GAS ANALYZER GasAlert Extreme  Designed with durability and comfort in mind, this gas detector monitors for any single gas hazard within its wide range of available toxic gas models. Features & Benefits Equipped with internal vibrating alarm for high noise areas Secure and accurate history with datalogging option Multi-language support in English, French, German, Spanish, and Portuguese Quick Specs Size:1.1 x 2.0 x 3.75 in./ 2.8 x 5.0 x 9.5 cm Weight:2.9 oz./ 82 g Alarms: visual, vibrating, audible (95dB)- Low, High, TWA and STEL Tests: Sensor integrity, circuitry, battery and audible/visual alarms on activation, battery (continuous) Pump: Compatible with the Sampler motorized pump Typical battery life:1.5 year battery life (typical) with replaceable 3V battery