à¤Ã×èͧÇÑ´ÃдѺ¤ÇÒÁ´Ñ§àÊÕ§ Sound Meter > SC-05: 94/114dB Sound Calibrator µÑÇÊͺà·Õºà¤Ã×èͧÇÑ´àÊÕ§ à¤Ã×èͧÇÑ´àÊÕ§ Product Description This is a brand new CEM SC-05 industrial sound level meter calibrator. This device is designed to calibrate sound meters with 1/2" and 1/4" microphone. This calibrator complies with IEC 942 Class 2 standard. Its compact size makes the device very easy to carry and handle. Ideally, the sound meter should be calibrated once a year. FEATURES * Dual sound pressure outputs at 94dB and 114dB which can be selected by a switch. * Operates on a single 9V battery. * Auto sound off on low battery to ensure accurate performance. SPECIFICATIONS * Output sound pressure levels: 114 dB and 94 dB * Output frequency: 1000Hz +/- 4% * Reference conditions: temperature at 23 deg C (73 deg F); Air pressure at 1013 mbar; Humidity at 65%RH * Accuracy: +/- 0.5 dB * Power: 9V battery * Compliance: IEC 942 Class2 * Dimensions: 120 (L) x 51 (W) x 43 (H) mm * Weight: approx. 130g à¤Ã×èͧÇÑ´ÃдѺ¤ÇÒÁ´Ñ§àÊÕ§ Sound Meter > SC-05: 94/114dB Sound Calibrator µÑÇÊͺà·Õºà¤Ã×èͧÇÑ´àÊÕ§ à¤Ã×èͧÇÑ´àÊÕ§