LiftGuard LG-V230 Lift emergency phone and Emergency Light The device provides monitoring and reporting of lift alarm events. It establishes twoway voice communication between a trapped passenger and the service company. The communication with the service company is done via embedded GSM module. It supports backup power supply via rechargeable battery, guarantying at least one hour full functionality without main power. The device maintains emergency LED light in the car. It can be installed in passenger or good passenger lifts.