Product Description

Pocket-size meter measures air velocity, temperature, relative humidity, dew point and windchill. Includes tripod mount, 43in. lanyard and CR2032 lithium battery.

Product Details

• Amazon Sales Rank: #16479 in Home Improvement
• Brand: Extech
• Model: 45158
• Number of items: 1
• Dimensions: .80" h x 2.80" w x 5.50" l, 1.00 pounds

Features

• Pocket design meter with flip style case acts as extension handle and protects meter during storage
• Displays air velocity and either relative humidity, dew point or temperature on dual display
• Measuring range 100 to 5500feet/min
• Choice of readings in feet/min, meters/second, kM/hour, MPH or knots
• Rugged water resistant housing floats

Customer Reviews

Nice Anemometer (w/ RH)
This thermo-anemometer gave surprisingly accurate relative humidity readings. However, it's impossible to get it to provide temperature readings as well. Additionally, the 'slide-in-slide-out' feature leaves some pretty nasty scratches on the unit during field use.

Extech 45158 Review
This is the product I chose for a quick-and-dirty checkout of a house duct system. It is more accurate than an IR thermometer and provides the air flow data to determine if there is a duct problem. I am pleased with the product and hope that it lasts quite awhile.

Works well but hard to figure out
The instruction "page" is difficult to figure out exactly how to use this device. After trial and error, it is working as described. I'm not happy with the slow response to wind changes but I guess I don't need to know the wind chaging from 3mph to 3.5mph as fast as I thought.