Simultaneously measuring and recording CO2, humidity, and temperature, the CP11 handheld multimeter also calculates the dew point and wet bulb temperature. It is equipped with the field-tested Hygromer® IN-1 humidity sensor. HW4-Light software comes with the device.

Various innovative HVACR manufacturers are touting new tools geared toward making equipment installation and maintenance easier for contractors, thus vastly improving the quality and quantity of their work.

Designed to take accurate measurements of humidity and temperature from the most difficult to reach places is the DP-110 in-duct digital psychrometer. The 6-inch flex neck allows technicians to position the sensor in ducts or plenums. The psychrometer can measure temperature, percent rh, and wet bulb/dry bulb.

A new probe capable of measuring relative humidity, dewpoint, absolute humidity, specific humidity, wet bulb temperature, and dry bulb temperature is available for the AdvancedSense HVAC/OH/FM/IAQ meters. The small-diameter probe may be directly connected to the AdvancedSense meters via the lower left 7 pin socket.

Now available with Bluetooth wireless communication, the portable BTU4400-NOx flue gas analyzer is designed for emissions monitoring, maintenance, and tuning of combustion processes. Its rugged design and “true NOx” capability makes the 4400 an ideal industrial analyzer for boiler, engine, furnace, and other combustion applications.

With four ports and a built-in vacuum gauge on the SMAN4 digital manifold, users can evacuate a system, pull a vacuum, add refrigerant, and dial in the charge without unhooking their manifold. There are three standard ¼-inch ports and one beefy 3/8-inch port with the bore in the manifold being 3/8 inch throughout.

The 320 Series true RMS clamp meters is a complete line of tools engineered to produce noise-free, reliable measurements in the toughest environments. Designed to be long-lasting and easy to use, the 323, 324, and 325 clamp meters are ideal for rugged, all-purpose use.

Combination hot-wire anemometer and psychrometer accessory head AAT3 gets into ducts easily. It can be used for measurement of air velocity, temperatures, and percent rh. It also calculates wet bulb and dew point. When connected to the HG3 HVAC Guide, it provides data for automatic calculations of target superheat and more.

With the 38-inch telescoping probe, a line of in-duct HVACR instruments — two psychrometers (SRH3 and ARH5) and a hot-wire anemometer (STA2) — makes it easier for techs to take temperature, percent rh, or air velocity readings in the duct. The standalone STA2 uses a hot wire for measuring air velocity.

Portable handheld device Kestrel 4400 Heat Stress Tracker fits in a pocket or small belt carrying case and provides accurate waterless wet bulb globe temperature (WBGT) measurements within minutes of exposure to the air. The most common composite measurement used to determine appropriate exposure to heat stress conditions is WBGT.