In the past, Silicon Chip has described an array of digital instruments for use in cars. These include a Speed Alert (with speedometer), a Tachometer, a Voltmeter, a Thermometer, an Ammeter and an Air/Fuel Mixture Display. However, that line-up by no means exhausts the potential for other digital readouts in a car.

For example, most cars have analog readouts for displaying fuel level and engine temperature. Similarly, the oil pressure is either shown on an analog gauge or more commonly, there's no gauge and just an "idiot" warning light instead.

Of course, there's nothing wrong with analog gauges - it's just that some drivers would rather have these outputs displayed in digital format instead.

That's where this Digital Instrument Display comes in - it's designed to operate with any sensor or sender unit which varies its resistance or voltage signal output and display the result on a 3-digit LED readout. Basically, it's ideal for use with sender units that have relatively slow changing values; eg, as found in fuel level, oil pressure and temperature gauges.

Main Features Suitable for connection to variable resistance or voltage output sensors. Programmable display values; shows readout on a 3-digit LED display. Alarm output signal with visual alarm output indication at righthand decimal point. Adjustable alarm level. Can be set to alarm either above or below set value (optional). Displays values from 999 maximum to -99 minimum. Decimal point selection at x.xx or xx.x position (optional). Automatic display dimming in low light levels. 2-second display update period.