SDL 1 is a class II (type 2) data-logging sound level meter, sound pressure level (SPL) meter, noise meter or decibel (dB) meter used for long-term acoustic measurements.
The Windows-compatible software included with the meter allows for the display of a progressive graph of the data collected. The software also enables the user to set alarm limits indicated on the meter via flashing LEDs.
Sound Level Meter SDL 1
Measurement range 30 ... 130 dB Standard IEC 61672-1 (Class II) Accuracy ± 1.4 dB Time weighting Fast and slow Frequency 31.5 Hz ... 8 kHz Storage capacity 129,920 data sets Frequency weighting A and C Measuring rate 1 sec ... 24 hrs Operating conditions 0 ... 40 °C / +32 ... +104 °F , 10 ... 75 % RH Power supply 3.6 V battery System requirements Windows 2000 and up Dimensions Approx. 130 x 25 x 30 mm / 5.12 x 0.98 x 1.18" Weight Approx. 20 g / 0.05 lb