Biosystems LLC has introduced a new MultiPro multi-gas detector that provides real-time readings of up to four gases with one-button operation, essential for users in the field who need feedback right away. A backlit LCD display on the front of the unit simultaneously shows readings for all gases being monitored, and emits audible and visual alarms.

The unit includes O2 and LEL sensors -- and choice of either a dedicated CO or H2S sensor, or a Duo-Tox sensor that measures CO and H2S at the same time. By combining two toxic gas sensors in one housing, the Duo-Tox sensor monitors for carbon monoxide and hydrogen sulfide without cross interference, making it ideal for applications in which both hazards are present, Biosystems says.

The MultiPro detector provides visual and audible notification for warning, danger, STEL and TWA alarms. A red LED alarm is visible from the top and sides of the instrument, and a two-tone audible alarm registers at 92 decibels at one foot. A vibrating alarm is included for use in high noise situations.

The MultiPro's Event Logger stores max and average readings, as well as time and duration for up to 20 events. A standard black box recorder provides more than 40 hours of storage, automatically retaining the most recent calibration date and time, and can be upgraded to a full data logger. The unit is equipped with a wireless IrDA port for communication with PCs, and is compatible with Biosystems' BioTrak software.