A telescopic test magnet and LED torch available from Pertronic is great for testing smoke and heat detectors. The LED light makes it easier to see the moulded circle showing the magnetic test switch location on a System Sensor detector.
The light also comes in handy when using the magnet to pick up small hardware or tools.
The light is activated by twisting the knurled magnet housing. It is powered by three LR44 alkaline button cells (available from most supermarkets).
Supplied complete with batteries, the TESTMAG measures 200 mm when closed, and 790 mm fully extended.