国产在线无码视频一区_免费看片A级毛片免费看_国产午夜福利精品一区二区三区_99久久人妻精品免费一区

Designed for water quality experts, the Hach HQ40d portable meter is an advanced meter that takes the guesswork out of measurements. HQd meters connect with smart probes that automatically recognize the testing parameter, calibration history, and method settings to minimize errors and setup time. The durable portable meter and optional rugged probes are designed to withstand years of rugged portable and field use. HQd meters feature a simple user interface that does not require manuals or training to operate. This package features rugged optical dissolved oxygen (LDO), pH, and conductivity/TDS/salinity probes for years of worry-free use around the plant or in the field.

• Portable meter measures critical water quality parameters - without the need for multiple instruments
• Intuitive user interface for simple operation and accurate results
• Trust your measurements - InliCAL? smart probes store all calibrations in the probe
• Designed for demanding conditions
• Convenient kit includes everything you need to start testing