Did what I needed. It never seems to go below 30-35 decibels, but then I read somewhere online that the library is between 30-40 decibels, so it seems to be working great. A minor downside is that the instructions say it may need to be recalibrated at some point in the future, but there don't seem to be any instructions on how to do that.
π Hand-Held Sound Level Meter - Decibel Sound Meter, 30dB to 130dB(A) Range, Backlight Alert, Noise Level Monitor for Home, Office, Job-site
4 Review
π DIMMAIRY Decibel Meter: Accurate Sound Level Measurement 30-130dB with Backlight, MAXMIN & Data Hold
3 Review
π Professional Red/Black Digital Handheld Sound Level Meter - Automatically Metered with A and C Frequency Weighting for Musicians and Sound Audio Experts - Battery Operated (9V) - Pyle SPL25
5 Review
π REED Instruments R8050 Sound Level Meter: Type 2, 30-100 & 60-130dB with +/-1.4 dB Accuracy
6 Review
π CAMWAY 6 Inch Digital Caliper with LCD Display, Electronic Vernier Caliper, 150mm Stainless Steel Feeler Gauge, Plastic Digital Caliper Set for Zero Setting Inside/Outside Diameter, Depth, and Step Measurement Tool
3 Review
β Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
8 Review
Triangle Group TR918 225/45 R18 95V summer
61 Review
Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review