Portable Water Level Meter for Accurate Depth Measurement in Deep Wells and Boreholes, Essential for Hydrological Surveys and Groundwater Monitoring
HT602B Portable Sound Level Meter 30-130dB A/C Weighting Backlit Screen
HT602B Sound Level Meter 30-130dB with A/C Weighting and LCD Backlight
HT602B Sound Level Meter with Backlit LCD 30dB-130dB A Weighting C Weighting
