Trisha Electronic & Communication Pvt Ltd manufactures STD PCO Phone Monitor with Double Password Protection. Trisha Electronic & Communication Pvt Ltd also manufactures coin operated phone, wall mounted pay phone and local call meter. This Phone Monitor has programmable multilingual printouts in English / Hindi/any other Indian language The STD PCO Phone Monitor with Double Password Protection, Model ALFA-100, has display of called station name with backlight. This STD PCO Phone Monitor has CHMOS design for low power consumption. This STD PCO Phone Monitor has in built telephone directory and two wire transmission for remote booth display. This STD PCO Phone Monitor has 12 volts battery back unto 40 hours.
