ACTi Z79 vs Speco Technologies O4KT1: Specification Comparison
Both the ACTi Z79 and Speco Technologies O4KT1 are 4MP outdoor turret cameras designed for fixed surveillance deployments, sharing 802.3af PoE power, H.265/H.264 compression, ONVIF compliance, and 2.8mm fixed lenses. This comparison evaluates how their imaging capabilities, environmental ratings, installation flexibility, and integration features differentiate them for installers and IT buyers selecting between two functionally similar fixed IP turret cameras at the same resolution class.
In This Guide
How do the imaging specs compare?
Both cameras deliver 4MP resolution with H.265 and H.264 compression and include WDR and IR night vision as standard. The Speco O4KT1 specifies a print resolution of 2560×1440 at a maximum of 20 fps, a 1/3" CMOS sensor, a minimum illumination of 0.005 lux at F1.6 (AGC ON) and 0 lux with IR active, and an IR range of 98 ft. The ACTi Z79 does not provide sensor size, maximum frame rate, IR range, or minimum illumination figures in its published specifications.
The O4KT1 lens is listed at 2.8mm fixed with an aperture of F1.6 implied by the lux spec, while the Z79 explicitly states a 2.8mm fixed lens at F2.0. The wider aperture on the O4KT1 (F1.6 vs. F2.0) admits more light, which is consistent with its stated 0.005 lux color sensitivity. The Z79 notes IR as 'Adaptive' in addition to standard IR, but no quantified IR distance or lux floor is published for it. The O4KT1 also specifies PTZ range values (Pan 0°–360°, Tilt 0°–75°, Rotation 0°–360°) that appear to reflect physical mounting adjustment range rather than motorized PTZ, consistent with its turret form factor.
What about installation and environment?
The ACTi Z79 carries an IP68 rating, meaning it is rated for continuous submersion beyond 1 meter, and an IK10 impact resistance rating per its specifications. Its metal housing is explicitly noted. The operating temperature range is specified as -40°C to 60°C. The Z79 accepts PoE 802.3af with a stated maximum draw of 13W. Mount types are limited to Wall and Ceiling per spec.
The Speco O4KT1 is rated IP67, protecting against temporary immersion up to 1 meter but not continuous submersion. No IK impact rating is listed for the O4KT1. The O4KT1 supports Wall, Ceiling, Pole, and Corner mounting options, offering more deployment flexibility out of the box. It accepts 802.3af PoE or 12VDC (power supply not included per spec). No operating temperature range is published in the provided O4KT1 specifications. The O4KT1 is listed in White; no color or housing material is specified for the Z79 beyond 'metal housing.'
Which fits your VMS and analytics better?
Both cameras are ONVIF-compliant and support H.265/H.264 dual-stream, making them broadly compatible with major VMS platforms. The O4KT1 additionally lists RTSP and HTTPS as explicit VMS/protocol compatibility entries. On cybersecurity, the O4KT1 specifies User ID & Password protection, IP/MAC filtering, 802.1X port authentication, and digest authentication. The Z79 provides no cybersecurity feature list in its published specifications.
For on-board storage, the O4KT1 supports microSD up to 256GB; the Z79 lists MicroSD support without specifying a capacity ceiling. Both cameras include a built-in microphone; the O4KT1 additionally lists an audio input for an external microphone. The O4KT1 carries FCC and NDAA-compliant certifications per spec. No certification data is published for the Z79. The O4KT1 includes a stated 5-year warranty; no warranty term is listed in the Z79 specifications provided.
Which should you choose: the Z79 or the O4KT1?
Our take: The O4KT1 is the stronger choice when quantified low-light performance, broader mounting options, and documented cybersecurity features are priorities. The O4KT1 specifies a 0.005 lux color floor versus no published lux figure for the Z79, an IR range of 98 ft. versus no stated range for the Z79, and four mounting configurations (Wall, Ceiling, Pole, Corner) versus two for the Z79 (Wall, Ceiling). It also documents 802.1X and digest authentication where the Z79 publishes no cybersecurity spec, and carries a stated 5-year warranty with NDAA compliance. The Z79 holds a clear advantage in environmental hardening: IP68 (continuous submersion) and IK10 impact rating versus the O4KT1's IP67 (temporary immersion) and no published IK rating, plus a specified operating range of -40°C to 60°C where the O4KT1 lists none. Choose the Z79 for deployments demanding maximum physical resilience in harsh or vandal-prone environments; choose the O4KT1 where low-light sensitivity data, cybersecurity auditability, NDAA compliance, or flexible pole/corner mounting are the deciding criteria.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | ACTi Z79 | Speco Technologies O4KT1 |
|---|---|---|
| Resolution | 4 MP | 4 MP |
| Print Resolution | — | 2560 × 1440 |
| Image Sensor | — | 1/3" CMOS |
| Lens / Focal Length | 2.8mm fixed, F2.0 | 2.8mm fixed |
| Min Illumination | — | 0.005 lux @ F1.6 (color); 0 lux (IR on) |
| IR Range | — | 98 ft |
| WDR | Yes | Yes |
| Max Frame Rate | — | 20 fps |
| Video Compression | H.265; H.264 | H.265; H.264 |
| IP Rating | IP68 | IP67 |
| IK / Impact Rating | IK10 | — |
| Operating Temperature | -40°C to 60°C | — |
| Power Input | PoE 802.3af (13W max) | PoE 802.3af; 12VDC (PSU not included) |
| Mount Types | Wall; Ceiling | Wall; Ceiling; Pole; Corner |
| Edge Storage | MicroSD (capacity not specified) | microSD up to 256 GB |
| Audio | Built-in mic | Built-in mic; Audio input |
| ONVIF | Yes | Yes |
| Cybersecurity | — | User ID & Password; IP/MAC filtering; 802.1X; digest authentication |
| Certifications | — | FCC; NDAA-compliant |
| Warranty | — | 5 Year(s) |
Frequently Asked Questions
Which should you choose: the Z79 or the O4KT1?
The O4KT1 is the stronger choice when quantified low-light performance, broader mounting options, and documented cybersecurity features are priorities. The O4KT1 specifies a 0.005 lux color floor versus no published lux figure for the Z79, an IR range of 98 ft. versus no stated range for the Z79, and four mounting configurations (Wall, Ceiling, Pole, Corner) versus two for the Z79 (Wall, Ceiling). It also documents 802.1X and digest authentication where the Z79 publishes no cybersecurity spec, and carries a stated 5-year warranty with NDAA compliance. The Z79 holds a clear advantage in environmental hardening: IP68 (continuous submersion) and IK10 impact rating versus the O4KT1's IP67 (temporary immersion) and no published IK rating, plus a specified operating range of -40°C to 60°C where the O4KT1 lists none. Choose the Z79 for deployments demanding maximum physical resilience in harsh or vandal-prone environments; choose the O4KT1 where low-light sensitivity data, cybersecurity auditability, NDAA compliance, or flexible pole/corner mounting are the deciding criteria.
Is the Z79 or O4KT1 better for low-light performance?
Based on published specifications, the O4KT1 has a documented advantage: it specifies a minimum illumination of 0.005 lux at F1.6 (color, AGC ON) and 0 lux with IR active, with IR range stated at 98 ft. The Z79 does not publish a minimum illumination figure, IR range, or aperture size beyond F2.0, so a direct numerical comparison cannot be made from available specs. Buyers requiring verified low-light figures should request test data or a demo from ACTi before specifying the Z79 for low-light-critical locations.
Which camera is tougher for outdoor or vandal-prone installations?
The Z79 is specified at IP68 (rated for continuous submersion) and IK10 (highest standard impact resistance) with a metal housing and an operating range of -40°C to 60°C. The O4KT1 is rated IP67 (temporary immersion to 1 meter) with no published IK rating or operating temperature range. For installations exposed to flooding risk, repeated physical impact, or extreme temperatures, the Z79's published ratings offer a documented edge.
Does either camera meet NDAA compliance requirements for federal or government projects?
The Speco O4KT1 is listed as NDAA-compliant in its published specifications. No NDAA compliance claim appears in the ACTi Z79 specifications provided. Buyers with federal, government, or NDAA Section 889-sensitive procurement requirements should verify compliance status directly with ACTi before specifying the Z79.
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