Hobbyshop247 2-3S Li-Po Low Voltage AlarmThis device can be used as a battery tester, or installed in your electric plane and used as a 2-3S Li-Po alarm. It features two rows of LEDs, one green, the other red, and an extremely loud piezo buzzer. The row of pins along the edge are designe..
Hobbyshop247 2-6s Li-Po Battery TesterThe connector on this tester is designed to plug directly into a JSH-type balance connector, just position the balance tap so the black, or negative, wire is on the bottom, insert the pins from the tester into it, with the LED display facing you, and it will aut..
Hobbyshop247 Air Valve & Gear Door SequencerAll of the "options" offered by this circuit are controlled from the main circuit board. The red two-position Option Switches are used to select the option of closing the gear doors after the gear are down, and the direction of the air-valve..