10 in Adjustable Stroke DC 12V 24V Thrust 1300 Ib Linear Actuator B4 (Model: 0041532-4) Choose Speed and Corresponding Max Thrust::28±6mm/s (1200N / 120kg / 260 lbs) you need to turn off

you need to turn off the first bit dip switch

Press and hold the button B on the transmitter

Cable Length: 500cm

and you also can use a powerful transmitter

2) If you need external limit switch for linear actuator

10 in Adjustable Stroke DC 12V 24V Thrust 1300 Ib Linear Actuator B4 (Model: 0041532-4) Choose Speed and Corresponding Max Thrust::28±6mm/s (1200N / 120kg / 260 lbs) you need to turn offNote: 1) This product must be used in conjunction with a remote switch equipped with normally closed type limit control terminals, such as our product (Model 0020512), please click here to buy if needed. 2) This product does not contain a mounting brackets. It compatible Bracket B and Bracket D, please click here to choose and buy. 3) If you need a DC power supply, please click here to choose and buy. Package Include: 1 x Linear actuator B4 2 x