• Easy one-hand operation.
• Measures sound according to the sensitivity of the human ear.
• Maximum value recording.
• Three measurement ranges from 35db to 130db.
• Accuracy ± 1.5db.
• Two time weighting curves: slow (550ms) and fast (55ms).
• Two frequency weighting curves: A and C.
• Auxiliary output for recording.
• Optional tripod mount.
• Backlit display.
• Lightweight and compact.
• Includes protective safety holster.

Applications

• Factories.
• Schools, Libraries.
• Airports.
• Offices.
• Studios.
• Auditoriums.
• Hospitals.

Measurement Conditions
If the difference of level between the absence and the presence of noise to be measured is 10db or more, the influence of background noise on the measurement may be considered negligible.

If the difference is lower at this level, a compensation correction (see table below) must be applied to the measurement performed to integrate the background noise.
 

Measurement Range

 

35db to 80db
50db to 100db
80db to 130db

Measurement Rate

2.5 times per second

Frequency Range

31.5Hz to 8000Hz

Accuracy

± 1.5db

Resolution

0.1db

Precision

± 2.0db

Display

2000 count

Sensor Type
 

0.5" electric (prepolarized) condenser microphone. True RMS
measurement with independent frequency weightiness.

Applicable Standard

IEC 651 type 2/ANSI S 1.4 type 2/JIS C 1502

Auxiliary Outlet
 

DC output 10mV/db - 50Ω
AC output 1.0Vrms - 600Ω

Frequency Weighting

Curves A and C

Time Weighting

Mechanical Specifications

Dimensions

Weight

Power Source

Catalog No.

Description

2121.23

Sound Level Meter Model CA832