1Made from premium abs material, which is solid, durable to use. 2The transmitter can be used in cold storage monitoring/high-temperature and high-humidity environment/high-strength interference/laboratory and other places 3High sensitivity, fine workmanship, waterproof and moisture-proof. High quality probe, safe and reliable. IP67 protection grade is suitable for harsh working environment, also suitable for rain and snow, damp, dust. 4The pipe type temperature and humidity sensor adopts stainless steel filter net, which can not only filter out dust, but also ensure air circulation. 5The 20um high-density hole plays a buffer role for the high-speed air flow in the pipe, so as to ensure the accuracy of temperature and humidity measurement data.