Designed to monitor and set temperature and humidity, simple and useful.<br> Can work with temperature & humidity monitoring switch, can detect the real-time temperature & humidity of the environment.<br> With waterproof, moisture-proof and anti-rust with the high-quality stainless steel tube encapsulated.<br> Perfect and cost-effective monitoring sensor for your DIY smart home.<br> No other components, unique single bus interface.<br> Specifications<br> Power: DC3.1-5.5V.<br> Working temperature: -40-+80 degree.<br> Operating Temperature Range: -55C- +125C.<br> PLS NOTE: this waterproof probe can only measure the temperature, but not measure humidity.<br> size: 1 M<br> Material: Plastic<br> colour: As Shown<br> Package Contents:<br> 1 x Waterproof probe<br> Only the above package content, other products are not included.<br> 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.