The MicroTach

The DSS MicroTach^TM provides a simple inexpensive means of obtaining an accurate digital readout of helicopter main rotor RPM.

MicroTach Features

• Small Size - 2.6 x 1.5 x 4 inches
• Light weight - 9 oz. (255gm)
• Doesn't use aircraft power
• Display:  4 1/2 digit LCD
• Display height: .4 inch (10mm) high characters
• Display resolution of .1 RPM
• Display range 100 - 1999.9 RPM
• Update rate: twice per second
• Automatic activation when rotor begins turning
• Automatic shutoff when tach signal ends
• Uses industry standard magnetic pickup
• Internal 9v battery lasts over 300 hours
• Built-in low battery indicator flashes during last 30-50 hours of battery life.