Hexpert System, Zlog Mod 4 Altitude recording system.
Zlog Mod4: Price: $86.00

Dionysius Design servo control board. allows standard servo to be controlled with slower speed and better control of the servo. for control, select the channel that has a spring loaded stick. center stick will stop the servo from moving. left stick will move the servo left, and right stick will move the servo right it will remember its present setting and hold. at this price, it is one of the best bargain out there. this includes free ship: Price: $10.00

parkBEC in 5V: Price: $16.99

parkBEC 6V: Price: $17.99

Servosense Plus: Price: $15.00

sportBEC : Price: $27.99

vhvBEC: $37.99

DELight Starterkit: Price: $57.99

DElight Controller: $29.00

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