Abstract: A golf green measuring device according to the present invention includes a plurality of spaced apart rails attached to an enclosed structure. The structure includes a control unit including a microcontroller, circuitry, a battery, a display and a level indicator. The rails include infrared emitters and detectors that sense a golf ball traveling through the enclosed structure. The microcontroller measures the elapsed time the golf ball travels between a pair of detectors disposed at the rail front end and the elapsed time the golf ball travels between another pair of detectors disposed at the rail rear end. The change in velocity or deceleration of the golf ball is determined based on the measured time intervals and converted into a speed value. The computed speed value is displayed on a device display. The device may include an optional printer to provide a hardcopy of the measurement.

Abstract: A monitor system for ensuring that passengers have exited a vehicle such as a school bus is activated when the ignition of the vehicle is shut off. A buzzer sounds in response to ignition shut off, alerting the driver to disable the alarm system. If he does not do so within a predetermined period of time an alarm is actuated. A switch for disabling the alarm system is located at the rear of the bus to require the driver to walk to the rear of the bus to disable the alarm. This, in turn, requires the driver to observe whether or not any children remain in the bus.