The NEWS reports on new products found by our editors at the recent AHR Expo in Chicago. Products are listed in alphabetical order within each category.

Spectroline® AR-GLO 4/E® universal dye can be used in any air conditioning or refrigeration system, with any type of refrigerant or lubricant that is in the system. When the leak detection dye is added to the system, it circulates with the refrigerant and oil.

This is the first of a three-part series covering the importance of liquid subcooling in a refrigeration or air conditioning system.

For securing PEX, CPVC, or copper piping in domestic hot- and cold-water systems and in hydronic heating applications when a job is in process or interrupted, the Speedfit test caps provide a leak-proof seal in conjunction with the company’s push-fit fittings.

Heavy tools and instruments can be tethered with the TL1-3025 fixed loop tether and TL1-4025 fixed loop tether. Both of the new anchored tethers are designed for attachment to a fixed structure rather than to a person. The fixed loop tethers are rated at 15 and 25 pounds respectively.

Designed for the iPad, iPod Touch, and iPhone, the WiPry-Combo dynamic power meter and spectrum analyzer accessory offers a modern touch interface; it turns an iOS device into an ultraportable spectrum analyzer and dynamic power meter.

Digital pressure gauges have been added to the line of process pressure instrumentation. With a 2.5-inch dial face, EDG gauges display both positive and negative pressures on an easy-to-read LCD screen. Accuracy of ±1 percent of full scale provides the reliability needed for the user’s process.

From a distance of several meters, current measurement values can be read easily due to the large display of the HUMLOG20 data logger. Typical fields of application include the monitoring and recording of humidity, temperature, CO2, and air pressure in museums, conference rooms, or classrooms.