SUMMIT AC220 UHF F20-2S cheap price 2 single speed bush buttons up and down micro mini electric hoist industrial wireless remote control
Main features: 
1. 2 pushbuttons, magnetic rotary switch
2. 2 controls 
3. With battery voltage warning device, the power supply is cut off during low power
4. Program the button function by computer interface
5. Up/down, can be programmed to interlock or non-interlock
6. Safety key switch is to prevent from the unauthorized user.

F20-2S The complete set radio remote controls includes 1 transmitter and 1 receiver:

TELEcontrols 's wireless remote control system can be mainly used in 4 areas:
1. Vehicles equipment,
2. Industrial control,
3. Lifting machinery 
4. Door control system.
Such as crane, engineering machinery, lifting platform, travelling crane, hydraulic equipment, automobile tail boad,  breakdown vehicle, conveyor belt, industrial door and robot, etc.