The PL-1003 is a delay-off timer board for 12VDC systems. From the moment power is applied, it arms the onboard relay and starts counting the time you set with the linear potentiometer. When the time elapses, the relay disarms.

This lets you convert a fixed supply output into a timed Trigger output for as long as you wish — for example, taking a PGM or siren output and driving an additional load such as a floodlight for a different duration. The board includes reverse polarity protection and measures 4.5 x 1.8 cm.

Key Features

• Delay-off timer with adjustable range 0-4 minutes
• Linear potentiometer for setting the timer interval
• Onboard relay arms on power-up and disarms when the time elapses
• Reverse polarity connection protection
• 12VDC power supply
• Compact 4.5 x 1.8 cm board

Product Benefits

• Turns a fixed power output into a precisely timed Trigger output
• Useful for alarm setups that need two different timings — e.g. a siren for 2 minutes and a floodlight staying on for 4 minutes
• Linear potentiometer gives smooth, predictable time adjustment
• Reverse polarity protection guards against wiring mistakes
• Compact board fits inside alarm panels and small enclosures

Technical Specifications

• Model: PL-1003
• Function: Delay Timer Off
• Time Range: 0 ~ 4 minutes
• Adjustment: Linear potentiometer
• Output: Onboard relay
• Protection: Reverse polarity connection
• Power Supply: 12VDC
• Dimensions: 4.5 x 1.8 cm

Why You'll Love It

• Example application: set the alarm siren sound time to 4 minutes, drive the siren through the timer for 2 minutes — the siren sounds for 2 minutes while the floodlight stays on for 4 minutes; when the siren time ends the timer is reset
• A simple way to add a second, independent on-time to existing alarm or automation outputs
• Linear potentiometer makes setup a matter of turning one knob
• Package includes 1x PL-1003 Delay Timer Off 0-4 minutes 12V