Class 2 Dual-Channel Noise Dosimeter

The Class 2 Dual-Channel Noise Dosimeter is designed for accurate measurement of noise exposure, adhering to ISO 9612 and MIRE (Microphone in Real Ear) measurement standards (ISO 11904-1). It offers advanced features like 1/3 octave analysis and dual-channel noise measurement, making it ideal for environments where noise exposure may come from multiple directions or specific sources such as headphones. This dosimeter is perfect for applications where traditional dosimetry methods are ineffective, such as in call centers or environments with close-ear sound sources.

Features a high-resolution OLED display, allowing easy readability even in bright daylight. It also boasts a large memory capacity, upgraded with a microSD card, providing ample storage for data. The device’s dual-channel measurement capability ensures accurate assessment of noise exposure from both sides of the head or inside and outside hearing protection. Additionally, it features a built-in frequency analyzer and supports audio recording, enabling precise analysis and eliminating false readings caused by background sounds.

Key Features:
Built-in Frequency Analyzer: Supports 1/1 and 1/3 octave analysis for accurate noise measurement.
Simultaneous Audio Recording: Records audio events while performing noise measurements to help eliminate false readings.
Dual-Channel Noise Measurement: Allows for the simultaneous assessment of noise exposure on both sides of the head or inside and outside hearing protection.
MIRE Measurement: Uses a specialized microphone probe (SV 25S) to measure noise inside the ear canal and perform one-third octave analysis for accurate noise exposure in challenging environments like call centers.
High-Resolution OLED Display: Provides clear, bright readings even in full daylight.
Large Storage Capacity: Features microSD card support for extensive data storage.
LED Status Indicator: The LED changes color to indicate when the noise dose exceeds the preset limit.
Low Power Consumption: Powered by two AAA batteries for long-lasting use.
Fully Supported by Supervisor Software: Dedicated software for Health and Safety applications, offering enhanced functionality and ease of use.

Our Products Are…
  • Economically Priced
  • Futuristic Technology
  • Guaranteed Performance with Premium Quality
  • High Reliability
Hardware Features 
  
Number of channels2
Auto-calibrationYes
Keyboard lockYes
Communication InterfacesUSB
LED indicatorYes
DisplayYes
Keyboard4 buttons
Memory8 GB
Battery typeTwo AA batteries (alkaline)
Operating time> 16 h
Operating temperature range-10 °C ÷ +50 °C
Humidity rangeup to 90 % RH
Weight260g
Size95 x 83 x 33 mm
Sound measurements features 
  
StandardsIEC 61252; ANSI S1.25-1991; Class 2: IEC 61672:2002, ISO 11904-1
Microphone typeSV 25D, Class 2 ; SV 25S, special microphone with probe for MIRE (option)
Linear operating range to IEC 6167245 dBA Leq÷ 141 dBA Peak
Frequency range20 Hz ÷ 20 kHz
Weighting filtersA, C and Z
Statistics in octaves or third octavesYes
Audio recordingoption
Voice comentsYes
1/1 octaveoption
1/3 octaveoption