Projecta BM500 vs SF Drone

TBB'battery monitor kit is composed by a battery shunt and a monitor which allow the user to fully understand his/her battery. Here is some quick facts of this kit: 1) Measurement current is up to 500A 2) Is able to work with battery (or battery bank) 12Vdc, 24Vdc or 48Vdc 3) Compatible with AGM, GEL or LFP battery 4) An elegant design monitor to display battery information such as current, voltage, SOC, time remaining etc. 5) The monitor could be installed at any location where with easy access to users 6) Measurement accuracy: Current: +/- 0.4% Voltage: +/- 0.3%

SF Drone APP can receive video data of toy drones and save pictures and videos. At the same time, it can also control the flight state of the drone by sending data to the toy drone. The APP provides two flight control modes, remote control mode and programming mode. In remote control mode, you can slide the ball in the middle of the remote control with your finger to change the flight of the toy. The combination of flight direction and flight time can be selected in the programming mode, which provides more flight fun.