Product Description

Lutron SL-4010 Sound Level Meter

Large LCD display, easy to read.
The “A” frequency weighted network characteristics are designed to comply with IEC 61672 class 2.
The “Fast” time weighting characteristic mode.
Build in adj. VR is available for easy calibration.
Condenser microphone for high accuracy & long term stability.
Hold function to freeze display value.
Warning indicators for over and under reach.
LCD display for low power consumption & clear reading even in bright ambient light conditions.
Using durable and long-lasting components, including a strong and lightweight ABS plastic casing.
Small and lightweight design allows one-handed operation.
Low battery indicator.
High quality at economical cost.

Display: 18 mm ( 0.7 ” ) LCD ( Liquid Crystal Display ), 3 1/2 digits.
Measuring Range: 35 to 130 dB, 3 ranges: 1 – 35 to 80 dB range, 2 – 50 to 100 dB range, 3 – 80 to 130 dB range, Each range with warning indicators for over & under load
Resolution: 0.1 dB.
Measurement Frequency: 31.5 Hz to 8,000 Hz.
Frequency-weighted Network: Characteristics of the “A” frequency-weighted network. “Weighted” characteristics are simulated in response to “Human Ear List”.
Accuracy:
* Characteristics of the “A” frequency weighted network comply with IEC 61672 class 2.
* Under 94 dB input signal, the accuracy is:
31.5 Hz – ± 3.5 dB, 63 Hz – ± 2.5 dB, 125 Hz – ± 2.0 dB
250 Hz – ±1.9 dB, 500 Hz – ±1.9 dB, 1 kHz – ±1.4 dB
2 kHz – ± 2.6 dB, 4 kHz – ± 3.6 dB, 8 kHz – ± 5.6 dB
Calibrator: B & K (Bruel & kjaer), multifunction acoustic calibrator, model: 4226.
Microphone type: Electric condenser microphone.
Microphone size: standard 1/2 inch size.
VR Calibration: Build in external calibration VR, easily calibrated at 94 dB level by screwdriver.
Data Hold Hold function to freeze display value.
Operating Temperature: 0℃ to 50℃(32℉ to 122℉).
Operating Humidity: Less than 80% RH
Power Supply: 006P DC 9V Battery (heavy duty type).
Power Consumption: Approx. DC 6mA.
Dimensions: 225 x 70 x 28 mm (8.9 x 2.8 x 1.1 inches).
Weight: 250 g/0.55 LB (including battery).