Hanna Instruments Low Range pH/Conductivity/TDS Tester - HI98129

The HI98129 is a compact, waterproof combo tester that measures pH, conductivity (EC), total dissolved solids (TDS in ppm), and temperature — all in one device. Designed for low-range applications (0 to 3999 µS/cm or 0 to 2000 ppm), it's perfect for field use with a durable design and replaceable components that extend the meter’s life for years of reliable performance.

• Measures pH, EC, TDS (ppm), and temperature
• Low-range EC (0 to 3999 µS/cm) and TDS (0 to 2000 ppm)
• Compact, waterproof, and floats if dropped
• Replaceable pH electrode cartridge extends meter lifespan

Looking for a high-range version? Check out the HI98130.

Key Features:

Replaceable pH Electrode
Includes a snap-in pH electrode cartridge with an extendable cloth junction, making it easy to replace without needing to discard the entire meter. The durable design prevents bending or damage to internal connections.

Accurate EC and TDS Measurements
The graphite conductivity probe resists contamination from salt buildup, providing more consistent and accurate readings. A built-in temperature sensor ensures fast, automatic temperature compensation (ATC).

Three Sensors in One
Combines a pH electrode, an EC/TDS amperometric sensor, and a temperature probe — all housed in one compact tester.

Smart, User-Friendly Design:

• Stability Indicator: Icon appears until a stable reading is reached
• Hold Function: Freezes reading on the display for easy recording
• Battery Level Display: Shows battery percentage at startup
• Low Battery Warning: Blinking icon alerts you below 5%
• Auto-Off Feature: Saves battery by shutting off after 8 minutes of inactivity

Additional Benefits:

• Wide pH Range: 0.00 to 14.00 pH
• Selectable EC-to-TDS Conversion: Choose 0.45 or 1.0 factor
• Temperature Readout: Displays in °C or °F along with measurements
• Floating, Waterproof Housing: Built for rugged use in the field