5V RELAY One Channel 5V Relay Module for Arduino Raspberry Avr Pic Low Level Trigge

Detect the module complies with international safety standards, the control area and the load region isolation trench. the 8550 transistor drive, drive ability. the signal input with signal common terminal will start with regular conduction. can be used as a microcontroller development board module can be used as home appliance control. the control dc or ac signal, you can control 220v ac load. there is a normally open and one normally closed contact. blue kf301 terminals to the control line is more convenient.Humidity and temperature.