The UK casella CEL-242 and CEL-246 are upgraded versions of the CEL-240 and CEL-244, respectively. They add storage functionality to the original two instruments and can store up to 419000 data points, as well as historical time and measured parameter values

the United Kingdomcasella CEL-246Precision sound level meterMain Features

Easy to operate

durable. Non-slip design

High resolution display screen

Adopting newer digital technologies

Fully compliant with IEC61672 standard

Large measurement range

Can store data

A large 35 hour battery life

USB output to PC

Recording type sound level meter

auto-calibration

The Casella CEL-246 Precision Sound Level Meter Instrument Kit from the UK provides a variety of tools, including all the equipment needed to perform effective noise assessment, including specific sound level meters, toolboxes, windshields, CEL-110/2 calibrators, and manuals. Tools can be specified by adding/K to the end of the part number, such as CEL-246/K1

CEL-246 Precision Sound Level Meter Standard Configuration

CEL-242 (or 246) Sound Level Meter Host, Windproof Ball, Alkaline Battery, Calibration Certificate, User Manual

CEL-242 (246)/K1 Sound Level Meter Host, Calibrator, Windproof Ball, Alkaline Battery, Calibration Certificate, User Manual, Carrying Case

CEL-242 (246)/K2 includes CEL-242 (or 246)/K1, as well as CMC51 USB cable and dB24 software

the United Kingdomcasella CEL-246Precision sound level meterTechnical Specifications:

Measurement range:30-130dBRMS

Optional range: 30-100 60-130dB

Background noise:<30dB (A)

精度： 　　ANSI S1.4 Type 2 IEC 61672-1 2002-5

Frequency weighting: A, C

Time weighted: slow, fast, and pulse

Data display: Simultaneously display real-time noise Lp and large noise Lmax

Maintain high value: The high value display shows no attenuation until the user presses the reset button

Display screen: 128 × 128 dot matrix LCD digital display, real-time analog bar chart display

Display resolution: 0.1dB for digital display, 1dB for analog display

Display update: Updated every 0.5 seconds

Storage: 491000 data points

Graphic display: time span of 1 minute or 5. Calibration method: instrument automatic recognition calibration

Calibration Sound Level: 114.0dB or 94.0dB @ 1kHz

Analog output: 2.5mm headphone jack, 0.85V RMS, very low impedance 22k Ohm

DC output: 2.5mm headphone jack (optional), 0-1.3VDC, impedance 2k Ohm

Digital output: USB 2.0 interface, outputting real-time sound pressure level (optional software),

Output measurement value once per second

Working temperature: 0-40 ℃

Battery: 3 AA alkaline batteries (with a lifespan of over 35 hours) or rechargeable batteries

External power supply: 5VDC, USB interface (optional)

Size and weight: 71.5 × 212 × 31mm, 245g (including battery)