SL-4001 Digital Sound Level Meter (Type 1) — 35 to 130 dB, Includes Factory Calibration Certificate

Overview: The SL-4001 is a handheld digital sound level / dB meter built for auditorium measurements, vehicle noise testing and general environmental or occupational noise surveys. Frequency weighting networks are designed to meet the IEC 651 type 2 standards and the instrument offers selectable time weighting for FAST and SLOW response. Key features: - Electric condenser microphone for high accuracy and long-term stability - Max. Hold function stores the highest reading on the display - Visual warning indication for overload and under load conditions - Clear readout even under bright ambient light Measurement range and performance: - Range: 3 ranges: 35 to 130 dB (typical 30 to 130 dB), input signal only - Resolution: 0.1 dB - Accuracy: 23 ± 5°C - Frequency response: 31.5 Hz to 8,000 Hz - Dynamic characteristic modes: Time weighting FAST and SLOW Display and environmental limits: - Display: 18 mm LCD, 3 1/2 digits - Operating Temperature: 0° to 50°C - Operating Humidity: Max. 90% RH (0 to 35°C) Outputs and power: - AC output: AC 0.5 Vrms corresponding to each range step - DC output: DC 0.3 to 1.3VDC; 10 mV per dB - Output impedance: 600 Ohm - Power Consumption: Approx. DC 6 mA Physical: - Dimensions: 205 X 80 X 35mm - Weight: 250 Grams Supply scope: - 1 unit of SL-4001 Sound Decibel Meter - Factory Calibrated Certificate - Instruction Manual Applications: Suitable for industrial noise surveys, schools, noise at work / occupational noise assessments, environmental and community noise monitoring, vehicle noise testing, basic noise measurements in industrial plants, road and rail traffic surveys and construction site noise checks.