6 single speed pushbuttons+1 normal stop+1 start/alarm

Dimension:
164 x 75 x 46 mm ( F21-E1B model)

 Weight :
 Approx. 120~380g (without batteries)

Receiver
Dimension: 185x85x85mm
Weight: 550g (w/o wire cable)
Receiver Power Supply: 24/48/110/220/380 VAC &
   12/24V DC