ATP E-Catalogue 2024 - Catalog - Page 37
MET-933 Auto Ranging Sound Level Meter
dB
A/C
Freq
Fast
Slow
Data
Hold
Min
Hold
Max
Hold
Back
Light
Auto
Off
Low
Battery
1
CAL
Battery
The MET-933 is a lightweight and user-friendly sound level indicator offering 4 measurement
ranges (3 manually selectable, 1 auto range). It offers selectable 8A9 or 8C9 frequency
weightings and a choice of either Fast or Slow time weightings. It is designed to match the
accuracies required of IEC 61672:2013 at ±1.4dB.
Sound
Frequency range of 31.5Hz to 8kHz
1dB resolution
LCD display backlight
Max hold – displays the highest measured value
Min hold – displays the lowest measured value
Data hold
Low battery indicator
Auto power off after 15 minutes of inactivity
130dB
x 0.1 dB
30dB
Supplied with: Soft carry case, wind muffler and battery
Accessories: Spare Wind Muffler (SL-WM1 + £3.50)
View Product
MET-958 Data Logging Sound Level Meter
dB
A/C
Freq
Fast
Slow
Data
Hold
Data
Logging
Min
Hold
Max
Hold
Back
Light
USB
Auto
Off
Low
Battery
Battery
ACDC
2
CAL
The MET-958 is a data-logging sound meter with 4 measurement ranges (3 manual, 1 auto). It offers selectable
8A9 or 8C9 frequency weightings and a choice of either 8Fast9 or 8Slow9 time weightings. The data logging feature
can record up to 262,100 readings at intervals of 1 second to 10 hours. The ±1.4dB accuracy is designed to
match the requirements of IEC 61672:2013. Featuring an ergonomically designed grip, simple function buttons
and a USB connection it is easy to use.
Sound
LCD display backlight
Data hold
Max hold – displays highest measured value
Min hold – displays lowest measured value
Low battery indicator
Auto power off after 15 minutes of inactivity
(unless in record mode)
Battery or mains powers (remove battery)
1/4” camera bush for tripod mounting
Supplied with: Hard carry case, wind muffler,
3.5mm earphone plug, USB cable (1m), software,
AC/DC mains power adaptor and battery.
Accessories: Wind muffler (SL-WM2 + £3.50)
Sound
130dB
Technical Specifications
1
MET-933
2
MET-958
30 to 80dB
50 to 100dB
80 to 130dB
30 to 130dB (auto)
30 to 80dB
50 to 100dB
80 to 130dB
30 to 130dB (auto)
Measurement
Parameters
Lp, Lmax, Lmin
Lp, Lmax, Lmin
Resolution
0.1dB, 1dB (bargraph)
0.1dB
Measurement
Ranges
Accuracy
±1.4dB (94dB @ 1KHz)
±1.4dB (94dB @ 1KHz)
Frequency Range
31.5KHz - 8KHz
31.5KHz - 8KHz
Frequency
Weightings
'A' or 'C'
'A' or 'C'
Time Weightings
Fast or Slow
Fast or Slow
Dimensions
158 x 62 x 33mm
252 x 66 x 33mm
Screen Size
35mm
55mm
Weight
178g
262g
Power
1 x 9V PP3 alkaline battery
(LR-61)
1 x 9V PP3 alkaline battery
(LR-61)
Price
£72.00
£214.00
sales@atp-instruments.co.uk
01530 566800
x 0.1 dB
30dB
View Product
Calibration Options
CAL
Certificate
Issued at
Price
CAL-SL
94dB & 104dB at a frequency range of 1Khz
£83.00
www.atp-instrumentation.co.uk
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