The Nor-130 Series of Sound Level Meters are designed and manufactured to the latest sound level meter standards and comprises two products. The Nor-131 is a Class 1 (precision) instrument whilst the Nor-132 is designed in accordance with the less accurate Class 2 requirements. Both meters offer the same features with exception of the detachable preamplifier which is only available on the Nor-131 version.

• Single measurement range
• Extremely simple operation
• Parallel L_Aeq and L_Cpeak
• Real-time octaves
• Large internal memory
• Clock synchronized measurements
• Single measurement range
• USB Interface
• Allows use of microphone extension cable (Nor-131 only)
• USB 2.0 Interface
• Allows use of microphone extension cable (Nor-131 only)
• Large back-lighted display
• Complies to IEC and ANSI standards
• 1/1 octave (optional)
• 1/3 octave (optional)
• Statistical analysis (optional)
• Level versus time (optional)

Applications

• Product noise testing
• Noise hazards in the workplace
• Prescription of hearing protection
• Environmental noise investigations
• General purpose sound level meter