Tachometer (red), 2-9 blades, RPM 0-999999, peak RPM, back lit LCD screen, auto off, 39g, 90x54x16mm, by GT Power

Take the guessing work out of your Prop and Motor Combos, know whats going on with your setup.

Ever wanted to know how fast your motor is spinning? Wished you could better select the right propeller for your motor?

Now you can more accurately tune and performance test your engine, motor, edf or heli with the GT-Power tachometer.Specifications

• Measures 2 to 9 Propellers
• Very Easy to Use
• RPM Range: 0 - 99,999RPM
• Ultra sharp backlit LCD
• Spare battery included
• Auto shut-off when not in use. (no more flat batteries)
• Weight: 39grams