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OHAUS TDS

OHAUS, founded in 1907 in the United States, is a manufacturer of precision weighing and measurement instruments. The OHAUS TDS (Total Dissolved Solids) product line comprises handheld, digital meters designed for field and laboratory measurement of dissolved solids in water. These meters are available through 3G Electric, a Singapore-headquartered industrial-equipment distributor with global shipping capabilities. The OHAUS TDS meters offered by 3G Electric include the ST10T and ST20T series, which are pocket-sized devices with digital displays. The ST10T series provides TDS measurement ranges of 0 mg/L – 100 mg/L (model ST10T-A) and 0 mg/L – 1,000 mg/L (model ST10T-B), with a TDS accuracy of ±2.5% FS. The ST20T series offers the same measurement ranges (ST20T-A: 0 mg/L – 100 mg/L; ST20T-B: 0 mg/L – 1,000 mg/L) but with improved TDS accuracy of ±1.5% FS and automatic temperature compensation with a resolution of 1°C and accuracy of ±0.5°C. All models operate within a temperature range of 50°F – 104°F (10°C – 40°C). These meters are built for portability and ease of use, featuring a digital readout and simple calibration procedures. They are suitable for applications such as water quality testing, hydroponics, aquaculture, and industrial process monitoring where quick, reliable TDS readings are required. 3G Electric supports the OHAUS TDS line by maintaining stock of multiple SKUs, providing datasheets for technical reference, and offering logistics support for international orders. The meters are designed to meet basic field-testing needs without requiring complex setup, making them a practical choice for plant engineers, maintenance managers, and procurement specialists who need a straightforward tool for verifying water quality parameters. The ST20T series' automatic temperature compensation reduces measurement variability in fluctuating environments, while the ST10T series offers a cost-effective option for applications where higher accuracy is not critical. Both series use standard button-cell batteries and have a compact form factor that fits in a pocket or tool kit. 3G Electric's catalog includes these meters as part of a broader range of measurement and testing equipment, ensuring compatibility with other industrial monitoring tools.

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About OHAUS TDS

OHAUS, founded in 1907 in the United States, is a manufacturer of precision weighing and measurement instruments. The OHAUS TDS (Total Dissolved Solids) product line comprises handheld, digital meters designed for field and laboratory measurement of dissolved solids in water. These meters are available through 3G Electric, a Singapore-headquartered industrial-equipment distributor with global shipping capabilities. The OHAUS TDS meters offered by 3G Electric include the ST10T and ST20T series, which are pocket-sized devices with digital displays. The ST10T series provides TDS measurement ranges of 0 mg/L – 100 mg/L (model ST10T-A) and 0 mg/L – 1,000 mg/L (model ST10T-B), with a TDS accuracy of ±2.5% FS. The ST20T series offers the same measurement ranges (ST20T-A: 0 mg/L – 100 mg/L; ST20T-B: 0 mg/L – 1,000 mg/L) but with improved TDS accuracy of ±1.5% FS and automatic temperature compensation with a resolution of 1°C and accuracy of ±0.5°C. All models operate within a temperature range of 50°F – 104°F (10°C – 40°C). These meters are built for portability and ease of use, featuring a digital readout and simple calibration procedures. They are suitable for applications such as water quality testing, hydroponics, aquaculture, and industrial process monitoring where quick, reliable TDS readings are required. 3G Electric supports the OHAUS TDS line by maintaining stock of multiple SKUs, providing datasheets for technical reference, and offering logistics support for international orders. The meters are designed to meet basic field-testing needs without requiring complex setup, making them a practical choice for plant engineers, maintenance managers, and procurement specialists who need a straightforward tool for verifying water quality parameters. The ST20T series' automatic temperature compensation reduces measurement variability in fluctuating environments, while the ST10T series offers a cost-effective option for applications where higher accuracy is not critical. Both series use standard button-cell batteries and have a compact form factor that fits in a pocket or tool kit. 3G Electric's catalog includes these meters as part of a broader range of measurement and testing equipment, ensuring compatibility with other industrial monitoring tools.

Common Applications

  • Water quality testing — OHAUS ST10T-A for low-range TDS measurement in drinking water
  • Hydroponics — OHAUS ST20T-B for monitoring nutrient solution concentration in recirculating systems
  • Aquaculture — OHAUS ST10T-B for checking TDS levels in fish tank water
  • Industrial process monitoring — OHAUS ST20T-A for verifying rinse water purity in manufacturing
  • Field sampling — OHAUS ST20T-B for portable TDS measurement in environmental surveys

Frequently asked questions

Common questions about OHAUS TDS from 3G Electric.

What is the difference between the OHAUS ST10T and ST20T TDS meters?

The primary difference is accuracy and temperature compensation. The ST10T series (models ST10T-A and ST10T-B) has a TDS accuracy of ±2.5% FS and does not include automatic temperature compensation. The ST20T series (models ST20T-A and ST20T-B) offers improved TDS accuracy of ±1.5% FS and includes automatic temperature compensation with a resolution of 1°C and accuracy of ±0.5°C. Both series are available in two measurement ranges: 0 mg/L – 100 mg/L and 0 mg/L – 1,000 mg/L.

What is the operating temperature range for OHAUS TDS meters?

All OHAUS TDS meters in the ST10T and ST20T series operate within a temperature range of 50°F to 104°F (10°C to 40°C). This range covers typical indoor and outdoor field conditions for water quality testing. The ST20T series additionally provides automatic temperature compensation within this range to maintain accuracy.

How do I calibrate an OHAUS TDS meter?

OHAUS TDS meters are factory-calibrated and typically require only a simple one-point calibration using a standard TDS solution. The specific calibration procedure is outlined in the product datasheet provided by 3G Electric. For the ST20T series, automatic temperature compensation helps maintain calibration stability across varying temperatures. Regular calibration is recommended based on usage frequency and application requirements.

What is the battery life of OHAUS TDS meters?

OHAUS TDS meters use standard button-cell batteries. Battery life depends on usage frequency and conditions, but typical operation under normal field use can last several months. The meters feature an auto-off function to conserve battery when not in use. Specific battery type and replacement instructions are included in the product documentation available from 3G Electric.

Can OHAUS TDS meters be used for saltwater or high-conductivity samples?

OHAUS TDS meters are designed for freshwater applications with TDS levels up to 1,000 mg/L. For saltwater or high-conductivity samples exceeding this range, a different instrument with a higher measurement range would be required. The meters are suitable for testing drinking water, hydroponic nutrient solutions, and industrial process water within the specified range.

Does 3G Electric supply OHAUS TDS products?

Yes — 3G Electric (S) Pte. Ltd. supplies OHAUS TDS products. We stock the OHAUS TDS catalog and supply genuine factory-original products with full manufacturer warranty and technical support.