Elevator Emergency Phone with Five Wire Connection is available with Built- in Battery Backup. Deepak Instruments offers Elevator Emergency Phone with Five Wire Connection. Deepak Instruments supplies wide ranges of power supplies, uninterruptible [ups], telephones, elevator emergency, transducers, phase angle/power factor, transformers, control, transformers, ferrite, transformers, high voltage, transformers, isolation, transformers, line driver, transformers etc. Elevator Emergency Phone with Five Wire Connection operates on single button.
