Heat resistance: placed in 80±3°C environment for 48h, returning to normal temperature for 1-2h without abnormality, and the parts have no crack, slack, expansion, deformation, etc., and the accuracy changes within 10%. Cold resistance: placed in -20±3°C environment for 48h, returned to normal temperature for 1-2h without abnormality, and the parts have no crack, slack, expansion, deformation, etc., and the accuracy changes within 10%. Moisture resistance: After being taken out for 72 hours in an environment of 40±2°C and relative humidity of 90% to 95% RH, the insulation resistance is 1 M or more. Pulling strength: Applying a pulling force of 10N for 1 minute on the lead wire, no looseness or breakage, and no change in performance. Durability: At normal temperature, 0.1MPa water pressure is introduced from the water inlet to turn on 1S, and 0.5S is turned off., Manufacturer: ZXZZAS