With its comprehensive functionality and easy operation, the 7 in 1 water quality tester allows for quick switching between 7 different water quality testing modes. The titanium alloy probe ensures precise measurements, while the LCD display makes data reading more intuitive. Powered by 3 long-lasting button batteries and featuring a waterproof design, it’s ideal for various applications such as aquaculture, swimming pools, and drinking water testing.
Specification
| Model |
ATO-W7L |
| TDS |
0-10000ppm、10.1-200ppt |
| EC |
0-10000μS/cm、10.01-19.99ms/cm、20.1-400mc/cm |
| pH |
0.01-14.00pH |
| SALT |
0-10000ppm、10.1-200.0ppt、0.00-25.00% |
| S.G |
1.000-1.222 |
| ORP |
0 ~ ±999mv |
| TEMP |
0.1-60℃、32.0-140℉ |
| Operating Temperature |
0-60℃(32-140℉) |
| Battery |
3*1.5V(LR44) |
| Dimensions |
8*5*24cm |
| Weight |
164g |
Features
- Quick Mode Switching: Easily switch between 7 water quality testing functions with the Mode or Cal button, making it ideal for different water testing applications like aquaculture, swimming pools, and drinking water.
- High Waterproof Rating: With international waterproof and dustproof certification, this tester is resistant to dust and water immersion, providing reliable performance for moisture-prone environments such as aquariums and outdoor water testing.
- High-Precision Titanium Alloy Probe: The titanium alloy probe ensures precise water quality measurements, making it perfect for testing TDS, pH, EC, and other water parameters with accuracy.
- Long-Lasting Button Battery: Powered by 3 × 1.5V LR44 button batteries, this tester combines long-lasting reliability with quick, easy battery replacement for hassle-free use.
- Clear Large LCD Display: The large LCD screen offers clear, easy-to-read data, perfect for quick and accurate readings of TDS, pH, and other water parameters in various water quality testing applications.
Dimension

Details

Application
The 7 in 1 Water Quality Tester offers versatile functionality, making it ideal for reliable water monitoring in various professional and everyday applications. Its comprehensive testing capabilities ensure accurate results across diverse environments, from aquaculture to food safety and beyond.

Tips: How to choose the right water quality tester?
When selecting a water quality tester, clear needs form the foundation of your choice. Begin by identifying which indicators you need to test most frequently and the primary application scenarios, as this will help you focus your search effectively. Next, based on your required measurement accuracy, choose the appropriate type—whether test strips, portable testing pens, or multi-parameter professional instruments—that best fits your needs. Be sure to pay attention to the ease of calibration and the costs associated with sensor maintenance and replacement, as these details determine long-term reliability and overall expenses. ATO industrial automation shop provides comprehensive support, professionally supported testing solutions to help you monitor water quality with confidence. Welcome to visit the ATO platform to learn more and choose the water quality tester that best suits your needs!