Global Digital Instruments LLC Tachometer w/Hour Meter, Job Timer and Service Alarm FSA600

STS-5000 – Tachometer only that accurately displays up to 20,000 RPMs. Features programmable firing pattern for 1:1, 2:1, or 1:2 firing patterns. Max RPM recall stores the highest RPM registered until cleared by the user. Works on 1 and 2 cylinder applications. FS-500 – All the features of the STS-5000 but also includes a totalizing hour meter and resettable job timer. The FSA600 adds a programmable Flash Alert service alarm.