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Casella Cel-244, Digital Sound Level Meter

Includes Small Foam Windscreen;  Wrist Strap;  3 X Aa Batteries;  Calibration Certificate;  Features Ansi & Iec Type 2 Accuracy;  30 To 130 Db Total Dynamic Range;  Two 70 Db Measurement Range;  Ansi & Iec Type 2 Accuracy;  30 To 130 Db Total Dynamic Range;  Two 70 Db Measurement Ranges;  A & C Frequency Weighting;  Slow, Fast And Impulse Time Weightings;  3 Db And 5 Db Exchange Rates;  Measures Instantaneous (lp) And Maximum (lmax) Noise Level;  Measures Leq And Losha Time Average Noise Levels;  Large Digital Display On 128 X 128 Dot Matrix Screen;  Display Of Last 1 Or 5 Minute Sound Level Trend;  Bar Graph Showing Instant, Max And Average Levels;  Ac Output Signal To Other Devices;  Powered From 3 Aa Batteries;  Digital Output Of Current Sound Level Via Usb To Db24 Software (sold Separatly);  Tripod Mounting Socket;  Upgradeable To Cel-246 Model By Return To Casella Usa;  The Cel-244 Is A Simple Integrating Sound Level Meter That Is Ideal For Use In Many Situations Where The Noise Levels Are Changing Too Rapidly To Be Estimated Accurately By Eye. It Features 2 Ranges From 30 To 100 Db And 60 To 130 Db And Provides The Standardized A And C Broadband Frequency Weightings Required By Many Protocols. The Cel-244 Also Has The Slow, Fast And Impulse Time Responses. A Maximum Hold Function With A User Reset Is Available To Capture The Highest Level Of Noise To Give A "worst Case" Measurement If Needed. The Unit Also Calculates The Ongoing Time Average Value With Either The 5 Db Or The 3 Db Exchange Rate. This Makes It A Useful Meter For Measurements In Workplaces Where An Overall Twa Is Required Or For Community Noise Measurements By Law Enforcement Officials To Compare Against Local Noise Ordinances. Results Are Displayed On A Graphic Lcd In Either Alpha Numeric Format Or As A Scrolling Time History With Either 1 Or 5 Minutes Time History Graph So That Recent Peaks And Troughs May Be Viewed. Calibration Is As Simple As Placing The Calibrator Over The Microphone And Switching It On. As Soon As The Calibration Tone Is Steady It Is Automatically Detected By The Cel-244 And The User Is Offered The Choice Of Performing The Calibration With A Single Button Press. There Is No Need To Use Old Fashioned Screwdrivers That May Get Lost As The Calibration Takes Just 5 Seconds And Is Very Easy To Perform. The Cel-244 Is Provided With A Standard Quarter Inch Socket So That It Can Be Mounted On A Tripod Or Other Similar Fixtures In A Secure Manner. A Small Foam Windscreen Provided As A Standard Accessory Protects The Microphone From Wind Induced Errors When Making Measurements And A Wrist Strap Minimizes The Risk That The Meter Will Not Be Dropped When In Use. Analog Ac And Optional Dc Outputs Are Available To Connect The Cel-244 To Other Pieces Of Equipment And A Low Power Digital Output Is Also Provided Through The Usb Interface Which Can Also Be Used To Power The Meter If Required.

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