Instructions:  

New design circuit with Regular voltage IC to get stable work voltage to retract more smoothly.
Three independent control circuits to drive each DSR. Checking each retracts and shut it down if despaired situation happened.
Redesign driving system, over 70% components were made by Metal. More strength and reliable.
Auto cut off jammed retract power within 10 seconds to prevent draining input battery.
LED lighter will be on while struts down. And off while up.
Wheel rotates 90 Degrees while up. It is helpful for some special model.
You no longer need AIR Canister pumps for air retracts or servo push-pull retract mechanism for your landing gear.
DSR system are compatible with Futaba, JR, Spektrum, Hitec.
Try and Enjoy the revolutionary patent product innovation now.
The system is suitable for 0~4 lbs model.

Specification:

●Input voltage: DC6~7.4V(5cells Ni-MH, 2 cells Li-Po)
●Lower voltage indicator: Green LED switch to Flash RED while input lower than 5.5V.
●Working current:0.09A(approx.)
●Strut shaft diameter: Φ2.5
●Dimension: 33.5(L)x22(W)x18(H)mm
●Total Weight:23g(approx.)
●Wheel 90 degrees Rotating:Yes
●LED Lighter:No

Accessories:

DSR-L30  Left retract X1
Install Manual x1