Variable Frequency Air Conditioning External Unit Sensor 15K 20K 50K For Air Conditioning Maintenance Spare Parts 100% new and high quality! Material: Plastic + Metal Color: as shown Packing: 1pcs 1. High-precision detection: The air conditioner external sensor can accurately and -time detect the temperature and humidity of the outdoor environment, providing accurate data support for the work of the air conditioner. 2. Energy saving and environmental protection: By detecting the outdoor temperature change, the air conditioner external sensor can be intelligently controlled to make the air conditioner work in a suitable state, which not only ensures comfort, but also avoids excessive cooling or heating, saves electricity, and realizes environmental protection. Note: 1. Due to manual measurement, there may be 5mm deviation exist,hope you can understand. 2. There are slight differences between the picture and the item caused by light brightness,hope you can understand.