ITEM NAME:5V High / Low Level With Trigger Opto-isolator 4 channels Power relay modul X4Y5 5V High / Low Level With Trigger Opto-isolator 4 channels Power relay modul X4Y5 H3A5 Product Name: 4-channel Opto-isolator Power relay module Coil voltage: DC 5V Machining Type: High / Low Level With trigger Total Size: 43 x 30mm / 1.7 x 1.2 inch (L * W) Material: Plastic, metal Color: Red weight: 60 g Package: 1 x 4-channel Opto-isolator Power relay module Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
