Hikvision DS-QFV-CKS4L – Loose tube construction, tubes jelly filled, elements (tubes and filler rods) and water bl

Loose tube construction, tubes jelly filled, elements (tubes and filler rods) and water blocking yarns laid up around metallic central strength member, polyester yarns used to bind the cable core, water blocking tape, then steel tape and LSZH outer sheath.
It can withstand harsh environments such as moisture, temperature variations, and is resistant to ammonia, chlorine, salt spray, acid rain, ultraviolet rays and more.

Supports dual channel DAS vibration fiber.
Supports long-distance detection with a single-channel detection distance up to 2 km.
Supports simultaneous positioning and monitoring of multiple vibration points with high positioning accuracy of ± 5 m, frequency response range from 10 Hz to 5 kHz, and alarm response time ≤ 2 s.