F21-4S/4D type industrial remote controlDetailed product description：

The F21-4S/4D industrial remote control is suitable for electric hoists, monorails, and all applications that require 2-3 movements.  

Low cost electronic chain hoist/monorail train
Low power transmitter. Two AA batteries can be used continuously for up to four months
Specially designed ultra strong earthquake resistant relay for mobile devices (DC model only)
More than 4.3 billion unique ID codes are available.  
Temperature range -35 ° C~+80 ° C
Software based on Microsoft Windows, easy to customize configuration
Structure: Fiberglass

Transmitter
Size: 156 x 61 x 51 millimeters
Weight: 210 grams (excluding battery)
Power supply: 2 AA batteries, alkaline/rechargeable

Receiver
Size: 185 x 85 x 85 millimeters
Weight: 550 grams (excluding wires and cables)
Power supply: 24/48/110/220/380 VAC/12~24 VDC