The APEXI Auto Timer features a compact interface design (4x 3/4 x 5/8 inches, shown in actual size below) with a separate control unit that can be hidden away underneath the dash.

The APEXI auto Timer is also the first timer with an intergrated air-fuel ratio monitor.

The APEXI auto timer unit reads the O2 sensor signal from the ECU and extrapolates an air-fuel ratio value.

The APEXI Auto Timer can detect the engine load before shutdown and adjusts the idle time accordingly.

Finally, the APEXI Auto Timer has a safety/ security feature that immediately shuts down the engine when the parking brake is released.