KEYCHAIN PROXIMITY KEY TAG
$6.50
This ultrasonic proximity tag comes attached to a keychain and is supplied with a pre-assigned unique code. Range: 5cm-10cm (1.97″-3.94″) Waterproof Shock proof Uses ultrasonic connection Each tag has a unique pre-assigned code (8 digit number) printed on the back Dimensions: 39mm x 35mm x 7mm (1.54″ x 1.38″ x 0.28″).
