This is your classic wall or window mounted contact closure sensor. These units are small, about 1 inch long. About 1/3 the volume of what you are thinking of. They have solder tails, and not screw mounts Double sided sticky tape to mount on anything. Very reliable. Very common unit. Comes in white. leads about 12 inches long Dimensions: 33.8.8 mm. magnet, sensor, same size, 2 wire. snap off screw mount tabs to use as only sticky tape mount, works ok, but not for places of motion. Sticky tape mount holds very well, but do not disturb, must have total contact on surfacePricing:
1-6 7+
$C 2.97 2.95
$US 2.88 2.86
EURO 1.93 1.92
