The Extech AN100/AN200 thermo-anemometer is a versatile instrument designed for simultaneous measurement of air velocity and ambient temperature. Ideal for HVAC professionals, facility maintenance, and environmental testing, it provides accurate readings with a 3% velocity accuracy and a wide measurement range of 80 to 5906 ft/min (0.9 to 67.2 mph).

The AN200 model adds a built‑in non‑contact infrared thermometer with an 8:1 distance‑to‑spot ratio and laser pointer, enabling remote surface temperature measurements from -58 to 500°F. Both models feature a large backlit LCD for easy reading in low‑light conditions, and a low‑friction 2.83‑inch ball‑bearing vane on a 3.9 ft cable ensures reliable airflow capture.

Advanced functions include a 20‑point average for air flow calculations, storage of up to eight area dimensions, data hold, min/max recording, and auto power off. The internal temperature sensor covers 14 to 140°F, making the AN100/AN200 suitable for a wide range of applications:

• HVAC installation, repair, diagnostics, and optimization
• Fume hood testing, installation, and verification
• Ventilation system installation, servicing, and analysis
• Environmental wind and temperature testing/analysis
• Boiler rooms and plant/facilities maintenance
• Ionizer flow output monitoring
• Automobile aerodynamic testing

Features

• Air velocity range: 80 to 5906 ft/min (0.9 to 67.2 mph)
• Velocity accuracy: ±3%
• Ambient temperature range: 14 to 140°F
• IR temperature range (AN200): -58 to 500°F with 8:1 D:S and laser pointer
• Large backlit LCD display
• 20‑point average function for air flow
• Memory for 8 area dimensions
• Data hold, min/max, and auto power off
• Low‑friction 2.83 in ball‑bearing vane on 3.9 ft cable
• Complete with batteries and manual