Profile: Pipo Communications specializes in offering dual-tone multi frequency encoders. Our encoders are microprocessor-generated tones provide users in critical fields such as broadcast, security and mobile radio. Our ST-888 DTMF display decoder measures only 8.0 inch W x 4.3 inch D x 1.7 inch H8 digit display. Its internal validation check accepts only valid code sequences. It accepts incoming digits from 1 to 20 dps to accommodate both manual and automatic encoders. It provides audible internal alarm and external alarm output upon receipt of ENI (Emergency Number Identification) code. Our PK-1K w/relay DTMF keyboard & module encoder features 12 key format, sealed gold dome contacts, wide operating range 8.5 to 16 VDC, mounting screws and keyboard available in black, dark brown and light brown.