AEDIKO 4pcs Relay Module DC 5V Relay Switch 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger auspowers_batchone 6 Inch/ Space Gray Aluminium

6 Inch/ Space Gray Aluminium

25 inches in length by 6

surface galvanized

The smallest pH pen with reliable testing performance for regular liquid e

AEDIKO 4pcs Relay Module DC 5V Relay Switch 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger auspowers_batchone 6 Inch/ Space Gray AluminiumAEDIKO 4pcs Relay Module DC 5V Relay Switch 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level Trigger 5V Relay Module Features: Trigger Current: 2 5mATrigger Voltage(LOW): 0 4VTrigger Voltage(HIGH): 4. 5 12VInsulation Resistance: 100M (500VDC)Power Indicator (Green), Relay Status Indicator (Red)User Friendly Interface Design. All Interfaces Can Be Connected Via Terminal Wiring Leads Directly Package Contents: 4x 1 Channel