ZMR GPS Speed Detector Speedometer Built-in LiPo Battery for RC Model Airplane

Overview The product is based on GPS module data mainly used for outdoor moving objects piggybacked speed measurement wide range of application scenarios simple operation easy to use Specifications Brand Name ZMRItem Name GPS Speed Detector SpeedometerSize 67x33x21mmWeight 43 5gFeatures 1 This product has built in 150mAh lithium battery full charge can be used continuously for 4 hours 2 This product can provide you with the following data ① The fastest speed data will be locked ② Real time speed real time update ③ The number of GPS satellites④ The number of GPS messagesUse Method 1 The speedometer placed in the test object installed firmly GPS module up and can not have metal objects to block turn on the power switch wait for the GPS star search when the number of satellites reached 7 or more that can start speed measurement When the number of satellites reaches 7 or more you can start to measure the speed The first time you search for a new place you need to wait for more than 3 minutes The more the number of satellites the more accurate the test data 2 The product is equipped with type c charging interface red light on when charging blue light on when fully charged 3 About the use of the reset button There are two methods of data reset as follows This product does not have data storage function when the second speed measurement need to reset the data based on the characteristics of the GPS will appear data drift and other phenomena the da