Extech 407123 Heavy Duty Hot Wire Thermo-Anemometer with NIST Calibration

The Extech 407123-NIST Heavy Duty Hot Wire Thermo-Anemometer is designed to deliver high-accuracy airflow and temperature measurements in demanding industrial, HVAC, and ventilation environments. Its slim telescoping probe makes it ideal for accessing tight ducts and ventilation openings, providing consistent and reliable performance in even the most confined spaces.

Equipped with a large 1.4" dual LCD, this meter displays air velocity and temperature simultaneously for efficient real-time monitoring. It supports multiple units of air velocity measurement, including m/s, km/h, ft/min, mph, and knots, offering flexibility across various applications.

With a rugged build and NIST Calibration Certificate, the Extech 407123 ensures performance you can trust in critical applications where precision matters.

What's Included:

• 1 - NIST Certificate of Calibration
• 1 - Telescoping Probe With 5.5Ft Cable
• 6 - AA Batteries

Features

Low Air Velocity Measurement
Capable of detecting airflow as low as 40 ft/min, ideal for sensitive ventilation testing.

Multi-Unit Velocity Display
Supports readings in m/s, km/h, ft/min, mph, and knots for versatile applications.

Accurate Temperature Sensing
Uses a precision thermistor for reliable temperature readings in both °C and °F.

Simultaneous Dual Display
Large 1.4" LCD presents air velocity and temperature at the same time for quick assessments.

Min/Max and Data Hold Functions
Tracks airflow changes and freezes current readings for easy documentation.

NIST Certified Accuracy
Comes with a NIST Certificate of Calibration for traceable and trusted performance.

What's Included

Included with Your Purchase:

• 1 - NIST Certificate of Calibration
• 1 - Telescoping Probe With 5.5Ft Cable
• 6 - AA Batteries

Specifications

• Model: 407123-NIST
• UPC: 793950411230
• Display: 1.4" Dual LCD
• Air Velocity Range: From 40 ft/min
• Velocity Units: m/s, km/h, ft/min, mph, knots
• Temperature Measurement: °C and °F
• Probe Length: Telescoping, up to 2 ft
• Cable Length: 5.5 ft
• Interface: RS-232 for data acquisition (optional software and cable required)
• Power Supply: 6 x AA batteries
• Condition: NEW

FAQ

Q: What is the minimum air velocity this anemometer can measure?
A: It can measure air velocity as low as 40 ft/min.

Q: Can I view both temperature and air velocity at the same time?
A: Yes, the dual LCD displays both parameters simultaneously.

Q: Is the Extech 407123 suitable for ductwork testing?
A: Absolutely. Its telescoping probe is designed for hard-to-reach duct and vent applications.

Q: Can this unit be connected to a computer?
A: Yes, it has an RS-232 interface and supports optional data logging software for PC connectivity.

Q: Does it come calibrated?
A: Yes, it includes a NIST Certificate of Calibration.

Resources

Documents:

• Extech 407123 Datasheet
• Extech 407123 User Manual