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Surveillance Accessory Type
Surveillance Adapters
Signal Enhancer Type
Signal Booster
LED Feedback
12V DC
24V DC
Ease of Installation
Intermediate (Installs < 60 minutes)
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Overcome the Loss of Voltage over Long Power Cable Runs to a Surveillance Camera
Enforcer Voltage Booster (500mA)
SECO-LARM Enforcer ST-HB105-TTQ Voltage Booster (500mA)
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Sample Wiring Diagram
SECO-LARM Enforcer ST-HB105-TTQ Voltage Booster (500mA)
Item# 77420
Price: Normally $29.99 
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  • Compensate DC voltage drops over long cable run
  • Selectable 12 or 24 VDC output via jumper
  • Dual-color LED power output indicator
  • Built-in overload and short-circuit protection

Essential Info

For security installations that require long runs between a monitor or DVR and the surveillance cameras, often times the cameras may fail or stop working completely as a result of DC voltage (power) loss to the camera. The SECO-LARM Enforcer Voltage Booster overcomes this issue, by adding up to 500mA of power to a wire that doesn't have enough gauge (wire thickness) to maintain the correct voltage over a long run. A typical application requires running 12VDC to a camera located 300 feet from the power source. The maximum wiring distance for 12VDC@250mA would normally be approximately 90 feet. After 90 feet the voltage will start to drop below 12VDC. Installing the SECO-LARM Enforcer Voltage Booster at the camera end of long wiring runs can greatly increase the maximum wiring distance. This device will work with both 12VDC and 24VDC installations. Built-in LED indicator light let you know what voltage you are working with and whether input power is connected. As an added feature this device also has built-in overload and short circuit protection.


What's Included

  • 1x - SECO-LARM Enforcer Voltage Booster (500mA)

  • 1x - Owner's Manual
  • Specifications


    Manufacturer Product No.:ST-HB105-TTQ
    Output Voltage:12 or 24 VDC, selectable by jumper
    Input Voltage:7~12 VDC for 12 VDC; 12~24 VDC for 24 VDC
    Maximum Output Current:500mA
    LED Indicators:Power input LED (green); Power output LED (red for 12 VDC, blue for 24 VDC)
    Current Protection:PTC (Positive Temperature Coefficient)
    Connector:Terminal blocks
    Overload Protection:Built-in
    Short Circuit Protection:Built-in
    Dimensions:3-3/16 inches x 2-9/16 inches x 25/32 inches (81 millimeters x 65 millimeters x 20 millimeters)
    Warranty:Manufacturer 1-year limited warranty

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: SECO-LARM USA Inc, Tel: (949) 261-2999


    Sample Wiring Diagram       
    Sample Wiring Diagram       


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