Small error and high accuracy. Suitable for RC airplane, duct, propeller speed test of propeller. 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 5~10cm to start reading.
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Timing range: 1 minute to 99,999 minutes, with 1% accuracy. The actual color of the item may differ slightly from the pictures shown on this website due to factors such as the brightness of your monitor and light levels.
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Unit: RPM. Low battery indicator, LCD backlight display, automatic shutdown. Readings are displayed on a large, easy-to-read LCD screen. Display: LCD Backlight. Size: 55.0x33.0x157.8mm. 1 Rubber Tip for Linear Surface Speed.
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Test range: 2.5RPM ~ 99,999RPM(RPM). Resolution: 0.1RPM (2.5 ~ 999.9RPM) 1RPM (1000RPM or more).
eBay
Unit: RPM. Low battery indicator, LCD backlight display, automatic shutdown. Readings are displayed on a large, easy-to-read LCD screen. Display: LCD Backlight. Size: 55.0x33.0x157.8mm. 1 Rubber Tip for Linear Surface Speed.
eBay
Resolution: 0.1 RPM, at 2.5 to 999.9 RPM; 1 RPM, at 1000 to 99,999 RPM. LCD display white backlight. Low battery display. 3 x 20cm Reflective Tape. 1 x Carry Pouch. We strive for 5-star service by stating upfront our policies and will try our best to solve the problems you have.
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Resolution: 0.1RPM (0.5 ~ 999.9 RPM) / 1RPM(above 19999RPM). Large LCD screen display for clear reading with low battery indication and auto power off function. Function: MAX. Value, MIN. Value, Average Value, the Last Displayed Value, Low Battery Indication, Automatic Power off.
eBay
Unit: RPM. We specialize in photograghy,PC,Apple accessories. -- Low battery indicator, LCD backlight display, automatic shutdown. -- Readings are displayed on a large, easy-to-read LCD screen. Display: LCD Backlight.
eBay