Sound Meter and Calibrator Kit
.1 dB, Display 4 Digit Backlit LCD, 4,000 Counts, Fast 125ms, Slow 1ms Response Time, Microphone Type Electret Condenser, Microphone Size 1/2 in, Standards ANSI S1.4 Type 2, CE, Meets IEC 61672-1 type 2, OSHA, RoHS, Criteria Levels 35 to 100dB, 65 to 130dB, Operating Temp.