Quest Technologies is pleased to announce the addition of the QUESTemp° 44 and 46 to our portable heat stress instrumentation series. These instruments are used to evaluate indoor and outdoor environmental conditions for the potential to cause heat stress or heat-related injuries. The QUESTemp° 44 and 46 incorporate a Waterless Wet Bulb sensor, which offers traditional heat stress monitoring without the aggravation of wet bulb maintenance.Quest Technologies, a 3M company,, (800) 245-0779.