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.
eBay
Portable Handheld Cleaning Mop Mini Portable Foldable Super Absorbent Mop For Desktop Floor Bathroom Kitchen Glass Car Cleaning
Aliexpress UK
Surface Velocity Resolution: 0.01 (1-99.99); 0.1(100~999.9); 1(1000-99,999). Rotation Speed Resolution (RPM): 0.01(1-99.99); 0.1(100-999.9); 1(1000-99,999). Speed And Frequency Accuracy: ±(0.02% reading +1 word).
eBay
SZUK Mini Car Vacuum Cleaner 985000Pa Strong Suction Cleaning Machine Powerful Wireless Handheld Portable Vacuum Cleaner for Car
Aliexpress UK
Display: 5 Digit, 18mm LCD. Accuracy: ±(0.05%+1 Digit). If you do not receive our reply within 48 hours, pls. If you are satisfied with our service, pls. 2.5-99999RPM (). Resolution: 0.1RPM (Exceeding 1000RPM).
eBay
SZUK Mini Car Vacuum Cleaner 985000Pa Wireless Handheld Cleaner Cleaning Machine Strong Powerful Portable Vacuum Cleaner Car
Aliexpress UK
Effective Distance (): 50-500mm. Effective Distance (LED): 50-250mm. Model: DT2236B. Screen: 5 digit large LCD display, with a word height of 18mm. Sampling Rate: 0.8 seconds (above 60 rpm). If you do not receive our reply within 48 hours, pls.
eBay
Xiaomi 2990000PA Wireless Car Vacuum Portabale Cleaner 4 In1 Handheld Auto Suction Powerful Vacuum Cleaner For Home Car Office
Aliexpress UK
Product Model: 6236P. 0.1rpm (2.5-999.99RPM). 0.1rpm (0.5-999.99RPM). 10-99999 RPM photoelectric speed. Range Selection: Automatic range. Photoelectric Rotation Speed 3 x Adhesive Tape. 1 x Storage Bag.
eBay
T-shaped Massager Acupressure Massager Thumb Finger Press Trigger Point Manual Relaxed Whole Body Deep HandHeld Reflexology Tool
Aliexpress UK
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.
eBay
Handheld Pool Vacuum Cleaner Set ABS Portable Efficient Deep Cleaning Swimming Pool Cleaner for Pools Hot Tubs and Spas
Aliexpress UK
Product Model: 6236P. Accuracy: ± (0.05% + 5). 3 x Adhesive Tape. Power Consumption: Less than 40mA. 1 x Storage Bag. 4 x Accessories. Photoelectric Rotation Speed 0.01m/min (0.05-99.999m/min).
eBay
Portable Handheld Cleaning Mop Mini Foldable Desktop Mop Home Replacement for Bathroom Kitchen Desktop Glass Living Room Car
Aliexpress UK
With technology to targeting, you can get more accurate data. It can be widely used in the field of motor, electrical fan, paper making, plastic industry, chemical fiber, washing machines, car making etc.
eBay
Cordless Vacuum Cleaner Portable Handheld Dust Blower Floor Car Pet Hair Multifunction Cleaning Tools For Makita 18V Battery Pin
Aliexpress UK