Counter, tachometer Frank W Murphy

ATS, ATA, ATHA, ATHS Tachometers and Tach/Hourmeters

The AT series tachometer is a rugged, transistorized instrument with solid-state circuitry for indication of engine revolutions per minute (RPM). It is equipped with a bracket for mounting into a standard 3-3/8 in. (86 mm) dash mounting hole.

The tachometer’s full 270° sweep of the pointer gives an accurate indication on a large easy–to–read scale. The dial can be illuminated for night reading.

ATA models sense engine speed in conjunction with an engine-driven charge alternator; ATS models work with a flywheel mounted magnetic pickup. ATHA and ATHS models are also equipped with a digital hourmeter to record the elapsed running time of an engine.

Features:
- Sensing from magnetic sensor (ATS, ATHS) or battery charging alternator (ATA, ATHA)
- High visibility analogue readout, 270° sweep
- Reliable air-core movement
- Easy calibration through dial lighting
- Powered by 12 VDC battery. Optional ATVC 24V to 12V converter.

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