Specification:

1. VCC: Power interface,5V
2. GND: Ground
3. IN: Control interface.Drive Current at least 4mA
4. COM: Control circuit ground,Connect to GND
5. Single Size: approx.41 x 16 x 16mm/1.61 x 0.62 x 0.62''
6. Weight: approx.58g
7. Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light,the picture may not reflect the actual color of the item.Thanks for your understanding.

Features:

1. With isolation groove in control area and load area.
2. With power and relay action indication,bright when connect and go off when disconnects.
3. When there is a signal in signal input,public side and common side will breakover.
4. It can be not only used as a microcontroller development board module,but also as a home appliance control.
5. It can not only control the DC or AC signal,but the 220V AC load.
6. With a permanent open and close vents contact.
7. It is convenient to connect with blue KF301 terminal access control cable.