Pisector Home Security Alarm System Remote Controller Metal Remote Control with 4 buttons for long durability Works with PiSector Alarm Systems Model GSM06 S02 series, does not support NEW System Model# GS08 and PS03 Transmission Distance: 100m / 300ft (Open field) Dimension: 58mm x 30mm x 12mm Type of Battery: 12V 27A Alkaline Battery