• Four- detector for surveying levels of H2S, oxygen (O2), carbon monoxide (CO), and combustibles in natural and industrial environments, and in other personal safety, training, research, and ambient air monitoring applications.
• Electro cell sensor measures H2S and carbon monoxide levels in ppm, capillary-pore fuel cell measures oxygen in percent by volume, and catalytic bead combustible sensor measures explosive es in percent LEL.
• Audio, visual, and vibration alarms alert simultaneously when ambient H2S, oxygen, carbon monoxide, and combustible es reach preset low, high, TWA, or STEL levels.
• LCD screen shows up to four ambient concentrations, battery level, alarm condition, and the status of calibration, bump, and sensor self-tests.
• Integrated diaphragm pump allows for localized sampling of the atmosphere for more precise readings than those generated through diffusion.

The BW Technologies XT-XWHM-Y-NA AlertMax XT II 4- detector with pump is a handheld, four- detector that uses an electro cell sensor to monitor ambient H2S and carbon monoxide (CO), a capillary pore fuel cell to measure oxygen levels, and a catalytic bead sensor to monitor ambient combustible es continuously. It has audio, visual, and vibration alarms, which alert simultaneously when es reach any of four preset levels. The integrated diaphragm pump allows for localized sampling of the atmosphere for more precise readings than those generated through diffusion. The detector has an alphanumeric LCD screen that shows real-time concentration of four monitored es, the alarm type, the calibration requirements, the self-test pass or fail, and the battery life remaining. The LCD also displays a constant flashing heartbeat icon to indicate normal functioning. The detector is operated and adjusted with a single push button. It is used to indicate potentially harmful levels of es naturally occurring in the environment; in a variety of occupational settings such as petroleum refineries, tanneries, sewage facilities, and paper mills; and in other personal safety, educational, and ambient monitoring applications. This detector is set to alert to when levels reach any of four limits: a low-alarm level, indicating moderate danger; a high-alarm level, indicating significant danger; a short-term exposure limit (STEL), the maximum concentration to which workers can be exposed continuously for a short period of time without serious risk; and a time-weighted average (TWA) limit, the maximum average exposure that personnel can experience over an eight-hour work shift without serious risk. The 95 dB audible alarm sounds at different speeds to indicate the alarm type, and the three bright, wide-angled LED alarm bars and the built-in vibration alarm help alert the user to potentially dangerous levels of es in high-noise conditions. The detector logs and retains data of the 10 most recent exposure events, which it can transmit via an infrared Datalink USB adapter to a personal computer (both sold separately). This product is powered by a replaceable AA alkaline battery that provides up to 14 hours of operational life. To ensure performance, the detector tests its sensor integrity, circuitry, and audible and visual alarms upon activation. It tests its battery upon activation and continuously during operation. The detector also features an automatic shutdown mode for additional safety, which activates when the detector fails its self-test. This detector comes with a back-ed alligator clip to allow the unit to be worn on a belt, waistband, or lapel, and built in concussion-proof housing to help protect it against damage. It is water resistant, and is compatible with the BW Technologies MicroDock II automatic test system (sold separately). It has a European Conformity (CE) and ATEX certification in accordance with Directive 2004/108/EC for electromagnetic compatibility of electric and electronic equipment, and it is classified by Underwriters Laboratory (UL) to U.S. and Canadian standards as an Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, Division I, Group A, B, C , and D. It has an ingress protection (IP) rating of 66/67. Specifications -------------- TypesH2S, carbon monoxide (CO), oxygen (O2), Combustible es (%LEL)Measuring Range H2S: 0 to 200 ppm CO: 0 to 1,000 ppm O2: 0 to 30% Combustible: 0 to 100% LEL, 0 to 5% v/v Resolution H2: 1.0 ppm CO: 1.0 ppm O2: 0.1% Combustible: 1% LEL, 0.1% v/v Temperature Range-4 to +122 degree F/-20 to +50 degree C Humidity Range10% to 100% RH (non-condensing) Audible Alarm Sound Level95 dBDimensions5.1 x 3.2 x 1.9 inches/13.0 x 8.1 x 4.7 cm (H x W x D)*Weight11.92 oz./338 gBatteryAA alkaline with 14 hour life(at +68 to 122 degree F/+20 to 50 degree C) *H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back. A detector is a safety device that detects and monitors various toxic, combustible, and flammable ses in an area, and which can also register a decrease in ambient oxygen. detectors can be portable or stationary, and are typically classified by their detection methods, which include catalytic, electro-, point infrared, open-path infrared, semiconductor, thermal path conductor, and paper tape detection. detectors are first calibrated to known ses that serve as a reference points. Their sensors can then be used to measure ambient concentrations in comparison to the calibration ses. When concentrations exceed a pre-set limit, an alarm or signal is triggered, alerting the user to potential danger. Pre-set limits often include a low-alarm level, indicating a concentration that poses a moderate danger; a high-alarm level, indicating a concentration that poses a large danger; a short-term exposure limit (STEL), the maximum concentration to which workers can be exposed continuously for a short period of time without serious risk of harm, and time-weighted average (TWA) limit, the maximum average exposure personnel can experience over the course of an eight-hour work shift without serious risk of harm. Most detectors also feature LCD screens that provide a variety of information including ses detected and their concentrations, pre-set exposure limits, and battery level. detectors have a variety of industrial and governmental applications, such as in fire and rescue, mining, construction, petroleum refineries, tanneries, sewage facilities, and paper mills. Portable detectors are typically used to monitor the air around personnel, are worn on clothing or on belts or harnesses, and are powered with rechargeable or disposable batteries. They generally require periodic calibration, testing, and battery recharging or replacement, although some fixed-life detectors are designed to perform for a number of years without calibration or battery replacement before being dided. Stationary detectors are typically powered electrically and ed near the process area of a or control room. They also require periodic service, testing, and calibration. BW Technologies by Honeywell manufactures and distributes portable and fixed monitoring equipment for use in a wide range of industries. The company, founded in 1987, is based in Canada in Calgary, Alberta.