The HT602B volume level meter is distinguished by its high sensitivity and will prove useful in places such as construction sites and factories. The color LCD display will provide you with the most important information, and an additional wind shield ensures accurate measurements regardless of the conditions. The device offers several operating modes, and with the ability to connect it to a computer via USB you will gain convenient access to data. In addition, 3 AAA batteries are required to power the meter. The product has a condenser microphone, which is distinguished by a short response time and is immune to interference. As a result, measurements in the range of 30-130 dB (A) and frequencies of 30Hz-8kHz are possible. You'll also find a special wind shield included - use it to prevent unnecessary noise from interfering with the device. You can also use two frequency measurement options - A and C. In addition, the HT602B allows you to take measurements in Fast (125 ms) or Slow (1 s) mode. The device is very easy to use. You will gain access to specific functions using convenient, intuitive buttons. The meter is also equipped with an LCD screen, which will provide you with information about the operation of the device. From it you will read the measurement results, the selected operation mode and a low battery notification. HT602B is lightweight, handy and compact. Thanks to this, its storage will not cause you any problems - you can successfully put it in your pocket. In addition, a special cover protects the probe from damage. Moreover, the meter is suitable for many applications. It will come in handy in the factory, at the construction site, it will also allow you to measure the noise level of a car engine. Thus, it will prove indispensable wherever sounds of different intensity may occur. Features: - Manufacturer: Habotest - Model: HT602B - Measurement range: 30-130dBA - Measurement accuracy: ± 1.5dB (94dB@1kHz), ± 5dB (94dB@8kHz). - Frequency response: 30Hz-8kHz - Measurement: A - Dynamic characteristics: FAST: 125 ms, SLOW: 1 s - Microphone: Polarized, capacitive - Temperature: -20°C ~ 60°C (-4°F ~ 140°F) / ±1.5°C - Humidity: 0~100% / ±5% - Bar graph: Yes - Data storage: Yes - Backlighting: Yes - MAX/MIN: Yes - Automatic shutdown: Yes - Low battery indicator: Yes Included - sound level meter - AAA x3 batteries - instruction manual