 30 fps |
| Video Compression | — | H.265 / H.264 / MJPEG |
| IP Rating | — | IP66 |
| IK / Vandal Rating | — | IK10 |
| Power Input / PoE | 802.3af PoE, max 13W | PoE 802.3af (Class 0) |
| Edge Storage | — | MicroSD (encrypted) |
| Audio | — | Input/output; AAC-LC 64/96/128 kbps |
| Cybersecurity / Encryption | — | FIPS 140-2 CAVP; full system encryption; SD encryption; HTTPS |
| ONVIF | Profile S | Profile S |
| Analytics | — | VMD (Video Motion Detection) |
| Warranty | — | 3 years |
| Form Factor | Box | Box |
| Mount Options | Wall; Ceiling | Wall; Ceiling; Pole; Corner; Rack |
Frequently Asked Questions
Which should you choose: the BX520-D01U or the S1550L?
The WV-S1550L is the stronger choice when the deployment requires verified outdoor durability, low-light performance, or compliance-grade cybersecurity. Across every key differentiating spec, the S1550L provides concrete numbers while the BX520-D01U does not: the S1550L carries IP66/IK10 environmental ratings versus no rating documented for the BX520-D01U; it specifies a 0.003 lx B&W minimum illumination and 40-meter IR range versus no IR or lux figures for the BX520-D01U; and it includes 120dB Super Dynamic WDR versus no WDR rating documented for the BX520-D01U. The BX520-D01U's slightly wider focal range (4.5–10mm vs. 2.9–9mm) may suit certain framing scenarios, and its stainless finish may fit specific aesthetic requirements. However, for any outdoor, vandal-risk, or regulated environment, the S1550L is the only model here with a documented specification basis to support that deployment.
Is the BX520-D01U or S1550L better for low-light and nighttime surveillance?
Based on the provided specifications, only the i-PRO WV-S1550L has documented low-light figures: 0.0044 lx minimum illumination in color mode, 0.003 lx in B&W with active IR, and a 40-meter IR range. The Geovision BX520-D01U is listed as Day/Night but no minimum illumination value or IR range is specified in the data provided, so a direct numeric comparison cannot be made.
Can the BX520-D01U be used outdoors like the S1550L?
The i-PRO WV-S1550L carries an IP66 ingress protection rating and IK10 vandal resistance rating, both explicitly documented. The Geovision BX520-D01U has no IP rating or IK rating listed in the provided specifications. Installers should verify outdoor suitability for the BX520-D01U directly with Geovision or through its full datasheet before deploying it in exposed environments.
Which camera is better for a compliance-sensitive or government deployment requiring encryption?
The i-PRO WV-S1550L specifies FIPS 140-2 CAVP certification, full end-to-end encryption, SD card encryption, and HTTPS support. None of these security certifications or encryption features are listed in the Geovision BX520-D01U's provided specifications. For deployments with documented FIPS or encryption requirements, only the S1550L has a verifiable specification basis from the data available.
Get a Second Opinion on Your Camera Choice
Share your site layout, coverage goals, and budget. Our team will validate the camera selection, flag anything we would change, and recommend products that match the use case.