AVSG12B1 12V

Budget Tail-lift Protector

These units are designed for use with tail-lifts where it is required to simply cut the power to the control panel rather than to the motor. It monitors the voltage and when it reaches 10.8V (AVSG12B1) the built-in buzzer sounds for approximately 10 seconds, then this disconnects the control panel.

It will automatically reconnect when the voltage returns to 13V.




AVSG24B1 24V

Budget Tail-lift Protector

These units are designed for use with tail-lifts where it is required to simply cut the power to the control panel rather than to the motor. It monitors the voltage and when it reaches 21.7V (AVSG24B1) the built-in buzzer sounds for approximately 10 seconds, then this disconnects the control panel.

It will automatically reconnect when the voltage returns to 26V.




AVSG12SG1 12V
AVSG24SG1 24V

Stop your tail lift from flattening your battery!

The Amber Valley Start Guard gives peace of mind to vehicle fleet operators. It safeguards the voltage in the starting battery by eliminating the possibility of a tail lift, passenger lift or double deck trailer lift, discharging the starting battery to a level where the vehicle is left stranded.

The Start Guard constantly monitors the battery voltage. If the voltage drops below a predetermined level (sufficient to start the engine) the unit will tell the operator by means of a buzzer or a real speech alarm that they must restart the engine. If they do not restart the engine, the unit will cut the power to the tail lift. When the engine is restarted, the power is automatically restored when the battery reaches a predetermined voltage.

  • Latest generation battery protection
  • Quick and easy to install
  • Save costs on vehicle down time and flat batteries
  • “Battery low, please start engine” message or buzzer
  • Available in 12V and 24V
  • Operating temperature -40°C – 120°C
  • High peak current capability to 1800A
  • Continuous rating to 190A
  • Shock resistant to 40G
  • Automatic battery monitoring
  • Double latching technology
  • Solid State Electronics completely encapsulated against water, acid, oil and dust
  • OEM specified – 12V and 24V

Technical Specification

  AVSG12SG1 AVSG24SG1
Cut off voltage 11.7V 23.5V
Restart voltage 13.0V 26.0V
Quiescent current 3.0mA 3.0mA
Warning Current (max) 2.5A 2.5A
Delay to warning 1 min 1 min
Warning duration 7 secs 7 secs
Delay to off from warning 55 secs 55 secs
Buzzer Yes Yes



AVSG12SG2 12V
AVSG24SG2 24V

With speech alarm

Stop your tail lift from flattening your battery!

The Amber Valley Start Guard gives peace of mind to vehicle fleet operators. It safeguards the voltage in the starting battery by eliminating the possibility of a tail lift, passenger lift or double deck trailer lift, discharging the starting battery to a level where the vehicle is left stranded.

The Start Guard constantly monitors the battery voltage. If the voltage drops below a predetermined level (sufficient to start the engine) the unit will tell the operator by means of a buzzer or a real speech alarm that they must restart the engine. If they do not restart the engine, the unit will cut the power to the tail lift. When the engine is restarted, the power is automatically restored when the battery reaches a predetermined voltage.

  • Latest generation battery protection
  • Quick and easy to install
  • Save costs on vehicle down time and flat batteries
  • “Battery low, please start engine” message or buzzer
  • Available in 12V and 24V
  • Operating temperature -40°C – 120°C
  • High peak current capability to 1800A
  • Continuous rating to 190A
  • Shock resistant to 40G
  • Automatic battery monitoring
  • Double latching technology
  • Solid State Electronics completely encapsulated against water, acid, oil and dust
  • OEM specified – 12V and 24V

Technical Specification

  AVSG12SG1 AVSG24SG1
Cut off voltage 11.7V 23.5V
Restart voltage 13.0V 26.0V
Quiescent current 3.0mA 3.0mA
Warning Current (max) 2.5A 2.5A
Delay to warning 1 min 1 min
Warning duration 7 secs 7 secs
Delay to off from warning 55 secs 55 secs
Spoken warning Yes Yes





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