The Low Coolant Level Alarm Kit will monitor your engine’s coolant level and will immediately alert the driver should a low coolant situation develop. This cool digital monitor, which can be simply mounted in the driver’s compartment, boasts three (3) choices of audible alarm patterns and the facility to trigger louder external alarms such as your car horn!

The Inline Sensor Adaptor simply fits into your engine’s top radiator hose. The adaptor ends for hose fitting are 35mm in size.

  • With the use of our 3mm adaptor sleeve (Included in kit), this can be increased to 38mm (Part 8510)
  • With the use of our 6mm adaptor sleeve (Optional), this can be increased to 41-42mm (Part 8511)

The thread (Hole) on this Inline Temp Sensor Adaptor is 1/4" NPT

Features & Benefits

  • A cost-effective, efficient low coolant early warning protection device not supplied as standard equipment by vehicle manufacturers.
  • Accurately monitors coolant level in any engine with an electronic coolant surge delay built in to the module to help prevent false alarms.
  • Nylon Inline Sensor Adaptor which won’t produce electrolysis.
  • Conventional engine temperature gauges do not have audible alarms and may not detect initial coolant loss. A split radiator, radiator or heater hose will cause sudden coolant loss, engine temperature rapidly rises which may cause extensive engine damage. In some cases the gauge may drop, not rise when a sudden coolant loss is experienced.
  • The Low Coolant Level Alarm Kit is covered by Davies Craig’s 2-Year written warranty.
Operating voltage 12V or 24V DC
Display Type
  • 4 x LED Lights
  • Power On Indicator
  • Buzzer On indicator
  • Fan On/Off indicator, Remote mount LED
Fan Operation Monitor Yes - LED On/Off
Audible Alarm Yes - 3 Buzzer Rhythms. Single, double or triple beep.
Coolant level Sensor (Nylon) Yes - With electronic collant Surge Delay
External Device activation / Deactivation Yes - Can Control an External Relay To Activate or Deactivate Ignition or External Car Alarm.
Start Up Yes - Flash LED and Alarm at Every Set-up
Pressure Rating 35 PSI
Compact Electronic Alarm Module – Dimensions, 120 mm x 80 mm x 25 mm 1
Mounting Pad 1
Nylon Inline Sensor Adaptor 35mm 1
Wiring Loom 3 pins 1
Wiring Loom 8 pins 1
Adapter Rubber Sleeve 3mm 2
Hose Clamp 2
Hook & Loop Mounting Adhesive 1