Features: IntelliFlash verifies operation and compliance to both the user and supervisors from up to 20 ft. / 6.1 m One-button operational simplicity Simultaneously monitor for up to four gases including O2, H2S, CO and combustibles Continuous LCD shows real-time gas concentrations Compact and lightweight design makes it comfortable to wear Water-resistant Simple automatic calibration procedure; compatible with BW MicroDock II automatic test and calibration station Full function self-test of sensor, battery status, circuit integrity and audible/visual alarms on start up Bright wide-angled visual alarm bars Built-in concussion-proof boot Integrated sampling pump with reliable diaphragm technology Best in class block detection with semi-conductor pressure sensor Multi-language support in English, French, German, Spanish and Portuguese Conveniently manage your detector with Fleet Manager II Equipped with standard datalogging and event logging Specifications: Size: 5.1 x 2.8 x 2.0 in. / 13.1 x 7.0 x 5.2 cm Weight: 11.5 oz. / 328 g Temperature: -4 to 122ºF / -20 to 50ºC Humidity: 10 - 100% RH (non-condensing) Alarms: Visual Vibrating Audible (95dB) Low, High, STEL, TWA, OL (over limit), Low Battery, Pump Tests: Audible/visual alarms on activation Sensors Battery, Pump and Circuitry (continuous) Typical battery life: 13 hours @ 32ºF / 0ºC; 8 hours @ -4ºF / -20ºC Recharges in 6 hours Pump draw: Sample from up to 75 ft. / 23 m Warranty: Full two year warranty including all sensors User options: Confidence beep Safety (sensor) lock Latching alarms Safe display mode Calibration IR lock Location selection Force block test Force bump test when overdue Force calibration when overdue Sensor configuration Detector identification Low alarm acknowledge Language choices (five) Set custom start-up message Confidence interval Datalog interval Ratings: Ingress Protection EMI/RFI: Complies with EMC Directive 2004/108/EC IP66/67 Sensor Specifications: Sensor Type Measuring Range Resolution H2S 0 - 200 ppm 1 ppm CO 0 - 1000 ppm 1 ppm LEL 0 - 100% LEL; 0 - 0.5% v/v 1% 0.1% O2 0 - 30% 0.1%