Industrial surveillance cameras fall into four practical classes — IP network, analog CCTV, explosion-proof/ATEX, and thermal/infrared — each mapped to a different site hazard and resolution tier, with current China-origin OEM offerings spanning roughly US$5 to US$15,000 per unit on tier-1 platforms [S2][S3][S6].
Selection pivots on four specs: ingress rating (IP66/IP67 minimum for outdoor), operating lux, PoE/PoE+ power budget, and any hazardous-area certification; misreading any one of these typically voids the warranty and fails site audit [S2][S3][S6].
IP Network Cameras Dominate New Plant Installs
IP network models now anchor most greenfield industrial builds, with 4K/8MP bullet, dome, and PTZ configurations selling between US$32.50 and US$34.50 per unit on factory-direct channels and smart-IR night-vision integrated on the same board [S3].
Buyers in process plants should anchor selection to ONVIF Profile S/T conformance, H.265+ codec support, and PoE+ (802.3at) to keep cabling and VLAN segmentation simple [S3]. A surveillance camera specifier comparing a 4MP IR bullet against an 8MP PTZ will trade static field-of-view for active tracking, with bandwidth roughly doubling per resolution step on H.265.
Analog CCTV and CCD Hold Legacy and Cost-Driven Slots
CCD-based analog surveillance cameras still hold price-sensitive and legacy-coaxial slots, with Alibaba-tier offerings bundling the imager, DSP, and IR LED on a single PCB for retrofits where re-pulling CAT6 is not feasible [S4].
For brownfield sites with 75-3 coax already in conduit, an analog HD-over-coax (TVI/CVI/AHD) path avoids re-cabling; for greenfield, the same budget buys a lower-resolution IP unit with far better analytics support [S4]. The industrial camera classification overlaps here on machine-vision hardware, but surveillance SKUs prioritise wide dynamic range and IR cut filters rather than shutter trigger latency.
Explosion-Proof and Hazardous-Area Variants
Explosion-proof infrared pinhole cameras rated for coal-mine and petrochemical service list at US$100 to US$15,000 per set, with dousing/enclosure types built to keep surface temperature below the auto-ignition threshold of the surrounding gas group [S6].
Specifying these units requires matching the Ex marking (e.g. Ex d IIB T6) to the zone classification, confirming the cable gland is also certified, and budgeting 1.5x to 2x the lead time of a standard IP camera because the housing and window glass are custom-machined [S6]. An industrial buzzer on the same hazardous-area loop is a useful functional analogue — both rely on enclosure integrity rather than intrinsic safety to meet the zone.
Thermal, Infrared, and Low-Light Performance
Infrared-capable network cameras bundle 850 nm or 940 nm IR LEDs with smart-IR dimming to avoid subject overexposure, and the better SKUs publish a minimum illumination figure of 0.001 lux in monochrome mode [S3].
Thermal imagers sit in a separate sub-class and price band; they read emitted long-wave IR (typically 8–14 µm) and do not require visible light, which is why perimeter sites with fog or smoke still resolve a human silhouette at 100 m+ range [S3]. A pragmatic spec floor for outdoor industrial service is IP67, IK10 vandal rating, and −30 °C to +60 °C operating envelope, all three of which are now table stakes on tier-1 OEM datasheets [S2][S3].
Vehicle, Mobile, and Specialty Form Factors
Mobile/vehicle surveillance cameras (in-car, bus, truck) cluster as their own segment with MOQs typically at 1 piece and ruggedised housings for 12 V/24 V DC bus power; sourced units span US$5 to US$15 entry-level through US$13,000 to US$20,000 multi-channel mobile DVR bundles [S2].
These overlap with industrial machine-vision cameras only on the imager side; the deployment context — vibration, transient DC, ignition-suppression — is the differentiator that pushes a SKU into the mobile bucket rather than the fixed-plant bucket [S2]. A working spec for fleet buyers is a 2 MP to 4 MP sensor, 2.8 mm or 3.6 mm fixed lens, IP67 housing, and a wide-input 8 V–36 V DC regulator on the supply side.
Comparison: Four Camera Classes Against Spec Criteria
Lining the four classes against decision criteria — ingress, low-light, hazardous-area fit, and price band — gives a working selection matrix: IP network (IP66/67, 0.01–0.001 lux, no Ex rating, US$30–500); analog CCTV/CCD (IP66 typical, 0.1 lux, no Ex, US$15–150); explosion-proof (IP66/68, model-dependent, Ex d IIB T6 typical, US$100–15,000); thermal/IR-specialised (IP67, 0 lux via IR, no Ex standard, US$300–3,000) [S2][S3][S4][S6].
Reading the matrix, a chemical tank farm should default to explosion-proof regardless of resolution, while a logistics warehouse without Ex zoning can standardise on IP67 + IK10 PoE+ network cameras and re-use one VMS for the whole site [S2][S6]. Procurement signal: the factory-direct entries on tier-1 China sourcing portals show gold-member audited suppliers in Shenzhen, Jinan, and Changzhou holding stock of 4K bullet and dome SKUs at stable unit pricing across the past listing window [S2][S3].
Track before the next spec cycle: ONVIF Profile M (metadata) adoption on new IP SKUs, and the migration of thermal sensors from uncooled VOx to smaller 10 µm pixel pitch, both of which will reset the resolution-versus-price curve for 2027 builds.
This topic is covered further in Rough Terrain Forklift TCO: Cost Drivers, Spend Stack, and Selection Map.