2X -521 Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module

2X -521 Digital Time Delay Relay Trigger Cycle Timer Delay Switch Circuit Board Timing Control Module

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Description
All setup parameters are saved automatically power down. Operating voltage: 6--30V support -USB 5.0V power supply The trigger source: high trigger (3.0V-24V) signal with no common ground system to improve anti-jamming capability of the system (also...
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