Fan Law Calculator allows users to input rpm, cfm, static pressure, and horsepower. Modifying one value recalculates the others. Ductulator helps size HVAC ducts by inputting shape, dimensions, air temperature, elevation, and roughness.
Measure ambient sounds and noise levels using iPhone or iPod. Record audio and view real-time decibel readings. Stop recording at any time and playback recorded . Display FFT viewer and frequency for detailed analysis.
Measures distances using ultrasonic pulses. Users send a sound wave and calculate distance based on echo return time. The displays real-time measurements in inches or centimeters. It works outdoors and indoors for accurate readings.
