GT Power Professional Tachometer for 2-9 Blades Prop with Strap

Specifications:

• Working Way: photo electricity
• Max. Indication: 99999
• Display: LED
• Blade: 2-9
• Auto Turn Off: no signal for 1min
• Backlight Color: blue
• Battery: 220mah replaceable lithium battery
• Weight: 39g
• 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 LED 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 LED 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.