General Specifications: Processor High-reliability 8-Bit Microcontroller Display 16x2 high-contrast, backlit, LCD dot-matrix display Calendar clock Real-time clock, date and year display with leap-year correction Repeat time Programmable repetition from 4 to 90 minutes or Ramdom mode Alarm Duration Programmable Alarm Duration from 1 to 3 minutes. System ON/OFF Programmable time during which system is in active mode. History log 5000 missed-events log of time, date and month for "Basic Reports" and 5+ yrs of storage for "Day Summary". Memory Non-volatile RAM. Data can be retained for 10 years Memory overflow warning Warning through LED after 4500 events have been recorded. Strobe alert High-Intensity LED flashes during alarm period for visual warning Tone alert Piezoelectric transducer Last Setup Time Recording Last setup time recorded to provide added security against tamering of settings by unauthorized personnel. Auto Synchronisation The start of repetition time is synchronised with the first quarter-of-an-hour. Batteries 6V SMF Battery. Dimensions 280mm x 180mm x 55mm. Weight 2kg with battery. Warranty 1 year on parts and labor.