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4 Channel GSM Relay Smart Remote Switch GSM Controller Switch Module GSM Gate Opener for Gate Garage Door control SMS Phone Call
Specifications:
- Case Material: Aluminum Alloy
- Certification: CE
- Certification: RoHS
- GSM Frequency: GSM850/900/1800/1900mhz
- Input voltage: DC12V
- Origin: CN(Origin)
- Relay Switches: 4 Channels or 8 Channels
- Free shipping
- 100 days returns
- Low prices
- 5 million products