Special Features:

For left eye test

Properties:

A switch that is externally actuated by a device such as a push rod or button, which requires pushing for each actuation. The action may be momentary, with mechanical return. The actuating device may or may not be an integral part of the switch. The item may include provisions for mounting indicating lamp(s) or light emitting diode(s) in the actuator. Includes items consisting of individually separable switches that are physically interlocked, that have a common actuator, or are electrically connected. Excludes light-switch; light-switch assembly; switch, beam selecting, headlight; switch, foot; switch, interlock; switch, pressure; switch, push-pull; switch, sensitive and switch assembly. For devices which start, stop, reverse, select and/or regulate the speed of a motor, see starter, motor and controller, motor.