Product Description View largerUSB Sound Level DataloggerHigh accuracy datalogging of up to 129,920 records (with real time clock stamp) using a USB interface for easy setup and download. Designed to meet ANSI and IEC 61672 Class 2 standards with ±1.4dB accuracy. 30 to 130dB measurement range.Additional FeaturesThis datalogger provides A/C weighting, fast/slow response time, user-selectable data sampling rate (50ms, 500ms, 1s, 2s, 5s, 10s, 60s) and two start methods: programmed (from PC) or manual.IncludesComes with 3.6V lithium battery, Windows compatible software, USB cover, tripod, windscreen, and user manual. Model 407760-NIST is also available with a Certificate of Calibration Traceable to NIST. HD600View largerDatalogging Sound Level MeterSound Level Meter meets ANSI and IEC 61672-1 Type 2 standards. It has three measuring ranges from 30 to 130dB with 1.4dB accuracy. In addition to the LCD digital display, an analog bargraph provides easy viewing of fast changing sound levels. Features include: selectable Frequency Weighting (‘A’ and ‘C’), selectable Response Time (Fast and Slow), Max/Min Hold, Auto Power Off, AC/DC analog outputs, and a rugged double molded housing with built-in stand. The meter has a datalogging capability of up to 20,000 records with user-settable sampling rate from 1 to 59 seconds. Readings are displayed and recorded with real date and time stamp. Meter comes complete with USB cable, Windows compatible software, windscreen, tripod, hard carrying case, and 9V battery. Model HD600-NIST is also available with a Certificate of Calibration Traceable to NIST.SDL600View largerDatalogging Sound Level Meter with SD CardRecords data on an SD card in MS Excel format. High accuracy ±1.4dB meets ANSI and IEC 61672-1 Type 2 standards. 30 to 130dB measurement range with Auto or Manual ranging and an AC analog output for connection to an analyzer or recorder. Measurements are displayed on a large backlit LCD. You can manually store/recall up to 99 readings or datalog up to 20M readings via 2G SD card. The datalogger date/time stamps and stores readings on an SD card in MS Excel format for easy transfer to a PC. User programmable sampling rate: 1 to 3600 seconds. Additional features include: Min/Max, Data Hold, Auto Power Off to conserve battery life, and a built-in PC interface. Complete with six AA batteries, SD Card, windscreen, and hard carrying case. Model SDL600-NIST is also available with a Certificate of Calibration Traceable to NIST.407744View larger94dB Sound Calibrator1kHz 94dB professional sound calibrator for 0.5" or 1.0" microphones calibrates and verifies sound level meter operation. Battery test position with battery status LED indicates if battery is good. Durable die-cast aluminum housing generates a 1kHz sine wave at 94dB to an accuracy of 5% (frequency) and ±0.5dB (94dB). Meets IEC standard 60942 1997-11 and comes complete with two 9V batteries, carrying case, and screwdriver. Model 407744-NIST is also available with a Certificate of Calibration Traceable to NIST. 407766 94dB/114dB Sound Calibrator1kHz 94/114dB professional sound calibrator for 0.5" or 1.0" microphones calibrates and verifies sound level meter operation. Level position switch to select 94dB or 114dB with power on LED indicator light. Durable die-cast aluminum housing generates a 1kHz sine wave at 94dB/114dB to an accuracy of 5% (frequency) and ±0.5dB (94dB)/±1.0dB (114dB). Meets IEC standard 60942 1997-11and comes complete with two 9V batteries, carrying case, and screwdriver. Model 407766-NIST is also available with a Certificate of Calibration Traceable to NIST. From the Manufacturer High accuracy datalogging of up to 129,920 records using a USB interface for easy setup and download. Designed to meet ANSI and IEC 61672 Class 2 standards. It features A/C weighting, fast/slow response time, user-selectable data sampling rate and two start methods: programmed (from PC) or manual. Complete with 3.6 Volts lithium battery, Windows compatible software, USB cover, tripod, and windscreen.