AWA 5610P Integrating Sound Level Meter IEC 61672 class 2 auto range assessment of ... Functions: Lp, Leq, Lmax, LAE, E, T Time Weighting: F, S Integrating Time: Manual, 10 s, 1 min, 10 min, 15 ... LR03 batteries Operating Voltage: 3V DC Battery Life: Approx. 20 hours Operating Current: 20mA ENVIRONMENT Temperature: 0°C ~ +40°C ... Available: Sound Level Calibrator AWA6221B (Class 2) Noise Meter AWA 5610P