... the capability of heat-endurance, cold-endurance, dryness-endurance, and humidity-endurance, suitable for quality control of the industries of electron ... . range: -70°C ~150°CHumid. range:20 ~ 98%R.H.Temp. & Humid. accuracy:± 0.3°C; ± 2%R.HTemp. & ... breaker refrigerator over load relay, Refrigeration High pressure Switch, Over Temp, Protector, Protection relay, Protection fuse, Water Lever protector, ...