Multifunction Desktop Noise/Decibel Meter — Temp, Humidity & Clock with Alarm | 30-130db ±1.5db

A compact, multifunction desktop instrument for continuous monitoring of environmental noise, temperature, humidity and time, complete with an alarm clock function. Noise: 30-130db, Accuracy ±1.5db. Temperature: 0-50, Accuracy ±1. Humidity: 0 -100%Rh Accuracy ±3%Rh. Many common ambient sounds can interfere with sleep and study and may contribute to mental stress; this unit lets you track those levels at a glance. Built around a capacitive microphone sensor with an ultra-thin metal vibration film, the design uses three conductive layers to set frequency response and sensitivity. The diaphragm is lighter for faster response, providing practical output instantaneous response. Low Battery Prompt: Less than 3.6V ±0.1.