1) Phone line 24 VOLTS - 50 VOLTS. 2) FLAMEPROOF CONSTRUCTION as per IS 2148-2004 ( IEC 60079-1/2001 ). 3) FOR GROUP IIA AND IIB. 4) General design , rating, performance & T-class IS:13346-2004 ( IEC 60079-0/2000 ) 5) WEATHERPROOF CONSTRUCTION IP55 as per IS 12063-1987/IEC 60529/1989 more...
1) Single PCB design for plug n play operation. 2) In built amplifier with internal speaker. 3) Electronic ringer unit. 4) Waterproof non-tactile keypad. 5) 16 gauge rugged steel powder coated construction. 7) Noise canceling mic. 8) CONNECT, RELEASE & PTT SWITCHES for communication. 9) Encapsulated circuit b more...