5pcs 5V Low Level Trigger One 1 Channel Relay Module Interface Board Shield DC AC 220V

Features: With isolation groove in control area and load area.With power and relay action indication, bright when connect and go off when disconnects.When there is a signal in signal input, public side and common side will breakover.It can be not only used as a microcontroller development board module, but also as a home appliance control.It can not only control the DC or AC signal, but the 220V AC load.With a permanent open and close vents contact.It is convenient to connect with blue KF301 terminal access control cable.Specification: VCC: Power interface ,5VGND: GroundIN: Control interface .Drive Current at least 4mACOM: Control circuit ground ,Connect to GNDSize: approx. 41 x 16 x 16mm/ 1.61 x 0.62 x 0.62''Weight: approx. 12g Note:1. High level flip-flops shows that there are trigger mode of the voltage between the signal input terminal and the ground; That is to say it is a way of short circuit trigger between signal input and VCC positive pole.2. Low level flip-flops shows that there are voltage for OV trigger mode between the signal input terminal and the ground. In a word, it is a way of short circuit trigger between signal input and GND negative pole.3. Please allow 1-3mm differs due to manual measurement.4. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understandPackage Included:5 x 1 Channel Relay Module