Compact, personal single gas detectors deliver reliable monitoring of harmful concentrations of gas in industrial settings. – Compact, personal monitoring of harmful concentrations of gas in industrial settings – Audible multitone, visual 180o, and built-in vibration alarm – TWA and STEL alarms are adjustable – Monitors may be programmed to remind user to run bump tests at set intervals -Fresh air and span calibration, adjustable operating time, concentration and event logger, password protection Backlit LCD shows information in large numerals and symbols to avoid language miscommunication. Screen displays concentration with notice and warning functions continuously. Peak concentration, average concentration (TWA value), and short term exposure limit (STEL) may be displayed with the touch of a button. High-performance, shock-proof, miniature XXS sensors react rapidly due to fast electrochemical reaction times and short diffusion path. Perform bump tests in as little as 10 seconds. Gas access from both top and front of monitors (in case one sensor is accidentally covered) provides increased reliability. Inlets are protected by dust and water filters. When harmful levels of gas are detected, an audible multi-tone alarm sounds along with a visual 180o alarm and a built-in vibration alarm. TWA and STEL alarms are adjustable. Monitors may be programmed to remind user to run bump tests at set intervals. Feature fresh air and span calibration, adjustable operating time, concentration and event logger that shows date and time, and password protection. Detectors are housed in impact- and chemical-resistant, RFI-shielding, rubber-coated polyamide for rugged use and are specially optimized for protection from electromagnetic effects. Stainless steel adjustable crocodile clip keeps monitor securely fastened to clothing. Sensors and batteries (included) are replaced easily. Detectors can be equipped with an optional infrared interface and PC-connecting cradle.