Read the RPM of Nitro, gas, and electric motors from audio frequency at distances in excess of 100 yards!
Uses no optical or contact sensors!
- Useable range from 3,000 to 50,000 rpm.
- Works with Nitro, Gas, and Electric motors.
- Use on cars, boats, planes & helicopters.
- Self-contained, uses standard 9-volt battery.
- Accurate to within 1,000 rpm.
- Trigger control with large, bright LED display.
- Use for distances in excess of 100 yards.