HD300-EU-EN V2.2 07/13
2
Introduction
Congratulations on your purchase of the Extech HD300 CFM Thermo-Anemometer. This
handheld meter measures and displays air velocity, air flow (volume), temperature of air, and
surface temperature (using the built-in non-contact IR thermometer). This meter is shipped fully
tested and calibrated and, with proper use, will provide years of reliable service.
Features
CFM/CMM Thermo-Anemometer with built-in non-contact IR Thermometer measures remote
surfaces to 500°C (932°F) with a 30:1 distance to spot ratio and Laser pointer.
Simultaneous display of Air Flow or Air Velocity plus ambient temperature.
Eight (8) memory locations permit the user to store multiple air duct AREA values for fast and
easy recall.
Twenty (20) reading average for Air Flow or Air Velocity.
Large backlit LCD display.
3% velocity accuracy via low friction 72mm (2.83”) ball-bearing vane wheel on a 120cm (3.9’)
cable.
Data Hold and Max/Min/Avg.
Auto Power OFF (can be disengaged).
Safety
Use extreme caution when the laser pointer beam is on
Do not point the beam toward anyone's eye or allow the beam to strike
the eye from a reflective surface
Do not use the laser near explosive gases or in other potentially
explosive areas
