Historical information

Created prior to the Mowat-Wormald development, this prototype emits a beam of ultrasonic sound that detects reflection from objects and obstacles as well as vibrate when the object is within range. The rate of vibration increases the distance reduces and was designed to be used in conjunction with other mobility aids such as a cane or a dog. With a simple toggle switch, it could be operated easily or stored safely away due to it's compact size.

Physical description

A small black rectangular metal container with mesh on one aend and a switch and tuning dial on the other end.

Inscriptions & markings

Model MS01