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Murphy
Pressure & Vacuum
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Vibration - Time - Overspeed
Vibration Switches: VS and EVS Series
Timers: Mechanical
ATHA-30-12-A (20700183) Alternator Signal Tachometer/Hourmeter
ATHA-30-24-A (20700207) Alternator Signal Tachometer/Hourmeter
ATA-40 Alternator Signal Analog Tachometer
ATHA-40 (20700137) Alternator Signal Analog Tachometer/Hourmeter
ATHA-40-A (20700141) Alternator Signal Analog Tachometer/Hourmeter
ATHS-40 (20700142): Magnetic Sensor Analog Tachometer/Hourmeter
ATS-40 (20700227): Magnetic Sensor Analog Tachometer
MTH6-1 (20700158): Digital Tachometer and Hourmeter
SHD30 (20700196): Digital Tachometer and Hourmeter
Hourmeters
Electronic Speed Switches
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MurCal's Toolbox


MT90-1 (20700019): Digital Tachometer
MT90-1(240).jpg The Murphy Selectronic® MT90-1 is a digital tachometer. Its high accuracy and dependability result from use of a quartz crystal time based and digital, solid state electronics.

Tachometer power is supplied by either a Murphy magnetic pickup, mounted at the flywheel ring-gear of an engine, or by a 12, 24, or 32 volt DC battery system.

RPM data is supplied by either a Murphy magnetic pickup or by the alternator in your battery charging circuit. The MT90 also has back-lighting for easy readings in low lit areas; this lighting requires a battery power source.

Sales Bulletin & Installation Instructions
Price: $282.00

 
 
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