•Mains Voltage: 110-240AC +/- 10%, 50Hz •Battery Voltage: 2x12V / 1.3 Ah 97*42*52mm •System Voltage: 19-22V DC Nominal •System Voltage Ripple: 200mV MAX •Charger Size: Up To 1.3 AH In 24 Hours •Zone Voltage: 24V DC Nominal (22-24V) •Sounder Alarm Outputs : 4 zone: 2 x Available •Fault Output: 1xRELAY SELV (1AMAX) •Fire Output:1xRELAY SELV (1AMAX) Fire Bell----available •Number Of Zones: 4 zone •Maximum Zone Capacity: 5 devices Per Zone •Sounder Activation Delay:0-18 Minutes-in 30s Min Increments •Zone End Of Line Device:6.8k Resistor •Sounder End Of Line Device:6.8k Resistor •Zone Short Circuit Protection: 100mA •Charger Short Circuit Protection: Batteries Less Than 20V •Supply: 24V +/- 1V