Frank W. Murphy MT90 Selectronic® Digital Tachometer

• Offers high accuracy and dependability resulting from use of a quartz crystal time based and digital, solid-state electronics.
• Back light for night viewing.
• Easy calibration.
• Power supplied by magnetic pickup or 12, 24 or
32V DC battery system.
• Input source can be a magnetic pickup or engine alternator.
• Dial diameter: 3-5/8”.
• Mounting hole: 3-7/16”.