2/4/8Channel Modul With Optokoppler Isolation H/L Level Trigger Relay 5-24V B2SA
24V 8Channel. 5V 8Channel. 9V 8Channel. Module can be set high level or low level trigger by jumper wire;. Trigger current 5mA;. High or low level trigger option Power indicator light (green), relay status indicator light (red);.