SOUND LEVEL METER Tenmars Electronics Co., Ltd. is one of the leading OEM/ ODM manufacturer ( ISO-9001, CE, UL ) of testing instruments in TAIWAN. We are constantly developing new products bring benefits to customers. Tenmars motivated and dynamic R& D team has experience more than 20 years, but we still cooperate with American high technical companies to upgrade the technology and equipments. DISPLAY 3 1/ 2 digits LCD display with maximum reading of 2000. Baclit LCD FEATURES Test ranges: 30~ 130dB. LO: 30~ 80dB MED: 50~ 100dB HI: 80~ 130dB Accuracy : + / - 1.5dB( ref 94dB @ 1KHz)  Resolution : 0.1dB Microphone: 1/ 2 inch Electret condenser microphone Frequency Weighting : A, C Time Weighting : FAST, SLOW Auto Ranging , Auto Power Off, Data hold, Max/ Min Dynamic Range : 50dB Frequency Range : 30Hz~ 8KHz DIMENSION Size : 200x55x38mm Weight ( including battery) : 290g