QUEST M-28 Noise Logging Dosimeter 30 - 146 dB with UL Intrinsic Safety

one professional NOISE LOGGING DOSIMETER

Manuf.: QUEST Electronics / USA

Model: M-28

S/N GX0050002t

with QUEST PN 59-847 Original Microphone -- 8 mm PZT ceramic special type
with QUEST MODEL BX-9 Battery Exchange Adapter
with QUEST Instructions Manual ( ORIGINAL )

General description:

The microprocessor based M-28 Noise Logging Dosimeter can be used as a personal noise dosimeter, an area monitor and as a noise survey instrument
As a community or airport monitor, it can monitor average, peak or maximum levels as every 10 seconds as well as calculate exceedance and day / night Levels.

Specifications:

Standards : ANSI  S14 - 1.25 and IEC 651 and 804
UL Instrinsic Safety:  CLASS I to III
Noise Range total ( selectabel Compliance Ranges ): 30 to 146 dB total ....
Different modes selectabel
( 3dB Community Residental Noise....Community Traffis Noise ....OSHA Hearing Coservation ....OSHA Compliance.... Dept. of Defense..... Canada Industrial Noise Monitoring )
Detector : true RMS; 63 dB pulse range
Weighting Chracteristics: .....selectable..."A" or "C" .....20 Hz to 10 kHz
Display . Liquid Crystal .01 to 2999
Power Supply: single 9V ALKALINE - 80 hrs battery life - one NEW battery included
Printout: RS-232 serial......or CENTRONICS Parallel

Instrument is in used, exccellent cosmetic condition and 100 % functional... comes out of GERMAN GOV LAB

Items delivered:

QUEST M-28 Noise Logging Dosimeter with new battery
QUEST Microphone PN 59-847
QUEST Model BX-9 Battery Change Adaptor
QUEST Instruction Manual - ORIGINAL -
QUEST Transport Protection Box with Tripod Support Clamp ( see Photo )