Protractor Tool app vs Impulse Noise Decibel Meter

Protractor Tool & Angle Meter is a powerful and versatile measurement app that combines multiple essential tools into one convenient application. Whether you are a professional, student, this app provides accurate and easy-to-use measuring instruments for various needs. Key Features: • Protractor: Accurately measure angles by adjusting the on-screen protractor with your finger. • Ruler: Measure the length of objects with precision. • Inclination Meter: Check the tilt or slope of a surface with real-time measurements. • Bubble Level: Ensure surfaces are perfectly horizontal or vertical. • Plane Angle Measurement: Determine the angles of different planes effortlessly. • Plumb Tool: Verify vertical alignment with this digital plumb bob. • Frame Measurement: Capture and measure objects with an integrated frame tool. • Sound Meter: Monitor environmental noise levels in decibels (dB). • Speed Meter: Measure movement speed with real-time data. • Altitude Meter: Find your current altitude above sea level. • Compass: Navigate easily with a precise digital compass. • Square Feet Calculator: Calculate area measurements instantly. Protractor Tool & Angle Meter is designed to be user-friendly, accurate, and essential for anyone needing on-the-go measurement solutions. Privacy Policy : https://sites.google.com/view/protractor-privacy-policy-ios/home Terms of Usage: https://sites.google.com/view/protractor-privacy-policy-ios/terms-of-usage Contact Us: https://sites.google.com/view/protractor-privacy-policy-ios/contact-us

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.