Keyestudio 4-channel Solid State Relay Module Board for Arduino (BLACK)

Descriptions: 
This module is a high-level effective solid state relay, when the input control signal is 0 - 2.5V, the relay will off, and when the signal is 3.3 - 5V, it will on.
It is a very useful module for your scientific experiment, come and take one home!

Features at a glance: 
- It is a new kind of contactless switching device which is composed of all solid state electronic components
- It has higher reliability, with the features of non-contact, long service life, fast, and less outside interference
- The output control terminal of this relay must be connected to the circuit, and its working current needs to be more than 50mA

Parameter:
- 4-channel voltage: DC 5V
- Working current: 12.5mA
- Trigger voltage: 3.3 - 5V
- Trigger current: 2mA
- Output port: AC 240V/2A