A letter from China Factiry
1. The warranty is 12 months (No Artificial damage)
2. Due to the transport restrictions, the battery is not in the package, you should buy AA batteries yourself to ues.
3. We are the factory from China, please do not worry about the quality of our products and our service.
4. If you have any questions about the products and logistics, you can send message to us, we will reply as soon as possible.
5. Thank you for your trust and cooperation!
Function Characteristic : F21-2S
1.Have 3 function keys (2 single speed buttons + 1 stop button ).
2. Control contact is up to 4.
3. Small size for the installation of thght-spaces tailored.
4. With battery voltage warning device, the power supply is cut off during low power.
5. Can be connected with the computer through the data line to set the keys
( The program software /data line need to buy extra )
6.Up/down can be programmed to interlock or non-interlock .
Best regards
Jing Xu
General Manager
Tel:+0086-18815291489
Skype: sales21@uting3e.com
Email : jingxu0312@qq.com
WeChat/WhatsAPP: 0086-18815291489