Hyjoy Decibel Meter 30-130dB SPL — LCD Color Screen, dB/SONE Units, Weighting, MAX/MIN, Data Hold, SLOW Response

Portable Hyjoy sound level meter measuring 30-130 dB with ±1.5 dB accuracy and 0.1 dB resolution. It uses a condenser microphone with a frequency range of 31.5 Hz to 8 kHz to deliver reliable noise readings for workplace and environmental checks. The unit supports weighting modes to tailor measurements: one mode emphasizes low-frequency ambient noise for general environment monitoring, while the other focuses on mid-frequency mechanical noise suited to industrial settings. Readouts are available in dB (sound intensity) and SONE (perceived loudness), making the meter useful in homes, offices, classrooms, factories, and audio-related applications. Two response settings are provided: a fast 0.125 second time constant for rapidly changing or transient sounds (such as traffic) and a SLOW 1 second time constant for steady-state noise. Handy functions include maximum/recording and data hold for capturing and reviewing readings. The meter features a color LCD, a soft rubber grip, handheld form factor, and comes with a cloth case for protection and easy transport.