Features1Main Function: The rain and snow sensor is a qualitative measuring device for measuring whether it rains or snows outdoors or in nature. The measurement of rain and snow, the response time is less than or equal to 0.5S. 2High Sensitivity: The unique AC measurement technology prevents oxidation reacting of the induction plate and ensures longterm sensitivity. The sensitivity of the sensor is adjustable, making it more flexible to use. 3Automatic Heating: Optional automatic heating function can be used for snow detection to prevent freezing and condensation in situations where the temperature is lower than 0 degrees for a long time and high humidity. 4Strict Temperature Control: The temperature during heating is strictly controlled within 40 (default) to prevent over oxidation caused by dry burning and prolong the service life. 5Protection Function: IP68 protection grade design, can work outdoors for a long time. Alarm and reset delay can be set to avoid frequent on site alarms. It is safe and reliable, beautiful in appearance and easy to install.SpecificationItem Type: Rain and Snow SensorMaterial: PlasticWeight: Approx. 153g/5.40ozSize: 89x64x38mm/3.50x2.52x1.50inPower Supply: 10-30V DC Normal Working Power0.4WStorage Environment-40-80 Output Signal: 485Parameter Configuration: Software settingDefault Address: 01 Support Function Code: 03, 06Maximum Heating Temperature: 40Output Relay With Load Capacity: 250VAC 1A, 30VDC 1AProduct Model: RS YUX N01 HProduct Type: 485 mode, automatic heatingWire Sequence: VCC(brown) GND(black) A(yellow) B(blue) Ambient Temperature For Heating Start: