G.T.POWER RC Micro Digital Tachometer LCD for 2-9 Blade

G.T.POWER RC Micro Digital Tachometer LCD for 2-9 BladeDescription:Weight: 39gDimension: 90x54x16mmManufacturers ID: GTPRPMWorking Way: photo electricityMax.Indication: 99999Display: LEDBlade: 2-9Auto Turn Off: no signal for 1minBacklight Color: blueBattery: 220mah replaceable lithium batteryFunction:To measure RPM of a spinning propeller,2-9 blades ones,memorize peak RPM datas.Feature:1.Compact and extremely portable2.220 mah removable lithium button battery included3.Sharp backlit LCD screen. Viewable even under poor light condition4.Automatically shutoff when signals are not detected within one minutePackage Included:1 x G.T.POWER RC Micro Digital Tachometer LCD for 2-9 Blade