Handheld Propeller Speed Tester Small RC Digital Tachometer Digital With Battery

Features:
Made of high quality plastic and electronic components material, sturdy, durable and long service life.
Small error and high accuracy. Suitable for RC airplane, duct, propeller speed test of propeller.
With a lanyard, it is light and easy to carry. It can be hung on a hook or a shelf without taking up space.
It is easy to use, just turn on the switch, select the number of propeller blades, and aim at the rotating propeller at a distance of about 5~0cm to start reading.
The LED display reading is clearer, and the screen will display the maximum measured value with a blue backlight for easy reading.

Specifications:
Item Type: Led Handheld Tachometer
Working Method: Photoelectric
Highest Reading: 99999
Display Mode: LED
Number of Test Leaves: 2-9
Automatic Shutdown: Min
Weight: Approx.69g/2.4oz
Material: Plastic + Electronic Components
Battery: x CR2032 220mAh Replaceable Lithium Battery (Main Unit with Supporting Built-in Battery)
Applicable to: RC Airplane, Duct, Propeller Speed Test of Propeller

Package includes:
1 x Handheld Tachometer
1 x Lanyard
1 x Battery