High accuracy up to ±1.5 dB,Wide measuring range: 30 ~ 130 dB,Tested compatible with Microsoft Windows XP/Vista/7/WIN8 Specifications: LCD display: 4 digits LCD size: 2.2 inch (55 mm) Display: 0.5 secretary Measuring Level: 30 ~ 130 dB(A) (A-weighted decibels), 35 ~ 130 dB(C) (C-weighted decibels) Accuracy: ±1.5 dB Frequency Response: 31.5 Hz ~ 8.5 kHz Resolution: 0.1 dB Sound Level: 30 ~ 130 dB with Level selecting button switches: Level 1: 30 ~ 80 dB Level 2: 50 ~ 100 dB Level 3: 60 ~ 110 dB Level 4: 80 ~ 130 dB Level 5: 30 ~ 130 dB Dynamic Range: 50 dB / 100 dB Overload Indication: OVER / UNDER Frequency Weighting Characteristic: A / C Analog Bar Graph: 1 dB / 1 bar graph Sampling Rate: 20 times / second PWM Signal Output: duty cycle = 0.01 x dB value x 100% / 3.3 Dynamic Characteristic (Time weighting): FAST(high speed) / SLOW(low speed) Calendar Accuracy: ±30 seconds / day The Maximum Value Holding: MAX Microphone: 0.5 inch polarization capacitance microphone Power Supply: 4 x 1.5V AA battery (not include)or USB Cable Power Life: about 20 hours continuous use (alkaline battery) Operating Temperature: 0 ~ 40 °C (32 ~ 104 °F) Operating Humidity: ?80 % R.H. Dimensions: approx. 256 (L) x 70 (W) x 35 (H) mm (10.1 x 2.8 x 1.4 inch) Weight: approx. 308 g (without battery) FAST / SLOW time weighting selection Maximum value hold function OVER and UNDER symbol appeared when the reading is over the upper limit and under the lower limit Automatic power off when idle for 10 minutes Bar graph indication for sound level range Calendar and time display Date and time of the unit can be synchronized to that of user's PC Package Includes: 1 x Professional Sound Level Meter 1 x Sponge Ball 1 x USB Cable 1 x Software CD 1 x SD memory card(512M)
Trustpilot
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