The IAQ Sentinel is a cordless tool that measures temperature, humidity, carbon dioxide, and HVAC system operation in up to four zones simultaneously. In addition, the unit gathers outdoor baseline data for the same parameters. When the sensors are restored to the protective case, all data is downloaded through the included software, providing an intuitive graphical display of the relational data from the subject building, the manufacturer says. Sentinel software creates architectural-style room zone layouts and has the ability to import digital photos linked graphically to each area.

Lindhardt Breathe Easier, 2854 South Redwood Rd., Ste.17, West Valley City, UT 84119-2392; 801-973-9646 or 800-618-9646; 801-973-9696 (fax);

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