Feel safer in your home with this door and window sensor which notifies you when it senses movement using sound text or light. It can also be used for switching on/off connected devices when entering or leaving a room. Operate using the intuitive Calex...

Incredibly strong with highly accurate, UV-resistant and magnified dual Easy View vials calibrated to 0.5mm/m (0.005"). Strong aluminium profile is fine-milled on top and bottom edges for precision. Continuous bridge over central vial to allow accurate...