Profile: Pacer Industries, Inc. specializes in test & measurement equipment. Our product includes multi-function instruments, digital anemometers, sound level meters, hygrometers, transmitters, probe heads and gas leak detectors. Our Pacers model DA40V is a versatile instrument for measuring air velocity and calculated air volume flow. We supply digital hygro-thermometer DHM200, which checks relative humidity & temperature for the air conditioning, heating and ventilation fields.