Monocrystalline silicon core, smaller time drift and temperature drift, more accurate long-term measurement. Anti-, safe and reliable: thick shell, anti-, , adaptable to working conditions. IP68 protection level, anti-water ingress: integrated sealing structure, five-layer sealing protection, IP68 waterproof and dustproof Operating voltage:9-24V dc Accuracy:Level0.5(default)/0.3 level/0.1 Response time:0.5ms Temperature compensation:0-50C Medium temperature:0-70C Color: As Shown Material: Metal Package Contents: 1 x Water Level Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.