The DC 12V 4 Channel Bluetooth Wireless Control Relay Module contains 4 relay channels that operate on 12VDC to handle the appliances of 230VAC or 30VDC up to the 10A current. The relay module comes with an onboard integrated SPP-C Bluetooth serial slave module, which can be used to control relay switching by sending commands via the mobile phone APP or by your customise Bluetooth remote with very easy to set up.

LED Indications:

LED D1(Blue): Bluetooth state indicator:

1. D1 blink slowly-Search Module over Bluetooth and wait till pairing
2. D1 Continue ON means connection established and ready to use

LED D2/D3/D4/D5 (Red): Relay indicator

These LEDs will show the status of Relay ON-OFF individually  

Specifications and Features:

1. Easy to set up and pair with Android Phone
2. Onboard Bluetooth status indicator and relay indicator
3. With 4 optocoupler isolation, strong anti-interference ability
4. Onboard N76E003/STM8S003 and SPP-C Bluetooth 2.1 module
5. Effective control distance(on open area): 10m
6. Module Operating Voltage: 12VDC
7. On-board 12V, 10 A / 250 v AC 10 A / 30 v DC relay, absorb 100000 times continuously.
8. Module with diode effusion protection short response time
9. Board Dimensions (L x W x H) mm: 63 x 64 x 19
10. Weight : 60 gm