SPL meter point must be accurate. It's not calibrated or shipped out of the box so it's useless. You should find someone with a calibrated SPL meter that you can calibrate for reference. What the hell?!
π§ DROK Microphone-Switchable Controller for Headphones
7 Review
SNDWAY SW 525A 30 130DB Digital Display
π BAFX Products Pressure 30 - 130DBA Warranty
9 Review
π Enhancing Accuracy on the Go: Introducing Protmex Portable Measurement Accuracy Selection
Digital multimeter RGK DM-12
6 Review
π₯ Advanced Testo Wireless Hot Wire Anemometer Technology
4 Review
π§ UEi Test Instruments DAFM3B Digital Multimeter
π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration