Amprobe SM-10, SM-20-A Catalog Page

SM-20-A

SM-10 and SM-20-A Sound Meters

These sound meters meet the measurement needs of safety engineers, health, industrial and
safety offices as well as quality control. Use them to check compliance with safety regulations and
perform acoustic analysis. They use two different weighting filters required by the IEC 651 and
ANSI S1.4 Type 2 for audio filtering.

• A-weighting for general noise sound level

• C-weighting for measuring sound level
of acoustic material control in various
environments

FEATURES SM-10 SM-20-A

Microphone 1/2” Electret condenser microphone

Standard Applied IEC 651 Type 2, ANSI S1.4 Type 2

Dynamic Range 50 dB

Time Weighting FAST (125 mS), SLOW (1 sec)

Frequency Range

Measuring Level
Range (Auto Range)

Data Data hold Min/max

Internal Memory – 14000 records

INCLUDED ACCESSORIES: Carrying case, user manual, battery (installed), USB cable download
and software CD (SM-20-A only)

• Display with 0.1dB steps on a 4-digit LCD

• Slow (1 sec) and fast (125ms) response
to check peak and average noise levels

•

PC interfaces (SM-20-A only)

^

31.5 Hz

A-Weighting: 30 dB
C-Weighting: 35 dB

8 kHz

^

130 dB

^

130 dB

settings

TOP RATE D

“I work in a manufacturing plant
and regularly check sound levels
to make sure we are using the
right hearing protection. We have
been using the Amprobe SM-20-A
Sound Meter for its ease of use
and simple operations, and quick
and easy testing. Love it and
recommend it to everyone.”

- SM-20-A
customer review

SM-CAL1 Sound Meter Calibrator

This instrument generates the fixed sound level signals needed to calibrate sound level meters.

• Two output levels: 94 dB and 114 dB

• Output frequency: 1000Hz

• Fits 0.5" microphones

• Easy one-handed operation

INCLUDED ACCESSORIES: Battery (installed), user manual

• Low battery indicator

• CE: conforms to ANSI S1.40 – 1984 and
IEC942 – 1988 Class 2

50

SM-CAL1