Telephone Test Butt-Set, Water and Drop ResistantMT-8100 Butt Set comes with all the functions you need to be more productive in the field. It was approved by IEC/EN 90529 IP54 for waterproof and dustproof test, and features the latest improvements to drop protection realiablity. MT-8100 is a smart operation unit used by installers, repair technicians and other authorized personnel to test copper wire voice subscriber lines. It is easy to use, features line voltage test, continuity test, two-way hands-free amplified speakerphone, speed dialing, low battery indicator and a rugged locking clip. Complied with IP54 Dustproof and Waterproof testsDrop ProtectionCE approvedHigh impedance monitorOuter-lead voltage LED indicatorsOn/off checking feature checks out if telecom line is connected wellContinuous polarity LED indicatorsSpeakerphone for convenient hands-free two-way conversationTone and pulse operationStore up to twelve 16-digit numbers in repeat dialer (speed dailing), plus extra number store in M1 buttonLast number redial featurePBX pause buttonMute switchElectronic switch controls the volume of the speakerphone/monitorAutomatic shut-off feature turns off speaker after five minutes of inactivityBatter low-voltage LED indicatorsAudible electronic ringerRetractable steel locking belt clipAngled bed of nails allows it stab into the cable, and the auxiliary RJ-11 Modular plug can be inserted directly into the telecom jack
