Ventis MX4 Multi-Gas Detectors • 95dB audible, bright LED and vibrating alarms DS2 Docking Station compatible Backlit LCDTrue portability with multi-gas detection in single-gas size. Configured for non-pump applications or with an integral pump for sample draw applications. Available with a tough, safety orange overmold for visibility of the instrument in dark environments. Detectors with diffusion include calibration cup. Detectors with pump include calibration tubing and sample tubing. All detectors include desktop charger and rechargeable batteries.