71501 Ziton ZP3 4 Loop Analogue Panel, 230V, EN54Features Included: Ease of Operation Automatic Contamination Adjustment Service and Near Service List for Devices Sophisticated Alarm Verification Advanced Loop Isolation Automatic Self Test Day Night Control Sounder Self Test Radio Loop Interface Password Protection Event Log (up to 1000 alarms) Planner for Windows Loop Load Calculator Remote Diagnosis (via modem)