ETS-277
Ordering Information
| P/N | Description | 
| ETS-277M | 
 Multi-Mode, 2Km, 9V-36VDC, SC, FC or ST, optional  | 
| ETS-277S | 
 Single-Mode, 20Km, 9V-36VDC, SC, FC or ST, optional  | 
        Ordering Information
| P/N | Description | 
| ETS-277M | 
 Multi-Mode, 2Km, 9V-36VDC, SC, FC or ST, optional  | 
| ETS-277S | 
 Single-Mode, 20Km, 9V-36VDC, SC, FC or ST, optional  |