Wireless safety system for Gate Opening Apparatus

A wireless safety system for a gate opening apparatus for a door gate, comprising:

• a main housing;
• a transmitter unit supported in said main housing and arranged to emit optical signal at a predetermined direction;
• a reflection device mounted at a distance from said transmitter unit and optically communicated with said transmitter unit;
• a receiver unit supported in said main housing and arranged to receive optical signal reflected from said reflection device;
• and
• an positioning device, which comprises an light emitter mounted in said main housing at a position adjacent to said transmitter unit, said light emitter being arranged to emit positioning light beam at a same direction as that of said optical signal emitted from said transmitter unit, said positioning light beam being arranged to produce a colored indication on a targeted object as a proper position of said reflection device, whereby a user is able to mount said reflection device on said targeted object for properly and optically communicating with said transmitter unit.