• Measures temperature and %RH
• Calculates wet bulb and dew point
• Slim 38" telescoping probe
• Fast response time
• Depth and direction indicators
• Hands-free testing with stabilizing cone and magnetic hanger
• Can send wireless measurements from up to 100' away

The In-Duct Hot-Wire Anemometer & Psychrometer accessory head, AAT3 allows HVACR professionals to measure air velocity, temperature, and %RH all in one tool. The engineered 38" telescoping probe with laser etching and quick-response sensor provides quick and easy airflow measurements from the correct location--near the evaporator. When using with the Fieldpiece HVAC Guide System Analyzers, the AAT3 can automatically calculate target super heat and target evaporator exit temperature. Connected to a wireless transmitter, the AAT3 can send measures wireless to any Fieldpiece Wireless Meter (HG3, LT17AW, EH4W) up to 100' away.

Designed specifically for HVACR professionals, the AAT3 In-Duct Psychrometer is a great tool to properly install and service fixed restrictor systems. More than 70% of A/C units are running inefficiently, but with the AAT3 it's easier to ensure units are running at their maximum efficiency. HVACR pros can trust the results for tests like temperature splits, target evaporator exit temperature, target superheat, and CheckMe! because measurements are taken near the evaporator without the interference of outside air temp or leaks in the duct work.

Functions:

• Measures temperatures, %RH, and air velocity
• Calculates wet bulb and dew point
• Automatically calculates Target Superheat, Target Evap Exit Temperature, and Total CFM (when using the Fieldpiece HVAC Guide System Analyzers)

How to Use

1. Remove sensor cap from the telescoping probe tip.
2. Connect directly onto any Fieldpiece HS multimeter, data logget or the HG3 HVAC guide. For most Fieldpiece SC and LT meters, use Fieldpiece ADLS2 test leads plugged into the COM and VΩ jacks.
3. Select mVDC range on multimeter.
4. Set switch position of AAT3 to °F and°C, Ft/min and M/s, or %RH.
   1. For temperature set temp type switch to DRY BULB, WET BULB or DEW POINT.
   2. For velocity measurements wait for 10 seconds as the AAT3 warms up.
5. Read the measurement directly on the multimeter display.