The Napco SLE-LTEVI-FIRE is a Verizon Network Certified LTE Service Dual Path Commercial Fire Alarm Communicator. This unit is designed specifically to interface with Fire Alarm Control Panels (FACP) and to comply with UL 864. The SLE-LTEVI-FIRE is equipped with two dry relays as well as four supervised inputs for reporting a fire alarm, fire trouble, water flow alarm and supervisory alarm.