Tenma 72-2680 Sound Level Calibrator

Standard 94 dB and 114 dB/1000 Hz sound calibrator, useful to calibrate the “Sound Level meter” precisely. The 72-2680 from Tenma is a sound level calibrator. It is a useful tool to calibrate the sound level meter. It is supplied with two alkaline type, DC 9V batteries (006P, MN1604 PP3). Frequency of 1000Hz (±5% tolerance) Sound pressure level range from 94dB and 114dB 0.5 inch or 1 inch microphone and built-in battery test indicator Operating temperature range from 0°C to 50°C 12 month limited warranty (view Terms & Conditions for details) Features: Useful tool to calibrate the sound level meter precisely Frequency: 1,000Hz ±5% Sound Pressure Level: 94 dB and 114 dB. Suitable Microphone Type: 0.5 inch or 1 inch microphone. Power: 2 PCs 006P DC 9V batteries Calibration Procedures: Insert the microphone of “SOUND LEVEL METER” carefully all the way into the coupler section of the 72-2680. Set the “Sound Level Meter” to a range suitable for measuring “94 dB” or “114 dB”. Set the “OFF/94 dB/114 dB” to “94 dB” or “114 dB” position. A pure 1,000 Hz tone is produced. Adjust the calibration VR (knob) of the “ Sound Level Meter”. Until that the display reach to 94.0 dB or 114.0 dB exactly