GasAlertMax XT II Specifications Dimensions 5.1 x 2.8 x 2.0 英寸 / 13.1 x 7.0 x 5.2 cm Weight 11.5 * / 328 g Temperature -4 to 122oF / -20 to 50oC and humidity of 10% to 100% relative humidity (non-condensing) Alarm - Vision , vibration, sound (95dB) - Low limit, high limit, STEL, TWA, OL (overload), lack of electricity, pump tests visual alarms activated when the detector is activated when the visual alarms if the sensor failure, low battery, pump and circuit failure (uninterruptible) issued an alert service life of the battery at 32oF / 0oC, 13 hours at -4oF / -20oC, 8 hours 6 hours to full pump priming up from 75 feet / 23 meters Forced calibration sensor configuration detector identifies low alarm to confirm the language options (five kinds of forced impact test expires take samples at user options Confidence beep Insurance (sensor) locks security alarm display mode Calibration IR lock position to force block test expired choice ) set up a custom boot message prompts interval data recording interval grading intrusion protection EMI / RFI: Complies with EMC specification 2004/108 / EC IP66 / 67 certified and licensed Class I, Div 1, Gr A, B, C, D IECEx.. : Ga Ex ia IIC T4 ATEX: II 1 G Ga Ex ia IIC T4 Br Ex ia IIC T4 Guarantee 2-year warranty (including all sensors)