The low range Combo® pH, EC, TDS (ppm) and temperature meter is one of Hanna’s most popular meters. The waterproof design, simple operation, and replaceable electrode mean that you can rely on this meter for years. You can replace the pH electrode for just $59.
The HI98129 is designed for low range use (0 to 3999 µS/cm or 0-2000 ppm). Choose the HI98130 for the high range model. I’ve owned 2 of these meters for 11 years. I’ve replaced each electrode once. I put these through heavy use and they never fail. Always reliable readings. -Jason Curtis (Verified Buyer)
Pricing includes the HI98129 Combo Tester, HI72127 pH electrode, electrode removal tool, batteries, and free shipping.
- Compact & waterproof design fits right in your pocket so you can take it anywhere.
- Replaceable pH electrode extends the life of your tester for years.
- Great for hydroponics, aquariums, pools, & ponds.
|pH Range||0.00 to 14.00 pH|
|pH Resolution||0.01 pH|
|pH Accuracy (@25ºC/77ºF)||±0.05 pH|
|Conductivity Range||0 to 3999 µS/cm|
|Conductivity Resolution||1 µS/cm|
|Conductivity Accuracy (@25ºC/77ºF)||±2% F.S.|
|TDS Range||0 to 2000 ppm (mg/L)|
|TDS Resolution||1 ppm (mg/L)|
|TDS Accuracy||±2% F.S.|
|Temperature Range||0.0 to 60.0°C / 32.0 to 140.0°F|
|Temperature Resolution||0.1°C / 0.1°F|
|Temperature Accuracy (@25ºC/77ºF)||±0.5°C /±1°F|
|EC/TDS Calibration||automatic, one-point at: 1413 µS/cm, 1382 ppm (mg/L)|
|pH Calibration||automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)|
|Temperature Compensation||pH: automatic; EC/TDS: automatic with β adjustable from 0.0 to 2.4% / °C|
|TDS Conversion Factor||0.45 to 1.00|
|pH Electrode||HI73127 (replaceable; included)|
|Battery Type/Life||1.5V (4) / approx. 100 hours of continuous use, auto-off after 8 minutes of non-use|
|Environment||0 to 50°C (32 to 122°F); RH max 100%|
|Dimensions||163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’)|
|Weight||100 g (3.5 oz.)|
|Ordering Information||HI98129 is supplied with HI73127 pH electrode and HI73128 electrode removal tool, batteries (4 x 1.5V) and instructions.|