Noise Level Meter for Classroom/Class 1 Sound Level Meter/Professional Decibel Meter/Industrial Decibel Meter for Classroom Auditoriums, Vehicle Noise Testing | Model: SL-4023SD

Noise Level Meter for Classroom/Class 1 Sound Level Meter/Professional Decibel Meter/Industrial Decibel Meter for Classroom Auditoriums, Vehicle Noise Testing | Model: SL-4023SD

• Measuring Range: 30 to 130 dB; Resolution: 0.1 dB; Accuracy: 23 ± 5°C
• Display: LCD size : 52 mm x 38 mm LCD with green backlight ( ON/OFF ); Frequency: 31.5 to 8,000 Hz; Microphone type: Electric condenser microphone
• Operating Temperature: 0°C to 50°C; Operating Humidity: Less than 85% R.H; Data hold: To freeze the measurement value; Sampling Time: Approx1 second
• Range selector: 30 to 130 dB; Data Output: RS 232/USB PC computer interface; Memory Card: SD memory card1 GB to 16 GB
• Power Supply: DC 1.5 V battery; Accessories: Meter, Instruction manual ( UM3, AA ) x 6 PCs, or equivalent, ADC 9V adapter input( AC/DC power adapter is optional ); Power Current: Normal operation ( w/o SD card save data and LCD Backlight is OFF) : ApproxDC 12 mA