Unbranded Surveillance Equipment SL-4001 sku-18460357578

Unbranded Surveillance Equipment, SKU sku-18460357578, UPC 741050653142. The SL-4001 is a handheld digital sound level meter for auditorium measurements, vehicle noise testing, and environmental or occupational noise surveys. The source title lists Type 1, while the frequency weighting networks are described as meeting IEC 651 type 2 standards. Features: - Select FAST or SLOW time weighting. - An electric condenser microphone is specified for accuracy and long-term stability. - Max. Hold keeps the highest reading on the display; visual indicators warn of overload and underload. - The readout is designed to remain clear in bright ambient light. Measurement and display: - The input-signal measurement range has 3 ranges from 35 to 130 dB, with a typical range of 30 to 130 dB, and 0.1 dB resolution. - The listed accuracy condition is 23 ± 5°C. Frequency response is 31.5 Hz to 8,000 Hz. - The display is an 18 mm LCD with 3 1/2 digits. Operating limits and outputs: - Operating temperature is 0° to 50°C; maximum operating humidity is 90% RH from 0 to 35°C. - AC output is 0.5 Vrms per range step. DC output is 0.3 to 1.3VDC at 10 mV per dB, with 600 Ohm output impedance. - Power consumption is approximately DC 6 mA. Dimensions are 205 X 80 X 35mm, and weight is 250 grams. Supplied are 1 SL-4001 meter, a factory calibrated certificate, and an instruction manual. Applications include industrial plants, schools, workplace and community noise assessments, road and rail traffic surveys, and construction site noise checks.