Digital display stores, recalls & displays highest level of co detected. No installation required, can be placed anywhere. Test button. silence button for unwanted alarm & for low battery warning signal. Low battery warning signal. easy battery replacement (compartment on the front). User-friendly action chart detailing what to do in case of alarm. Led for power, service & alarm. easy to install with 2xaa battery (with a minimum of 1 year life) & fittings included. loud 85 decibel alarm. ...

Colour change gives visual indication of the presence of carbon monoxide. Can be used as an initial test before purchasing an alarm. Chemical process, no battery required. easy installation. sticky pad included. Must be renewed every 4 months or when there is a colour change. Must be checked regularly as there is no audible warning. ...

Standard multi-purpose square for use as outside & inside try square, mitre square, depth & marking gauge, stainless steel rule, straight edge, spirit level giving horizontal 45 degree & plumb readings. The stock is a matt black rustless die-casting & is fitted with a scriber.
it is fully adjustable & lockable.
size 12in/300mm steel blade.

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Heavy-duty combination square for use as outside & inside try square, mitre square, depth & marking gauge, steel rule, straight edge, spirit level giving horizontal 45 degree & plumb readings. Its cast iron stock is matt black, fitted with a scriber & has ground faces for extra precision.
size. 12in/300mm.
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