Unlike most compact alarms on the market today, it's a constant monitoring alarm & not a "push to test" type.
Suitable for heating oil, diesel & biodiesel blends up to B100.
Compact design for use in confined spaces, 90mm square.
High power alarm sounder, 97dB at 1m.
Flashing light on top of unit.
Mute button stops the sounder, but alarm light still flashes.
2 year battery lifr, if tested weekly with no alarms.