F21-E2 series
F21-E2 ( 8 Pushbuttons single speed)     F21-E2-4 ( 4 Pushbuttons single speed)
The compact, ergonomically designed transmitters for easy carrying.
F21-E2, a single speed button works as double speed button through PC program.
e-Card supported
Easy swapping the system from one to another in case of transmitter damage.  
Remove the e-card and plug into new system for resuming to work immediately. 
  • Transmitter pushbutton: 1 EMS button / 1 Rotary Key Switch 8 single step button (UP/DOWN buttons are programmable as double speed through software)
  • Transmitter power supply: Two 1.5 volts (AA Size) alkaline/ rechargeable batteries
  • Over 4.3 billions unique ID code available (never repeated)
  • Operating temperature range -40°C to +85°C
  • CRC & Hamming Technology: enhanced encoding/decoding.
  • Internal antenna for both transmitter & receiver
  • PLL Circuit: multi-channel selection, interference free.
  • Ergonomic transmitter: compact & handy.
  • Programmable: Computer software programmable. A single step pushbutton works as double step pushbutton.

Function Setting Software

  • To meet variety application requirements, F21-E2 software provides multi-function setting such as pushbutton in Normal(Momentary), Toggle, Magnetic, ON/OFF, and Interlock/Non-interlock modes.

Special characteristic: e-Card design

  • USB interface
  • Plug & Play, just like SIM card
  • e-Card duplicate via transmitter


  • Dimension: 132 x 55 x 40 mm
  • Weight: 175 g (w/o batteries)
  • Power: 2 AA batteries, Alkaline / rechargable acceptable


  • Dimension: 190 x 85 x 62 mm
  • Weight: 950 g (w/ wire cable)
  • Power supply: 24/48, 48/110, 110/220, 220/380 VAC  /  12~24 VDC