External unit sensor for air conditioning 15K 20K 50K variable frequency100% new and high quality!<br> Material: Plastic + Metal<br> Color: <br> Packing: 1pcs<br> 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.<br> 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.<br> Note:<br> 1. Due to manual measurement, there may be 5mm deviation exist,hope you can understand.<br> 2. There are slight differences between the picture and the item caused by light brightness,hope you can understand.