ACTi B912 vs ACTi Z972: Specification Comparison
Both the ACTi B912 and ACTi Z972 are 5MP mini PTZ cameras sharing the same resolution class and camera type, making them a natural cross-shop pair. The B912 is purpose-built for harsh outdoor deployments, while the Z972 targets indoor environments. This comparison examines how their imaging performance, installation requirements, and integration capabilities differ, helping installers and IT buyers select the right unit for their specific application without relying on marketing claims.
In This Guide
How do the imaging specs compare?
Both cameras deliver 5MP resolution, but their optical zoom ranges diverge significantly. The B912 uses a 4.7–47mm lens providing 10x optical zoom, suited to large perimeter coverage where distant subjects must be identified. The Z972 uses a 2.7–13.5mm lens with 5x optical zoom, a range better matched to corridors and mid-sized indoor spaces. Sensor sizes differ slightly: B912 at 1/2.9" versus Z972 at 1/2.7", with the larger Z972 sensor potentially aiding light capture. Both cameras list a minimum color illumination of 0.003 lux, though the B912 additionally specifies B/W sensitivity at 0.002 lux at F1.6.
WDR performance separates the two measurably: the Z972 is rated at 145dB versus the B912's 120dB, a 25dB advantage that translates to a substantially wider dynamic range for scenes with extreme lighting contrasts such as backlit entryways. IR illumination also differs: the B912 uses 940nm invisible IR (covert, no red glow), while the Z972 uses 850nm adaptive IR with a specified range of 120m. The B912's IR range is not specified in the provided data. The B912 supports H.265, H.264, and MJPEG; the Z972 lists H.265 and H.264 in its primary specs (MJPEG also appears in a secondary spec field but is not confirmed in the top-level spec).
What about installation and environment?
The B912 carries IP67 and IK10 ratings, qualifying it for dust-tight, temporary immersion resistance, and resistance to significant mechanical impact — appropriate for exposed outdoor mounting. The Z972 carries no IP or IK rating in the provided specifications, consistent with its indoor-only classification. Operating temperature ranges also diverge: the B912 is rated -40°C to 60°C, while the Z972 is rated -40°C to 70°C for storage (the provided spec labels this field 'Storage Temperature'); the Z972's operating temperature range is not explicitly stated in the provided data.
Power requirements differ by class. The B912 is powered via PoE+ (802.3at) or DC 12V; the Z972 also lists PoE (802.3af) in some fields and PoE+/High PoE (802.3at) or DC 12V in others — buyers should verify the exact injector or switch port class required with the manufacturer's datasheet. The B912 weighs 1,493g (3.29 lb) and supports wall, pole, pendant, corner, and rack mounting. The Z972 weighs 780g (1.72 lb) and supports wall, ceiling, and pendant mounting. PTZ range also differs: the B912 pans ±175° with preset accuracy ±1.5° and pan/tilt speed 1.6–64°/sec; the Z972 pans 350° continuous with tilt -20° to 90°.
Which fits your VMS and analytics better?
The B912 supports ONVIF Profile S, G, T, and M, plus Visca, Pelco-D, and Pelco-P PTZ control protocols, and ACTi URL — a broader protocol list than the Z972, which supports ONVIF Profile S, G, and T only. For legacy VMS environments relying on Pelco-D/P or Visca, the B912 is the only compatible option of the two. Both cameras support two-way audio; the B912 additionally specifies mic-in, line-in, and line-out connections, while the Z972's audio interface details are not specified beyond 'two-way' in the provided data.
Analytics capability differs in character. The B912 lists VMD, People Counting, and Smoke Detection. The Z972 includes Deep Learning Processing Unit (DLPU)-based analytics: Smart Intrusion Protection, People Line Crossing Detection, People Intrusion Detection, and People Enter Area Detection — a more granular, AI-accelerated analytics suite for rule-based interior monitoring. On-board edge storage specifications are not provided for either model. The Z972 carries CE, FCC, UL Listed, and BSMI certifications; the B912's certifications are not listed in the provided specifications.
Which should you choose: the B912 or the Z972?
Our take: The B912 is the stronger choice when the deployment is outdoor, requires legacy PTZ protocol support, or demands a covert IR profile. It brings IP67/IK10 environmental hardening, 10x optical zoom versus the Z972's 5x, invisible 940nm IR, and a broader VMS/PTZ protocol set including Pelco-D, Pelco-P, and Visca alongside ONVIF Profile S/G/T/M. The Z972 is the stronger choice for indoor installations where superior dynamic range and AI-based analytics matter more: its 145dB WDR outpaces the B912's 120dB by 25dB, its DLPU enables on-camera intrusion and line-crossing rules without server-side processing, and its 350° continuous pan range exceeds the B912's ±175° sweep. Choose the B912 for outdoor perimeter and covert IR applications on Pelco-legacy VMS platforms; choose the Z972 for indoor environments requiring advanced edge analytics on ONVIF S/G/T-compatible systems.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | ACTi B912 | ACTi Z972 |
|---|---|---|
| Resolution | 5MP | 5MP |
| Image Sensor Size | 1/2.9" | 1/2.7" |
| Lens / Focal Length | 4.7–47mm (10x optical zoom) | 2.7–13.5mm (5x optical zoom) |
| Min. Illumination (Color) | 0.003 lux @ F1.6 | 0.003 lux @ F1.2 |
| Min. Illumination (B/W) | 0.002 lux @ F1.6 | 0 lux (IR on) |
| IR Wavelength | 940nm (invisible) | 850nm (adaptive) |
| IR Range | — | 120m |
| WDR | 120dB | 145dB |
| Max Frame Rate | 30fps @ 2592×1944 | — |
| Video Compression | H.265; H.264; MJPEG | H.265; H.264 |
| PTZ Range (Pan) | ±175° | 350° continuous |
| PTZ Range (Tilt) | 0°–180° | -20° to 90° |
| IP Rating | IP67 | — |
| IK Rating | IK10 | — |
| Operating Temperature | -40°C to 60°C | — |
| Power Input / PoE Class | PoE+ (802.3at) or DC 12V | PoE+ (802.3at) or DC 12V |
| ONVIF Profiles | S, G, T, M | S, G, T |
| PTZ Protocols | Visca; Pelco-D; Pelco-P; ONVIF; ACTi URL | ONVIF only |
| Edge Analytics | VMD; People Counting; Smoke Detection | DLPU; Smart Intrusion Protection; Line Crossing; Intrusion Detection; Enter Area Detection |
| Audio | Two-way; Mic-in; Line-in; Line-out | Two-way (interface not specified) |
| Weight | 1,493g (3.29 lb) | 780g (1.72 lb) |
| Mount Types | Wall; Pole; Pendant; Corner; Rack | Wall; Ceiling; Pendant |
| Application Environment | Outdoor | Indoor |
| Certifications | — | CE; FCC; UL Listed; BSMI |
Frequently Asked Questions
Which should you choose: the B912 or the Z972?
The B912 is the stronger choice when the deployment is outdoor, requires legacy PTZ protocol support, or demands a covert IR profile. It brings IP67/IK10 environmental hardening, 10x optical zoom versus the Z972's 5x, invisible 940nm IR, and a broader VMS/PTZ protocol set including Pelco-D, Pelco-P, and Visca alongside ONVIF Profile S/G/T/M. The Z972 is the stronger choice for indoor installations where superior dynamic range and AI-based analytics matter more: its 145dB WDR outpaces the B912's 120dB by 25dB, its DLPU enables on-camera intrusion and line-crossing rules without server-side processing, and its 350° continuous pan range exceeds the B912's ±175° sweep. Choose the B912 for outdoor perimeter and covert IR applications on Pelco-legacy VMS platforms; choose the Z972 for indoor environments requiring advanced edge analytics on ONVIF S/G/T-compatible systems.
Is the B912 or Z972 better for low-light performance?
Both cameras list the same minimum color illumination of 0.003 lux. The B912 additionally specifies B/W sensitivity at 0.002 lux at F1.6, and uses 940nm invisible IR for covert night operation. The Z972 uses 850nm adaptive IR with a specified 120m range; the B912's IR range is not stated in the provided specifications. Neither camera has a clear low-light advantage based solely on lux figures, but the Z972's 120m IR range spec and larger 1/2.7" sensor (vs. B912's 1/2.9") may favor indoor long-corridor coverage.
Can either camera work with a Pelco-D or Pelco-P VMS?
Only the B912 lists Pelco-D and Pelco-P PTZ control protocol compatibility in its provided specifications. The Z972 is listed as ONVIF Profile S, G, and T only. If your VMS relies on Pelco-D or Pelco-P for PTZ control, the B912 is the appropriate choice; the Z972 does not advertise those protocols in the available spec data.
Which camera is suitable for outdoor installation?
The B912 is explicitly rated for outdoor use with IP67 dust/water ingress protection and IK10 impact resistance, and an operating temperature range of -40°C to 60°C. The Z972 is classified as an indoor camera and carries no IP or IK rating in the provided specifications. The Z972 should not be assumed suitable for outdoor installation based on the available data.
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