Light Spectrometer Wavelength vs RevDash

Measures light spectrum to determine the dominant wavelength in nm, frequency in THz and period length in fs. DOMINANT WAVELENGTH Dominant wavelength is a concept commonly used in the field of color science and perception. It refers to the wavelength of light that appears most prominent or dominant in a given color mixture or light source. In other words, it is the wavelength that our eyes perceive as the primary color in a mixture of different wavelengths. For light with only one wavelength, such as the light from a colored LED, the dominant wavelength corresponds to the wavelength of that light. KEY FEATURES • High accuracy • Real-time measurement • Measures light wavelength in nanometers (nm) • Measures light frequency in terahertz (Thz) • Measures light period length in femtoseconds (fs) • Easy to use • Save measurements with notes • Supports 40 languages, including english • Optional calibration for enhanced precision MEASURING 1. Find a white surface, such as a plain piece of white paper 2. Point your camera at the surface illuminated by your target light source 3. The app gives you accurate measurements in real-time LIMITATIONS Smartphone cameras have limitations when it comes to distinguishing between different very short, or very long wavelengths. More specifically, on many devices the accuracy below 465 nm and above 610 nm is very limited. This is due to the physical camera sensors in the devices. An automatic warning appears on the screen for these short and long wavelengths. WHITE LIGHT Note that is not meaningful to measure the dominant wavelength of white light as white light consists of a wide range of wavelengths, with no wavelength dominating. This app is made for measuring colored light. If you are interested in determining the color temperature of white light, please instead use our popular White Balance Kelvin Meter app. COLOR OF SURFACES If you want to measure the color of a surface or material, rather than of light, please instead use our popular Colorimeter Camera Color Meter app. Privacy Policy, https://spectrometer.contechity.com/pp.html End User License Agreement, https://spectrometer.contechity.com/eula.html CONTACT I value your feedback. Email me at apps@contechity.com with any suggestions or questions. Download the Spectrometer now!

RevDash turns your iPhone into a premium automotive dashboard. Connect a compatible ELM327 BLE 4.0 OBD-II adapter to your vehicle and get real-time visibility into everything your car is doing — engine RPM, coolant temperature, vehicle speed, fuel consumption, and more. LIVE DASHBOARD Monitor your vehicle's vital signs in real time with a clean, instrument-cluster-inspired interface. Gauges update live as you drive, with color-coded indicators that alert you before a problem becomes serious. AUTOMATIC TRIP RECORDING RevDash detects when your engine starts and stops, automatically logging every trip without you lifting a finger. Review your full trip history with distance, duration, fuel consumed, and route maps. DRIVING INSIGHTS VIA APPLE INTELLIGENCE Get weekly summaries and pattern analysis powered by Apple Intelligence. Understand your driving habits, journey profiles, and fuel economy trends over time. DIAGNOSTIC TROUBLE CODES Read and clear OBD-II diagnostic codes directly from the app. RevDash shows plain-language descriptions per vehicle so you know exactly what your car is telling you. WIDGETS & LIVE ACTIVITIES Keep your last trip stats and active trip progress visible from your screen and Dynamic Island — no need to open the app. MULTI-VEHICLE SUPPORT Manage multiple vehicles from a single account. Each vehicle maintains its own trip history, diagnostic records, and settings. DESIGNED FOR DRIVERS Dark-first UI built for readability at night and in sunlight. No subscriptions. No ads. No data collection. Your driving data stays on your device. REQUIREMENTS - Compatible ELM327 BLE 4.0 OBD-II Bluetooth adapter - Vehicle with OBD-II port (most cars manufactured after 1996) - iPhone with Bluetooth and Location enabled