set2: 1 x 12V 4CH Remote Control Switch Module + 5 x Barrier Terminal Block600v ,15A ,4PositionsOn-board N76E003/STM8S003 and SPP-C Bluetooth 2.1 module;The relay can be controlled with APPEffective control distance(on open area): 10mPower supply: 12V;On-board 12V, 10 A / 250 v AC 10 A / 30 v DC relay, absorb 100000 times continuously, Module with diode effusion protection, short response timeOn-board optocoupler isolation components, anti-interference ability is strongly;On-board Bluetooth indicator and relay indicator LED8, On-board preserved UART debug interface(Baud rate is 9600) and MCU program interfaceTB seriers Barrier Terminal Block.Each pair of terminals is insulated from the next.Double row 4 plated metal screw connectors fixed position and plastic outer design.Usage: TelecommunicationVoltage: 5VPower Source: DCTheory: bluetooth relayLC 12V Bluetooth 4-channel relay module equip with SPP-C Bluetooth 2.1 slave module and 8 bit high performance MCU, you can control the relay with cellphone APP directly.Protect Feature: EpoxyContact Load: Low PowerModel Number: bluetooth relay moduleInterface:IN+, IN-: 12V power inputTX, RX: UART communicationSWIM, NRST: MCU program interfaceLED D2/D3/D4/D5(red): Relay indicatorLED D1(blue): Bluetooth state indicator, the description of D1 as below:(1)It's means wait for establishing connection with the APP when D1 blink slowly(2)It's means the Bluetooth connect with the APP successfully when D1 on all the timeColour:as the picture showsMaterial:PCB/ Metal, PlasticSize:62.7 x 63.2mmPackage Contents:1 x 12V 4CH Remote Control Switch Module5 x Barrier Terminal BlockOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

5 Pcs Dual Row 4 Position Covered Screw Terminal Block Strip & 1X 12V 4CH Remote Control Switch Bluetooth Relay Module 

set2: 1 x 12V 4CH Remote Control Switch Module + 5 x Barrier Terminal Block600v ,15A ,4PositionsOn-board N76E003/STM8S003 and SPP-C Bluetooth 2.1 module;The relay can be controlled with APPEffective control distance(on open area): 10mPower supply: 12V;On-board 12V, 10 A / 250 v AC 10 A / 30 v DC relay, absorb 100000 times continuously, Module with diode effusion protection, short response timeOn-board optocoupler isolation components, anti-interference ability is strongly;On-board Bluetooth indicator and relay indicator LED8, On-board preserved UART debug interface(Baud rate is 9600) and MCU program interfaceTB seriers Barrier Terminal Block.Each pair of terminals is insulated from the next.Double row 4 plated metal screw connectors fixed position and plastic outer design.Usage: TelecommunicationVoltage: 5VPower Source: DCTheory: bluetooth relayLC 12V Bluetooth 4-channel relay module equip with SPP-C Bluetooth 2.1 slave module and 8 bit high performance MCU, you can control the relay with cellphone APP directly.Protect Feature: EpoxyContact Load: Low PowerModel Number: bluetooth relay moduleInterface:IN+, IN-: 12V power inputTX, RX: UART communicationSWIM, NRST: MCU program interfaceLED D2/D3/D4/D5(red): Relay indicatorLED D1(blue): Bluetooth state indicator, the description of D1 as below:(1)It's means wait for establishing connection with the APP when D1 blink slowly(2)It's means the Bluetooth connect with the APP successfully when D1 on all the timeColour:as the picture showsMaterial:PCB/ Metal, PlasticSize:62.7 x 63.2mmPackage Contents:1 x 12V 4CH Remote Control Switch Module5 x Barrier Terminal BlockOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.