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💧 Measure with confidence, wherever your water quality journey takes you.
The Apera Instruments AI213 TDS20 Pocket Tester Kit delivers precise total dissolved solids measurements with ±1% accuracy and a wide 0-10,000 ppm range. Featuring IP67 waterproofing, 2-point auto calibration, and automatic temperature compensation (0-50°C), it’s engineered for professionals in water quality monitoring across industries. The kit comes complete with calibration solutions, batteries, and a portable case, offering up to 1000 hours of battery life for uninterrupted field use.






| ASIN | B01ENFOIN2 |
| Batteries | 4 AAA batteries required. (included) |
| Best Sellers Rank | #99,439 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Conductivity Meters & Accessories |
| Date First Available | April 22, 2016 |
| Item Weight | 3.9 ounces |
| Item model number | AI213 |
| Manufacturer | Apera Instruments |
| Product Dimensions | 7.72 x 3.39 x 1.3 inches |
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