[DETAIL] 1) Name: Universal Receiver SMG-662. 2) Working voltage: 9V-30V3) Channel: 2. 4) Frequency: 300MHz-900MHz. 5) Distance: 30-50 meters. 6) Very mini size: 5.5cm*4.5cm*1.0cm. 7) One receiver can handle 400 codes. 8) It won't interfere with other remotes and receivers. 9) Brand Selector: With 8 DIP switches, users can make different combinations for different remote control brands. 10) Code: Rolling and pinning code and learning code. 11) Usage: The receiver is designed to control any access control system, burglar alarm system, electric doors and windows, lifting equipment, gateways, lifting equipment. It's an easy-to-use, aesthetically pleasing, low-power product that is easy to connect to your existing system. 12) Power input selector: This receiver can work in AC/DC9V~30V. However, it is better to change the PIS depending on the power input. If the input is greater than 24V, the short pin is 2&3, and if the input is less than 24V, it is shortened by 1&2. [ATTRIBUTES] - Hign-concerned Chemical: None - Support APP: No - Frequency: 433 MHz - Hign-concerned Chemical: None - Support APP: No - Frequency: 433 MHz - Package: Yes - Wireless Communication: IR - Use: Universal - Origin: Mainland China - Certification: CE