Kit gsm/sms rfid touch alarm system

Power supply: input: 110-240 vac 50/60 hz output: 12 vdc 500 ma gsm working frequency: 850/900/1800/1900 mhz standby current: 110 ma alarm current: 340 ma internal battery backup: 2 x 3.7 v 800 mah lithium battery (bl-5b) internal siren volume: 95 db radio frequency: 433 mhz (± 75 khz) housing material: abs plastic operating conditions: operating temperature: -10 °c to +55 °c relative humidity: = 80% (non-condensing) dimensões: panel: 185 × 130 × 27 mm stand: 150 × 70 × 10 mm