#3508-E Digi Tachometer

1. It looks fancy and compact in size. Very handy to use.

2. It measures from 2 to 9 blades prop rpm.

3. It shows 4 digits in a 0 ~ 99,999 rpm range from ten position.

4. It comes with a replaceable 3V LITHIUM battery.

5. There is an auto shut-off function after five minutes when no signal received.

6. When the LOW BATTERY icon is on, the battery needs to be replaced.

7. It needs a little electronic power (20μA) when the tachometer is not in use. This depends on battery's capacity for life of battery.