1. Power supply DC8-24V 2. Relay voltage AC220V, current AC10A, frequency 50HZ/60HZ 3. Measuring range: AC0.01-6A, accuracy 0.05A, two decimal places 4. Overcurrent setting range 0.01-5A 5. Output contacts, 1 group of normally open + normally closed 5A overcurrent protection module with button settings and digital tube display, can stably measure 50HZ/60HZ AC current, can be used for current measurement, equipment protection, dormitory overcurrent protection and other occasions Digital tube display + button settings + power-off save settings Button settings: SET is the setting key. After pressing it to enter the setting mode, DOWN and UP are subtraction and addition. When not in the setting mode, DOWN is to disconnect the relay and UP is to attract the relay The product appearance and printed words depending on the batch, but this does not affect use. Colour:Blue Material:PCB Package Contents: 1 * 5A Overcurrent Protection Module 1 * 5A Current Transformer Only the above package content, other products are not included. Note: Light reflection 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.