MOTOROLA MOTOROLA V171 GSM function digital mobile telephone user manual 2004 - 11 - 9 - 1.0F | wwwfiresentrycom FS24X Four Frequency Triple infrared Line TM FS18X Three Frequency infrared Line TM infrared Multi- 光谱 photoelectricity sensor digital broadband Multi- 光谱 sensor 光热辐射火焰 detector FSX T |