Buy a calibration kit. Just do it. And no, you won't find anything better for the same price (I've tried). I really like this thing, it's very accurate (by NIST calibration) and has around 15-16 hours of write time at the highest bitrate - more if you turn it down a bit. The display is easy to read, the buttons work well and are intuitive to use. The sound in the leaderboard comes from the SOFTWARE. The software is TERRIBLE, illogical and generally difficult to use. Apparently it was rushed to market and unsupported. Just export the entire dataset to Excel and process it manually, it's better that way (good luck with the connection! - you'll end up making money, but be prepared for a bit of a struggle). A tip: Use a very high quality USB cable. Do not use unnecessary or supplied cables. It's readable.
π Cadrim Digital Sound Level Meter: Accurate Measurement and Noise Control Solution
6 Review
π Enhancing Accuracy on the Go: Introducing Protmex Portable Measurement Accuracy Selection
7 Review
Portable Pressure Measurement Measuring Momenturn
10 Review
π BAFX Products Pressure 30 - 130DBA Warranty
9 Review
Digital multimeter RGK DM-12
6 Review
π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review
π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review
π₯ Advanced Testo Wireless Hot Wire Anemometer Technology
4 Review