LCD screen displays the phone numbers and the instruction prompts.

Built-in GSM module accepts every carrier''s SIM cards.

Four individual voice and SMS messages for four independent N.C. loop input.

One voice and SMS messages for one extra 24-hour monitored N.O. loop input.

Specifications:

Power supply: AC110V/AC220V.

Back power (optional): a 12V/1.2AH battery.

Power consumption: 2A/(Instant highest), 350mA (working), 150mA

(standby).

4-band GSM module: 850/900/1800/1900MHZ.

Antenna: SMA RF.

External antenna (optional): 3 meters long.

Voice and SMS messages: 5 independent sets (4 N.C. loop, 1 24-h N.O.

loop).

Length of voice message: 20 seconds maximum.

Length of SMS message: 70 letters maximum.

Number of recipients: up to 10 phone numbers (landline or cellphone

each 25 digits maximum).

Outputs: one dry contact relay output, one system setting instruction LED output.

Power output: DC13.8V/1A, DC12V (battery charging/discharging loop).

Built-in power transformer: 24VA.

Dimensions: 213W x 300H x 70D mm.