The MP Surveyor II and Pro models both provide instantaneous monitoring for all IAQ parameters, the company says. Features of both include smart four-function NDIR probe (CO, CO2, temperature, rh), dual sockets, and continuous datalogging. The Pro model also has a built-in micromanometer, calculated VFR, and K-type thermocouple. Optional smart probes measure pressure, velocity, volume flow, rpm, particulates, airspeed, and other parameters.

Zellweger Analytics, Inc., P.O. Box 2100, Flowery Branch, GA 30542; 800-535-0606; 770-967-1854 (fax); (Web site).