DROK 12V Timer Relay LED Display 4-Mode, 0.1s–999min Automotive Time Delay Switch

DROK 12V Timer Relay is an LED-display, four-mode on/off delay switch for automotive and industrial use with timing from 0.1 seconds to 999 minutes.

This compact electronic timer relay combines a clear LED readout, simple button controls, and broad compatibility with common trigger sources (positive power, buttons, PNP sensors, PLC signals). Designed to save your configured settings automatically and to resist electrical interference, it is useful for lighting holdoffs, motor cycling, automation sequences, and delayed shutdowns where precise timing and a compact footprint matter.

How do I choose the right timing mode for my project?

Pick the mode based on whether you need the relay to switch on then off, hold on after the trigger, or behave in latch-style operation. Each of the four modes maps to common control patterns found in automotive and small automation systems, so match the mode to the desired on/off timing behavior.

• Mode A: immediate output on trigger, then off after set delay
• Mode B: delayed turn-on after trigger, then stays on
• Mode C: single pulse or latch pattern depending on wiring
• Mode D: custom on/off timing for cyclic or safety applications

What timing range and resolution can I expect?

The DROK relay covers a wide span from very short pulses to long delays, letting you dial in fine or coarse intervals for diverse tasks. Use short settings for debounce or pulse generation and long settings for extended holdoffs or shutdown delays.

• Minimum: 0.1 seconds for fine control or pulse triggering
• Maximum: 999 minutes for multi-hour delays
• Adjustable increment suitable for both seconds and minutes
• Visible LED display shows current set value for accurate setup

How does the DROK relay handle electrical noise and saved settings?

The module uses opto-isolated output circuitry to reduce susceptibility to voltage spikes and electromagnetic interference, improving reliability in noisy automotive or industrial environments. After you program the timing and mode, the device retains those parameters without needing constant power.

• Optocoupler isolation on the output for stronger anti-interference
• Stable operation with common trigger sources (PNP sensors, PLCs, buttons)
• Automatic parameter save — no need to reconfigure after power loss
• LED display confirms settings at a glance during setup

How simple is the installation and user interface?

Installation and operation are suited for hobbyists and technicians alike: basic wiring to 12V supply and the chosen trigger, plus a few buttons to set mode and delay. The front panel LED and tactile buttons provide straightforward feedback while configuring the relays.

• Button-driven setup — no programming tools required
• Clear LED readout for quick verification of values
• Compatible with common automotive 12V systems
• Compact board form factor fits tight spaces

Who is this for: The DROK 12V Timer Relay suits electricians, automotive tinkerers, small-factory technicians, and DIY automation builders who need a reliable, programmable delay switch with a wide timing range. It is useful when you require visible settings, saved parameters after power loss, and improved immunity to interference without a large or complex control system.