Feature 1、* After adding the device, the temperature and humidity data will be automatically displayed on the App. 2、* It\u0027s not waterproof, for indoor use in dry environment only. 3、* It must work with broadlink RM4 pro together. 4、* This item just include the HTS2 cable, not include the RM4 pro. 5、* Plesae use the temperature and humidity sensor with RM4 pro, not RM4C mini. Features: * After adding the device, the temperature and humidity data will be automatically displayed on the App. * It's not waterproof, for indoor use in dry environment only. * It must work with broadlink RM4 pro together. * This item just include the HTS2 cable, not include the RM4 pro. * Plesae use the temperature and humidity sensor with RM4 pro, not RM4C mini. Specifications: Model: Broadlink HTS2 Compatible with: RM4 pro Working environment: -10°C~40°C Material: PC Package Information: Package Size: Approach. 8*5*3cm/3.15*1.97*1.18in Package Weight: Approach. 20g / 0.71oz Package List: 1 * Temp Humidity Sensor Package List 1 * Temp Humidity Sensor