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Sound Level Meter

DLSPH Occupational Health

A black plastic box contains a red and black sound level meter.

The meter (Quest Electronics Permissible Sound Level Meter, Model 215) has red sides and a black top surface with a black and white dial and two black switches. On the right side are two shiny metallic knobs.

The case contains a sound calibrator (Quest Sound Calibrator Model CA-12) in the form of a red cylinder with a tapering silver top section.

The case contains several smaller items including a screwdriver with a clear green handle, a 9-volt battery, and two black plastic “caps” and a private letter pertaining to the instrument’s use.

Accession Number: 2016.phlt.1.114.1-8

Alternative Name:

Primary Materials: Metal, Plastic


The words “Not Intrinsically Safe” are written in pen on a piece of masking tape covering the top surface of the sound level meter.

A “calibration date” and “next service due” date appear on a label from Levitt-Safety Limited, which is on the back of the sound level meter. These dates are “July 25/ 02
and July 25/ 03” The same label appears on the sound calibrator.

The serial number embossed on a label on the back of the sound level meter is “M20200048”.

The serial number on the sound calibrator is U2020087.

The sound calibrator features a sticker that reads:

Dimensions (cm):

Case: Length = 31.5, Length = 16.5, Height = 10


This kit includes a meter for testing sound levels as well as associated calibration equipment.

Condition: Excellent

Associated Instruments:


Quest Electronics, Oconomowoc, Wisconsin

Date of Manufacture:

Late 20th c./ early 21st c. (before 2003)


Correspondence found in the instrument case suggest that this was used by workers at ExxonMobile, Canada around 2005.

Additional Information and References:

Historical Notes: