VENTIS™ Newest in personal-sized multi-gas monitoring. This instrument can be configured for diffusion operation or with an internal sampling pump to monitor one to four gases including oxygen, combustible gas and a choice of two toxic gases including CO, NO2. It features an LCD readout of all gases, peak/ hold function, STEL, TWA and data logging. Operated with a standard lithium-ion or alkaline battery, the Ventis™ is also available in a high-visibility, safety orange version. Its small size and durable, lightweight construction make it ideally suited for a wide variety of hazardous and confined space applications. The Ventis™ comes standard with a calibration cup with tubing and suspender clip (diffusion version only).