This handy bundle contains a Drummond MTL20 test lamp and a PD440 proving device. The PD440 proving device can be used to verify the correct functioning of the MTL20 test lamp in compliance with Health & Safety recommendations. It can also be used to check Drummond and other filament test lamps as well as standard multimeters and other manufacturers two-pole voltage indicators. * Contains a Drummond MTL20 test lamp and a PD440 proving device * Can be used to verify the functioning of the test lamp * Drummond type MTL20PD https://elecena.pl/product/27245399/drummond-mtl20pd-s-test-lamp-and-proving-device 2024-11-12 https://elecena.pl/product/27245399/drummond-mtl20pd-s-test-lamp-and-proving-device 2026-07-14