Product Description

Hanna HI98129 Low Range pH/Conductivity/TDS Tester

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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.

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.
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.

The HI98129 is an easy-to-use and accurate waterproof pH, conductivity, TDS (ppm) tester. It measures pH, EC in the low range (0 to 3999 µS/cm), TDS (0 to 2000 ppm), and temperature. This floating, waterproof combination pocket tester has an easy to read, LCD and an automatic shut-off. All pH, EC, and TDS (ppm) readings are automatically temperature compensated (ATC) to prevent temperature-related variations in your measurements. For EC and TDS (ppm) 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 HI98129 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 and TDS (ppm) Tester 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

Stability indicator

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 startupLow Battery Indicator

When the level is below 5%, the battery symbol on the LCD blinks to indicate a low battery condition.

Auto-off

Auto-off feature automatically shuts off meter after 8 minutes of non-use to maximize battery life

3 sensors in a single tester

pH electrode with extractable junction
Amperometric EC/TDS sensor
Exposed temperature probe for faster EC and TDS (ppm) 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 (ppm) conversion factor

Choice of either a 0.45 or 1.0 conversion factor

Automatic Temperature Compensation

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

Specifications Hanna HI98129 Low Range pH/Conductivity/TDS Tester

Specification Name	Detail
SKU	HI98129
pH Ranges	0.00 to 14.00 pH
pH Resolution	0.01 pH
pH Accuracy (@25°C/77°F)	±0.05 pH
pH Calibration	automatic, one or two-point with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18)
pH Temperature Compensation	automatic
EC Range	0 to 3999 μS/cm
EC Resolution	1 μS/cm
EC Accuracy	±2% F.S.
TDS Range	0 to 2000 mg/L (ppm)
TDS Resolution	1 mg/L (ppm)
TDS Accuracy	±2% F.S.
TDS Calibration	automatic, one point at 1413 μS/cm or 1382 mg/L (ppm)
Temperature Correction Coefficient	automatic with у adjustable from 0.0 to 2.4% / °C
EC to TDS Conversion Factor	0.45 to 1.00
Temperature Range	-5.0 to 60.0°C / 23.0 to 140.0°F
Temperature Resolution	0.1°C / 0.1°F
Temperature Accuracy	±0.5°C /±1°F
pH Electrode	HI73127 (replaceable; included)
Automatic Shut-Off	auto-off after 8 minutes of non-use
Battery Type / Life	1.5V (4) / approx. 100 hours of continuous 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	Each HI98129 is delivered in a cardboard box and is supplied with: HI70004 pH 4.01 buffer solution, 20 mL sachet (1 pc.), HI70007 pH 7.01 buffer solution, 20 mL sachet (1 pc.), HI70300N Storage solution for pH & ORP electrodes, 20 mL sachet (1 pc.), HI70031 1413 μS/cm conductivity standard, 20 mL sachet (1 pc.), HI70032 1382 ppm TDS standard, 20 mL sachet (1 pc.), HI700601 pH & ORP electrode cleaning solution, 20 mL sachet (1 pc.), HI73127 pH electrode, HI73128 Electrode removal tool, 1.5V batteries (4 pcs.), Instrument quality certificate, & Instruction manual.