Portable water quality tester The Yieryi SZT-4 allows you to check the safety of drinking water, pool water, or filtered water in seconds. Using spectral sensor technology, the device simultaneously evaluates nine key parameters, so there is no need for multiple separate meters at home or work.
This device is ideal for homeowners concerned about their family's health, as well as water treatment specialists, laboratories, pool attendants, and agricultural professionals. This water quality tester helps to quickly determine pollution levels. It is recommended to check the water regularly, keep the device in a dry place, and replace the batteries when the corresponding indicator appears on the screen.
Q: What water parameters does the SZT-4 detector measure?
The SZT-4 tests nine parameters: TOC, COD, turbidity, TDS, EC, UV254, salinity, hardness, and temperature. These are all the key characteristics for assessing water safety.
Q: How long do the batteries last?
Operating time depends on usage intensity, but typically AAA batteries are sufficient for hundreds of measurements. The automatic shut-off after 60 seconds significantly saves energy.
Q: Does the device come with batteries and a warranty?
Batteries are not included in the package - they need to be purchased separately (2 or 4 AAA). Warranty terms depend on the seller, so please inquire at the store for more details.
The Yieryi SZT-4 water quality tester is a reliable, compact, and accurate solution for anyone who wants to control the safety of drinking water or pool water at home and work.
Sources: Water Quality Standards | TopSmart store







| Weight | 0.400 kg |
|---|---|
| Dimensions | 21 × 9 × 3 cm |
| Brand | yieryi |
| YIERYI Model | SZT-4 |
| Semi-finished product | No |
| Battery Included | no |
| Origin | Mainland China |
| High- related chemical | None |
| From Smart Device | Yes |
| Display Type | DIGITAL |
| With Backlight Or Not | Yes |
| Model Number | SZT-4 |
| Certification | THIS |
| SZT-4 | 9-In-1 Water Quality Detector |
| Test Items | Toc, Cod, Turbidity, Tds, Ec, Uv254, Salinity, Hardness, Temperature |
| Control Mode | Touch Button |
| Application | Tap Water, Purified Water, Pool Water, Household Water |
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