Impulse Noise Decibel Meter vs Level Tool

Firearm Noise Testing | Sound Level Meter helps you monitor sound levels (dB) in real time. It’s designed for very loud environments such as workshops, concerts, and outdoor ranges, so you can make better hearing-safety decisions. The app uses your phone’s microphone to estimate sound pressure level and shows current, minimum, average, and maximum readings with clear visual feedback. Key features • Real-time decibel meter (dB) • Min / Avg / Max tracking • A-weighting (dBA) for everyday noise (closest to human hearing) • C-weighting (dBC) for very loud environments and peak levels • Linear mode for raw/technical readings (no filtering) • Sensitivity calibration (+/−) to compensate for device microphone differences • Clean, readable interface for quick checks Important notes • This app is not a certified or laboratory-grade sound level meter. Readings vary by device model, microphone hardware, phone case, distance, and environment. • For general information and personal awareness only. Not intended for legal, regulatory, medical, or workplace compliance measurements. • Very loud sounds can damage hearing quickly. Always use appropriate hearing protection in loud environments. Privacy • Microphone input is used only to calculate sound level. • We do not sell personal data.

Turn your iPhone into the ultimate measuring toolkit. Nivelo packs 11 precision instruments into one app — no ads cluttering the screen, no unnecessary permissions, just tools that work. WHAT'S INSIDE - Bubble Level — Check any surface in seconds. Three modes: surface, 360-degree, and 3-in-1 view. - Angle Finder — Measure angles with real-time precision using your device sensors. - Protractor — Full on-screen protractor for quick angle readings. - 3D Angle Finder — Measure pitch, roll, and yaw simultaneously in three dimensions. - Laser Level — Project virtual laser lines through your camera for alignment on any wall. - Ruler — Accurate on-screen ruler in centimeters and inches. - Metal Detector — Use the magnetometer to detect metal objects nearby. - Inclinometer — Measure slopes and tilts with degree accuracy. - Compass — Full digital compass with cardinal directions and degree heading. - Plumb Line — Check vertical alignment with a simulated plumb bob. - Barometer — Monitor atmospheric pressure with the built-in altimeter sensor. BUILT FOR REAL WORK Haptic feedback lets you feel when a surface is level. Turn on the flashlight when measuring in dark spaces. Sound alerts confirm level status without looking at the screen. Calibrate sensors for accuracy on your specific device. One app instead of a toolbox full of separate downloads. Whether you're hanging a picture frame, checking a shelf, or working on a construction site — Nivelo has the right tool ready. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/