The Extech EN510 is a compact, high-performance environmental meter that measures 10 key parameters: Air Velocity, Air Flow (CFM/CMM), Ambient & Type K Temperature, Relative Humidity, Wet Bulb, Dew Point, Heat Index, Wind Chill, and Light Level. Featuring a replaceable low-friction mini vane, precision photo diode with cosine/color correction, and Type K input (up to 2372°F), it’s ideal for HVAC, building diagnostics, and environmental monitoring. Includes backlit dual LCD, Data Hold, Min/Max, and tripod mount.