Specifications:

²  Working Way: photo electricity

²  Max. Indication: 99999

²  Display: LCD

²  Blade: 2-9

²  Auto Turn Off: no signal for 1min

²  Backlight Color: blue

²  Battery: 220mah replaceable lithium battery

²  Weight: 39g

²  Dimension: 90*54*16mm

Functions:

-To measure RPM of a spinning propeller, 2-9 blades ones, memorize peak RPM data.

-Peak RPM value up to 99999 per minute

Features:

-Sharp backlight LCD screen, applicable under poor light condition.

-220mah removable lithium button battery included

-Compact and extremely portable

-Automatically shut off when signals are not detected within a minute.

Operation Instruction:

-Press “Power” button for 1 second to power on/off

-Press “SET” button to set the relevant propeller blades

-Real time RPM value shown when you make the RPM sensor point to the blades within 5-10cm measurement is finished

-Backlit LCD is on/off when press “SET” button for 3 seconds uninterruptedly.

-It’s normal to see the value floating during measuring, so please keep the tachometer and object stable for the precision.