Measuring Rang : 30-130dBA Accuracy +-1.5dBFrequency response :31.5HZ-8KHZFrequency weighting : A weightResolution: 0.1dB Working temperature and humidity：0-40 10-80%RHStorage temperature and humidity ：-10-60 ，0~90%RHSpecification: Package Weight One Package Weight 0.23kgs / 0.50lb One Package Size 24cm * 13cm * 5cm / 9.45inch * 5.12inch * 1.97inch Qty per Carton 60 Carton Weight 14.50kgs / 31.97lb Carton Size 48cm * 41cm * 50cm / 18.9inch * 16.14inch * 19.69inch Loading Container 20GP: 271 cartons * 60 pcs = 16260 pcs 40HQ: 629 cartons * 60 pcs = 37740 pcs