The SDT A-weighted sound pressure measurement microphone is to be used in combination with the SDT 170 M and SDT 170 MD Multifunction Ultrasonic Detectors. The Ultrawave 170 senses the presence of the dBA sensor and automatically changes to the appropriate setting, scales and units. Measurements can be time-dated and logged inside the memory of the SDT 170 M and SDT 170 MD versions. Refer to the SDT 170 documentation for data logging limits and possibilities.

Monitoring and Data Logging noise levels in the plant. Tie data into central maintenance database.

Microphone type: Electret (condenser microphone)

Input signal range: 35 to 120 dB, A-weighted

Measuring Resolution: 0.1 dB

Accuracy: 1.5 % at 94 dB, meets IEC 651

Operating Temperature: 0 to 60 / 32 to 140

Operating Humidity: 0 % to 90 % R.H. when

temperature is less than 35/95; 0 % to 70 % R.H.

when temperature is above 35/95

Dimensions: 197 x 10 mm / 5.39 x 0.39 inch(without windscreen)

Weight: 60 gram / 0.132 lb (without windscreen)