The Extech EN510 is a comprehensive six‑in‑one environmental meter designed for professionals who need to measure multiple parameters with a single, portable instrument. It combines air velocity, airflow, air temperature, humidity, wet bulb, dew point, windchill, heat index, light levels, and Type K thermocouple temperature—all in one rugged package.

Air velocity and flow measurements are performed using a replaceable mini vane wheel with a low‑friction ball bearing, ensuring accuracy across a wide range of 80 to 3937 ft/min. Airflow calculations cover up to 1.27 million CFM, with selectable units and resolution as fine as 0.001 CFM. A built‑in thermistor measures air temperature from 32 to 122°F, while an additional Type K input accepts standard probes for surface temperature measurements up to 2372°F.

For environmental monitoring, the EN510 employs a capacitive humidity sensor with ±0.4% accuracy, calculating wet bulb, dew point, windchill, and heat index automatically. Light levels are measured by a precision photo diode with cosine and color correction filters, providing readings in foot‑candles or lux with ±5% accuracy.

Field‑friendly features include Data Hold, Min/Max recording, and an auto power off function that can be disabled for long‑term monitoring. The meter is CE compliant and backed by a one‑year warranty.

Typical applications include HVAC system balancing, plant maintenance, indoor air quality assessments, and industrial hygiene monitoring.

Features

• Measures: air velocity, airflow, air temperature, Type K temperature, humidity, wet bulb, dew point, windchill, heat index, light level
• Air velocity range: 80 to 3937 ft/min (±3%FS accuracy)
• Airflow range: 0.847 to 1,271,300 CFM; 0.024 to 36,000 CMM
• Air temperature range: 32 to 122°F (±2.5°F accuracy)
• Type K temperature range: -148 to 2372°F (±(0.4% + 1.8°F) accuracy)
• Humidity range: 10 to 95% RH (±0.4% accuracy)
• Light range: 0 to 1860 Fc (0 to 20,000 Lux), ±5% accuracy
• Replaceable mini vane with low‑friction ball bearing
• Capacitive humidity sensor for high accuracy
• Precision photo diode with cosine/correction filter
• Data Hold, Min/Max, auto power off with disable
• CE compliant, 1‑year warranty