Olympia TF 400 door/window contact set with alarm (4 pieces) to secure doors, windows, roof hatches, etc. - siren volume 90 dB, scares off uninvited guests - magnetic contact technology, easy mounting with adhesive strips - battery operated LR44 (included) - With on/off switch (5971)
The Olympia brand TF 400 door window contacts set of 4 item is 40 x 60 x 20 mm (W x D x H), is white, is 140 g and has the dimensions of height 60mm x width 40mm x depth 20mm. Item requires 3 battery (s)