Check the listing for details. Digital Sound Level Meter 1358. Condition: New. Listed at 150.00 USD. This equipment has been designed to meet the measurement requirement of Safety Engineers, Health, Indu- strial Safety offices and Sound Quality control in various environment, which include factory, office, traffic, family, and audio system. Digital Sound Level Meter possesses the following features: 1. It is designed according to the IEC651 TYPE2 & ANSI S1.4 TYPE2 2. Accuracy up to ±1.5 dB rement range: 30~130 dB 4. Weight A or weight C selection 5. Fast & Slow dynamic characteristic modes. 6. AC and DC output for frequency analyzer level recorder, FFT analyzer, graphic recorder etc. power off Measuring range 30~130dBA、35~130dBC Accuracy ± 1.5 dB (under reference conditions) Frequency range 31.5Hz~8KHz Level range 30~80,50~100,60~110,80~130, 30~130dB Frequency weighting A / C Digital Display 4digits Resolution 0.1dB Sample rate 2 times/second Bar graph Display for 0~30dB: one scale unit denotes 2 dB Forother levels: one scale unit denotes 1 dB Over indication OVER / UNDER AC output 0.707Vrms at FS output impedance approx. 600 ohm DC output 10mV/dB, output impendance approx. 100ohm Time weight FAST / SLOW Microphone 1/2 inch electret condenser microphone Max MAX Power supply 9V battery Power life About 30 hours (alkaline battery) Self calibration time 3s Operating condition 0~40℃，10~80%RH Storage condition -10~60℃，10~70%RH Weight 230g (including battery) Dimension 207*70*29mm Color box*1Host*1Instructions*1PP box*1Audio Line*1CD*1USB*1