Treedix 5V 2, 4, 8Channel Relay Module with Optocoupler Isolation Relay Control Board Compatible with Arduino UNO R3 Raspberry Pi DSP AVR PIC ARM

Features:· Using high-current relay, AC250V 10A DC30V 10A. Contact some independent wiring, safe and reliable.· Standard interface, can be extended in a variety of development board.· With fixed screw holes for easy installation.· Can be used as microcontroller development board module can be used as home appliance control. Specification:1. board around with four fixed screw holes, hole diameter 3.1mm, easy to install and fixed2. Relay selection of high-quality loose relay, single-pole double-throw. A common end, a normally open end, a normally closed end3. Optocoupler isolation, good anti-interference4. Low level pull-in, high-level release. Pull the status indicator light, release the status indicator is off5. VCC for the system power, JD_VCC for the relay power. Plug in the jumper cap