Rugged bi‑spectrum thermal bullet camera for perimeter and fire‑prevention monitoring. The Hikvision DS-2TD2138-25/QY uses a 384×288 VOx thermal detector with a 25 mm thermal lens and provides temperature‑exception alarms and perimeter VCA rules for demanding outdoor and industrial environments.

• 384×288 VOx thermal detector (12 µm); NETD < 35 mK.
• 25 mm thermal lens (~11° × 8° FOV), IFOV 0.48 mrad, min focus ≈ 13 m.
• Temperature measurement/exception alarms: −20 °C to 150 °C (±8 °C accuracy); fire‑prevention mode.
• Perimeter VCA: line crossing, intrusion, region entrance/exit; multiple programmable rules.
• Bi‑spectrum anti‑corrosion housing (Y designation), IP67 and surge protection (TVS 6000 V).
• Multiple streams (H.265/H.264/MJPEG), microSD up to 256 GB and NAS (ANR supported).

Use cases: perimeter protection for critical infrastructure (airports, rail, power stations), industrial sites, fire‑risk areas and remote monitoring where thermal detection and alarm integration are required.

Compliance & notes: Verify CE/UKCA markings and warranty/firmware support with your supplier before purchase. Hikvision’s global product page currently lists this model as discontinued; confirm availability, support and part‑number variant before long‑term deployment. Installation should follow local electrical and safety regulations; consult the official installation guide.