RaeSung AZ86031 Water Quality Meter Dissolved Oxygen Tester pH Meter pH Conductivity Salinity Temperature Meter

The meter is worth the money. Small, lightweight and uses AAA batteries. Screen clear and easy to follow. But Long cord probes make it difficult to handle. Not receiving calibration solutions with the package due to shipment policy.

Good enough for what you need and then some. About a third of the cost of some professional water quality devices and just as accurate. Durability is good but not great. Take good care of it and it should last for years. Had mine about a year now. I used to test surface water and ground quality for permitting and would gladly use this device. I now just use for my backyard pond. Cord length same as most professional water quality devices for testing surface and groundwater. I never had professional devices of this type come with calibration fluids. Always bought separately from another company. If you get this device it is because you want accuracy and durability and not much else. This is what you are paying for. Update: Still have the device December 2023) and it works fine.