0.1dB resolution.
Range from 30 to 130dB.
Maximum hold function.
A, C, Z frequency weightings.
A, C, Z peak hold function.
Fast, Slow and Impulse dynamic characteristic models.
AC/DC output jack.
Back-screw for tripod fixture.
Micro-USB (1151)
Auto data memory microSD CARD . (1151)

Equipped with a lithium battery, with a battery life of over 12 hours
Compliant with IEC 61672-1 Class 1 standard
Real-time 1/1-Octave and 1/3-Octave analysis
Measurement can be started by internal or external trigger
Comparator output to trigger external devices
Super high – contrast backlight TFT-LCD color display
Dynamic range of 90dB
AC and DC outputs
Data transfer using USB
microSD card

No Mic. Extension Cable required.
Lightweight and small size
Rechargeable battery
Calculates all the popular noise dose parameters
Wide dynamic range from 70 to a full 140dB
Measures simultaneously 3dB, 4dB, 5dB or 6dB exchange rates
Intrinsically safe (660A)

0.1dB Resolution
60dB Dynamic range
26 to 130dB Measurement ranges
A&C Frequency weighting
Fast/Slow Time weighting
Maximum/Minimum/Peak sound level with time
Manual data memory and read

Use Standard Microphone
Compliant with IEC 61672-1 class 2 standard.
Easy to use for Equivalent continuous sound pressure level, Sound exposure level, Percentile level, Maximum level and Minimum level can be measured simultaneously.

0.1dB Resolution
60dB Dynamic range
30 to 130dB Measurement ranges
A&C Frequency weighting
Fast/Slow Time weighting
Maximum/Minimum/Peak sound level with time
Manual data memory and read

0.1dB resolution
conforms to IEC 61672-1 class2 standard
dynamic range 60dB
5 volume files, measuring range from 30 to 130dB
A and C frequency weighted
time weighted fast (FAST), slow (SLOW)
maximum lock

Super high – contrast backlight TFT – LCD color display.
Compliant with IEC 61672-1 class 2 standard
Real-time 1/1-Octave and 1/3-Octave analysis.
Measurement can be started by internal or external trigger.
Comparator output to trigger external devices.
Data transfer using USB.
Dynamic range of 90dB.
Real time clock with calendar.
AC and DC outputs.
micro SD CARD 4GB.

0.1dB Resolution
Range from 30 to 130dB
Fast/Slow dynamic characteristic
A&C Frequency Weighting

Pocket Size/light weight.
Accurate & very easy to use.
Measures % Noise Dose/ Exposure Time / Sound Level.
Security lock (Power off).
Peak 140dBA & 115dBA RMS Flags.
Stores data up to 5 Separate events. (1355)
Real-time clock calendar/RS-232 interface. (1355)
Occupation health application.

Wide linearity range of 100dB
32000 Records Data logging function
RS-232 interface
Real time clock with calendar

Compliant with IEC 61672-1 class2 standard.
Easy to use for Maximum level and
Peak level can be measured simultaneously.
Dynamic range of 60dB
Five range from 30 to 130dB
A&C Frequency Weighting
Fast/Slow dynamic characteristic
200M Records Data logging function (micro SD CARD 4GB)
USB interface
Sound Level Alarm Output
Real time clock with calendar

0.1dB resolution
Range from 35 to 130dB
Maximum hold function
A & C frequency weightings
Fast, Slow and Impulse dynamic characteristic models
AC/DC output jack
Back-screw for tripod fixture

94dB and 114dB Sound Calibration at 1KHz
Accurate and Simple to use
Fits 1”, 1/2” or 1/4” diameter microphone

0.1dB Resolution
Range from 35 to 130dB
Maximum hold function
A & C Frequency Weightings
Fast & Slow dynamic characteristic models
AUX OUTPUT JACKS(1350A)
RS-232 interface (1350R)
Back-screw for tripod fixture