Hanna combo pH & EC meter plus TDS Tester (High Range)

The HI98130 Combo pH meter makes measuring pH quick and easy! This lightweight, waterproof tester offers high accuracy pH, high range EC/TDS (0.00 to 20.00 mS/cm EC/ 0.00 to 10.00 ppt TDS), and temperature measurements in a single handheld unit!

No more switching between meters for your routine measurements!

The HI98130 is a highly accurate, waterproof pH meter that can also measure EC/TDS in the high range (0.00 to 20.00 mS/cm EC/ 0.00 to 10.00 ppt TDS) and temperature. This floating, waterproof combination tester has an easy to read, LCD and an automatic shut-off. In addition, pH and EC/TDS readings are automatically temperatures compensated (ATC) to prevent temperature-related variations in your measurements. For EC/TDS readings, the EC/TDS conversion factor (CONV) is selectable by the user, as well as the temperature compensation coefficient β (BETA).

Replaceable pH Electrode Cartridge

The HI98130 tester features an easy-to-replace pH electrode cartridge with an extendable cloth junction. The extendable cloth junction helps increase electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted. Also, the sturdy, snap-in connector means there are no pins to bend or break!

High Accuracy EC/TDS Graphite Probe

The graphite conductivity probe provides greater accuracy because it cannot be contaminated by salt deposits in the solution. The exposed temperature sensor provides fast response times and guarantees highly accurate temperature compensated readings.

Features at-a-glance

3 sensors in a single meter pH electrode with extractable junction Amperometric EC/TDS sensor Exposed temperature probe for faster EC/TDS readings

Waterproof Designed to float if accidentally dropped in sample

Wide pH Range pH range is from 0.00 to 14.00 pH

Selectable EC to TDS conversion factor Choice of either a 0.45 or 1.0 conversion factor

Automatic Temperature Compensation All readings are compensated for variations in temperatureÉ Temperature displayed in ^oC or ^oF along with pH, EC or TDS reading

Stability indicator The meter displays a clock tag that will disappear when the reading has achieved stability

HOLD button Freezes reading on the display to allow recording of measurement

BEPS (Battery Error Prevention System Meter will automatically shut off if there is not enough power to get an accurate measurement

Battery % level at startup Low Battery Indicator When the level is below 5%, the battery symbol on the LCD blinks to indicate a low battery condition. Auto-off  The auto-off feature automatically shuts off the meter after 8 minutes of non-use to maximize battery life.

Q&A

What is a Hanna combo pH/EC/TDS meter?

It’s a portable handheld tester that combines pH measurement with electrical conductivity (EC), total dissolved solids (TDS), and temperature readings in one instrument. These meters eliminate the need to use separate tools for each parameter when analyzing water quality. 

What parameters does the combo meter measure?

This type of combo meter typically measures pH (acidity or alkalinity), electrical conductivity (EC), total dissolved solids (TDS), and temperature. All readings are automatically temperature compensated to improve accuracy.

What pH range and accuracy does it offer?

Combo meters from Hanna usually measure pH over the full 0.00–14.00 range with a resolution of 0.01 pH and an accuracy around ±0.05 pH.

How do EC and TDS measurements work?

The meter uses a graphite conductivity probe to measure the electrical conductivity of the solution. Electrical conductivity indicates how well the water conducts electricity, which correlates with the concentration of dissolved ions. The meter converts EC into TDS (usually expressed as ppm or ppt) using a selectable conversion factor. 

What are typical ranges for EC and TDS?

Low‑range combo models measure EC up to about 3999 µS/cm and TDS up to about 2000 ppm, while high‑range models can measure up to about 20.00 mS/cm EC and 10.00 ppt (g/L) TDS. 

Is temperature compensation included?

Yes. All pH, EC, and TDS readings are automatically compensated for temperature variations, and the meter displays temperature along with the measured parameter. 

Are these meters durable and easy to use?

Yes. They feature waterproof housings and are designed to float if dropped in water. They also include functions like a stability indicator, HOLD button (to lock readings), and automatic shut‑off to conserve battery life.

How is calibration performed?

Calibration is generally automatic or semi‑automatic: pH is calibrated using standard buffer solutions at one or two points, and EC/TDS calibration is done with reference standards (e.g., 1413 µS/cm for EC or 1382 ppm for TDS), ensuring accurate results over time.