Tbest RC Tachometer, Digital LED Handheld with Lanyard, Propeller Speed Tester for RC Airplane Drone Enthusiasts, Hobbyists and Professionals

Specification: Item Type: Led Handheld Tachometer Working Method: Photoelectric Highest Reading: 99999 Display Mode: LED Number of Test Leaves: 2-9 Automatic Shutdown: 1 Min Weight: Approx.69g/2.4oz Material: Plastic + Electronic Components Battery: 1 x CR2032 220mAh Replaceable Lithium Battery (Main Unit with Supporting Built-in Battery) Applicable to: RC Airplane, Duct, Propeller Speed Test of Propeller How to Use: 1. Easy to use. When the switch is turned on, select the number of blades on the propeller, the distance between the rotating propeller and the propeller is about 5~10cm. 2. You can start reading. After the measurement, the screen will display the maximum measurement value with a blue backlight, which is easier to read. PackageList: 1 x Handheld Tachometer 1 x Lanyard 1 x Battery Notice: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. The tachometer depends on the light source! In the absence of a light source! There is no response. For example, under the sun, your tachometer should be upright and the lens should be facing the direction of the light source.

• [Clear Led Display] : Features a clear led display with blue backlight to show maximum measured value for easy reading.
• [Portable Design] : Comes with a lanyard for easy carrying, allowing it to be conveniently hung when not in use.
• [ Material] : Made of premium plastic and electronic components for durability and long service life.
• [Accurate Speed Testing] : Provides small error and high accuracy for testing rc airplane, duct, and propeller speed.
• [Easy to Use] : Simply turn on the switch, select the number of propeller blades, and aim at the rotating propeller for quick readings.