OEM DTI Gas Engine Digital Tachometer/Hour Meter Gauge Tool for Stens 750-920, 750920

Design Technology Inc. Tiny-Tach Tachometer/Hour Meter Specs - Maximum RPM Capacity: 19,990 with 1/2 second update time. Battery Type: Lithium (life 5+ years, not replaceable). Resettable Job Timer. Non-resettable Total Hours. Standard Cable Length: 6'. Refer to images 2 & 3 for more information Includes - (1) Tiny-Tach Digital Tachometer/Hour Meter & (1) Instruction Sheet; comes as shown in the first image Fits/For most gas outboard marine engines, most 1 or 2 cylinder, 2 and 4 stroke small engines like Briggs & Stratton, Kohler, Toro, Honda and Lawnboy with 1 spark per revolution. Also works on engines with electronic ignition. Wiring CANNOT be extended with additional wiring Features - 2 in 1 Meter: Hour Meter (records total engine run time; not resettable) & Job Timer (can be reset to record run time for record keeping). RPM reading 1 spark revolution. Single coax cable to carry signal without EMF interference. 1 antenna cable winds around your spark plug wire to give you the RPM reading. Signal strength can be controlled by the antenna wire. Unit is potted to prevent damage from moisture and vibration