G.T.Power Rc Speed RPM Measuring meter Velometer ,Spinning propeller 2-9 Propeller RC Helicopter Airplane Car F01973 Category_Landing Gear 8 Flight Controller GPS Compass

8 Flight Controller GPS Compass with AT9S Transmitter No Gimbal

4Ghz 10CH RC Transmitter with R10D Receiver PRM-01 Voltage Return Module 12 pcs 3

The module is perfectly compatible with FrSky new ACCESS radios like Taranis X-Lite PRO and X9 Lite

using centimeter and inch inch scale

G.T.Power Rc Speed RPM Measuring meter Velometer ,Spinning propeller 2-9 Propeller RC Helicopter Airplane Car F01973 Category_Landing Gear 8 Flight Controller GPS CompassRM1641845738474258 Description Function: To measure RPM of a spinning propeller,2 9 blades ones,memorize peak RPM datas. Peak RPM value up to 99999 per minute Features Sharp backlit LCD screen,applicable under poor light condition. 220 mah removable lithium button battery included. Compact & extremely portable. Automatucally shutoff when singals are not detected within a minute. Weight: 39g Dimension: 90*54*16mm Operation instruction 1)Press