1Measure Whether: Rain and snow sensor is a qualitative measuring device, which is used to measure whether it rains or snows outdoors or in the nature. 2Safe and Sensitive: The rain and snow sensor is safe, reliable, beautiful and easy to install. The sensitivity of the sensor is adjustable for more flexible use. 3AC Measurement Technology: The unique AC measurement technology prevents the oxidation reaction of the sensing plate and ensures long term sensitivity. 4Automatic Heating: The automatic heating function can be used for snow detection to prevent freezing and condensation when the temperature is lower than 0 for a long time and the humidity is high. 5Heating Temperature Range: The temperature during heating shall be strictly controlled within 40 C (default value) to prevent excessive oxidation caused by dry burning and prolong the service life. 6Response Time and Alarm Reset Delay: The response time of rain and snow measurement is less than or equal to 0.5s. Alarm and reset delay can be set to avoid frequent field alarms. 7IP68 Protection Level: The rain and snow transmitter is designed with IP68 protection level, and can work outdoors for a long time.5 x Expansion Plugs5 x Tapping Screws1 x Sensor 1 x Manual