... -inch large screen luminous English LCD panel, completely off-line, free from virus affected, stable and reliable, so ... area, the machine adopts the most advanced power filter, voltage regulator modules, effectively suppress power fluctuations, spikes interference, clutter. ... 0.65WAlarm output: 12VAC/1A contact-type output relayTelephone line detection time: 2sPhone Card Test Time: 2sChassis Material: ...