F21-2S/2D type industrial remote controlDetailed product description：

The F21-2S/2D industrial remote control is compact and portable, making it ideal for vehicles or machinery with two actions.  

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)
Over 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: 130 x 45 x 22 millimeters
Weight: 80 grams (excluding battery)
Power supply: 2 AA batteries, alkaline/rechargeable