AFL TELECOMMUNICATIONS/NOYES OFI400HP FIBER IDENTIFIER NEW The AFL TELECOMMUNICATIONS OFI-400HP Optical Fiber Identifier is used to identify fibers without disrupting service. High power fiber identifier will detect power signal levels +33 to -40 dBm (@1550nm, 3mm fiber). A build-in power meter is calibrated for 3mm jacketed SMF-28. A 2-position plunger allows it to be used with 2mm jacketed fiber as well. Optical fiber identifier will detect traffic, CW and 270, 330, 1000 and 2000Hz tones. If power levels rise above 23dBm a warning message illuminates the LDC display. Includes a user guide, batteries & carry case.