Welcome to DNF Alarms,

This site is the home of the 'Jacking Leg Alarm' and the 'Thief Detector' range of alarms.

Our 'Thief Detector' range covers caravans, marine craft, motorhomes, sheds, garages and trades vehilcles.

All of our alarms have been awarded 'SOLD SECURE' tested to reduce crime, and to provide you with the best in security. Sold Secure and is recognised by Insurance companies, Police and the Home Office.

DNF Alarms Ltd. was forned by Peter Dunmore & Mike Freeman. The Jacking Leg Alarm & Thief Detector Alarm were designed By Peter Dunmore.

Peter Dunmore: Specialising in engineering & injection moulding since the 1960's

Mike Freeman: A sales & injection moulding specialist for the past 40 years.

GUARANTEE : All alarms are guaranteed against defect in materials and workmanship in normal use for a period of 5 years from date of purchase.

This guarantee is only valid if the alarm has not been altered, modified or repaired by anyone other than the manufacturer, and is also invalidated where a replacement battery has been incorrectly fitted.

You can have these alarm set while you are asleep or working. If the alarm is activated the siren is in excess 120 decibels an intruder does not want the attention. That is why it works!!

Powered by a heavy duty 9 Volt battery (Battery Included.)