Overview
The Hikvision DS-2TD2137T-4/QY is an anti‑corrosion thermographic network bullet camera designed for perimeter protection and early fire detection. It combines a 384×288 VOx uncooled thermal detector with a fixed 4.4 mm thermal lens and embedded analytics for temperature‑exception alarms and VCA.

• Thermal sensor: 384 × 288 VOx FPA, 17 µm, NETD ≤ 35 mK.
• Field of view: 4.4 mm lens, 90° × 65.3° (H × V).
• Temperature measurement: −20°C to 550°C, accuracy stated max (±2°C, ±2%); supports point/area/line rules and temperature alarms.
• Analytics: human/vehicle classification, line crossing, intrusion, region entrance/exit, smoking/fire detection algorithms.
• Durability: IP67, IK10, anti‑corrosion coating; operating temperature −40°C to 65°C.
• Power & interfaces: PoE (802.3af, Class 3), 12 VDC, 24 VAC; RJ45; alarm I/O; audio in/out; microSD up to 256 GB; ONVIF/SDK support.

Use cases
Suitable for perimeter security, industrial and infrastructure sites, and early fire detection where temperature monitoring and ruggedised outdoor performance are required.

Installation & compliance notes
For temperature‑measurement applications, on‑site calibration or certified calibration may be required to meet regulatory or contractual obligations—confirm calibration and certification needs with the supplier. Check the supplier for CE/UKCA marking and local compliance details before deployment.