Features: The WH32Q Wireless Temperature Humidity sensors utilizes 433MHz technology for stable data transmission, eliminating interferences and complex wiring issues found in traditional sensors. Engineered with strong plastic housing in sleek black, this sensors features super low power consumption for extended battery life and tool easy installation within seconds. Ideal for homeowners, small businesses, and facility managers seeking stable environmental monitoring solution without professional technical requirements. Perfect for real time climate tracking in smart home systems, warehouses, greenhouses, and other spaces requiring continuous environmental supervision. This 433MHz wireless sensors delivers precise humidity and temperature readings while maintaining discreet operate in any indoor setting. Specifications: Component : Plastic Size: about 12.2x4cm/5x1.6inch : wireless 433Mhz transmission, suitable for a variety of building automation systems. Power: 2x1.5V AAbatteries (Not included) Note: This model only uses Misol meteorological instrument and is suitable for the following products: WN2810 (433Mhz) Package Includes: 1xTemperature Humidity sensors note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.