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-To measure RPM of a spinnning propeller, 2-3 blades
-Peak RPM value up to 99999 per minute.
-Sharp backlit LCD screen, applicable under poor light condition.
-220 mah removable lithium button battery included.
-Compact&extremely portable.
-Automatically shutoff when signals are not detected within 1 mimute.

1. The most efficient gear drive for reliable fueling
2. Advanced pump unit design allows fast filling and drawing without leakage
3. Molded by fuel-proof Nylon with fiberglass filled
4. Three-position switch with safety guard
5. Includes filter, fuel nozzle, self-tapping screws, alligator clips/banana plugs

●New generation fuel pump with commpact size
●Double injection, using TPR material that has a comfortable feel
●Improved gear mesh and make the large flow rate 18CC/sec
●Advanced pump unit design, glow fuels and gasoline are both compatible
●Includes filter, fuel nozzle, self-tapping screws and 19 inch silicone fuel tubing

Color may different from the picturer.