Designed to monitor and set temperature and humidity, simple and useful.Can work with temperature and humidity monitoring switch, can detect the real-time temperature and humidity of the environment.With waterproof, moisture-proof and anti-rust with the high-quality stainless steel tube encapsulated.Perfect and cost-effective monitoring sensor for your DIY .No other components, unique single bus interface.SpecificationsPower: DC3.1-5.5V.Working temperature: -40-and80 degree.Operating Temperature Range: -55C- and125C.PLS NOTE: this waterproof probe can only measure the temperature, not measure humidity.size: 1 MMaterial: Plasticcolour: As ShownPackage Contents:1 x Waterproof probeOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.