12V 1-Channel Digital Countdown Delay Relay Module is a precision timer relay with a built-in LED countdown display, providing adjustable time delays from 0 to 999 seconds with 0.01% per second accuracy. Featuring opto-isolated output, power-down memory function, and two selectable operating modes, it’s a versatile solution for timed switching, delayed power control, and automatic shutdown applications across industrial, automotive, and maker projects.
Key Features:
- Digital LED countdown display — real-time visual delay countdown
- 0–999 second adjustable delay — wide range for diverse applications
- 0.01% accuracy per second — precision timing for critical applications
- Power-down memory — retains delay setting after power loss
- Opto-isolated output — enhanced noise immunity and stability
- High-current voltage regulator chip — stable operation under load
- Two operating modes — delay OFF and delay ON selectable
- Low-power display mode — press left button to turn off LED display
- Compact 51×31mm PCB — easy panel or enclosure mounting
- AC250V/10A and DC30V/10A load ratings — handles mains and DC loads
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