The BESANTEK BST-SL2 Sound Level Meters cover a wide range of applications and performance criteria including noise pollution studies for the quantification of almost any noise,but especially for industrial, environmental, and aircraft noise. Low battery indication.. IEC 651 Type 2 & ANIS S1.4 Type 2.. Technical Specifications: . Measuring Ranges: Lo : 32dB ~ 80dB / Med : 50dB ~ 100dB / Hi : 80dB ~ 130dB.. Resolution: 0.1dB.. Accuracy: +/. 1.5dB (at Reference Range). Reference Sound Level & frequency:. Analog Signal Output: AC 1Vrms for each range.. Detector-Indicator Characteristic:Fast : 125ms, Slow : 1s. Power Source:9V (6F22.006p) x 1 battery. Dimensions:235(L) x 58.4(W) x 34(D)mm.. Weight:Appox:220g (battery included).. Accessories :Instruction manual / Battery / Carry case/ Sponge cover / Heavy-duty case .
Max. & Min. function.
Over & Under range indication.
4-digit LCD display with bar graph.
Frequency weighting characteristic for 2 times per second.
AC signal output.