The Rotor-1 dual rotor / engine tachometer is a 3 1/8” instrument providing two universal RPM inputs that is primarily intended to measure rotor and engine RPM. Typical uses are rotor / engine RPM displays for helicopters and gyroplanes.

The Rotor-1 displays rotor and engine RPM in a digital readout as well as in a traditional scalable analog needle display. In addition the Rotor-1 provides a 24 entry automatic flight log that stores the duration of each of the last 24 flights. It also has a Hobbs meter (can be set to the current engine time) which is password protected, an engine running timer/flight timer and a programmable maintenance timer to schedule routine engine maintenance.

The Rotor-1 also features a programmable rotor and engine RPM low / high alarm as well as it records the maximum RPM values reached in permanent memory.

Download ROTOR-1 Manual (PDF)

MGL Offers a Three-Year Warranty

MGL Avionics offers a three-year limited warranty on all EFIS and single-instrument products in its product line. This warranty also applies to instruments purchased prior to thier announcement.
All MGL products are covered for three years against manufacturing or product defects, and the units will be repaired or replaced as necessary at no charge. One exclusion is the LCD screen, which, if damaged by the customer, will not be replaced free of charge.