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Customer Support: (800) 842-6629

Fluoride Portable Meter - HI98402

SKU: HI98402 Category

The HI98402 is a rugged, waterproof, portable fluoride meter. This meter offers many features including automatic calibration, on-screen instructions, and automatic temperature compensation. The HI98402 requires the HI4010 epoxy body fluoride half-cell and the HI5313 PEI plastic body reference electrodes in order to operate. They are available as accessories.

  • Five Measurement Ranges
  • Automatic Calibration
  • On-Screen Instructions


The HI98402 is a rugged, portable fluoride meter designed to provide laboratory precision and accuracy under harsh environmental conditions. This meter is ideal for a variety of applications in drinking water treatment, environmental monitoring, and plating baths.The HI98402 offers a variety of features including five distinct measurement ranges, automatic calibration to 1 or 2 points, automatic temperature compensation, and on-screen instructions.

The HI98402 uses a BNC probe input for connecting the fluoride half-cell electrode and a reference input for the reference half-cell electrode. A separate RCA connector is used for a thermistor temperature probe. The temperature probe provides for a high ±0.2 ℃ accuracy measurement for precise temperature compensation.

Features at-a-glance

One or Two-Point Calibration – Automatic calibration can be performed at 1 or 2 points using the 5 pre-programmed buffers (1 mg/L, 2 mg/L, 10 mg/L, 100 mg/L, and 1000 mg/L).

On-Screen Instructions – Clear and easy to use on-screen instructions take you through all of the steps in performing a calibration and taking measurements.

Fluoride and Reference Half-Cell Electrodes – The HI98402 requires two half-cell electrodes to measure fluoride. The HI4010 is a fluoride half-cell comprising an epoxy body and a lanthanum fluoride crystal sensing membrane. The HI5313 is a reference half-cell featuring a cone style junction that produces a highly stable reference potential and consistent flow rates of electrolyte into solution. Together with the meter and temperature probe, a complete and accurate measurement system is formed.

Automatic Temperature Compensation – The HI98402 offers automatic temperature compensation of fluoride measurements over the range of -5.0 to 55.0℃.

Additional information

Weight 1 kg


Temperature Accuracy

±0.2°C; ±0.4°F (excluding probe error)

Temperature Range

-20.0 to 120.0°C (-4.0 to 248.0°F)


SKU HI98402
Name Fluoride Portable Meter – HI98402
Temperature Range -20.0 to 120.0°C (-4.0 to 248.0°F)
Temperature Resolution 0.1°C (0.1°F)
Temperature Accuracy ±0.2°C; ±0.4°F (excluding probe error)
Temperature Compensation automatic, -5 to 55°C (with temperature probe)
Required Probes HI4010 fluoride electrode with BNC connector and 1 m (3.3’) cable (not included); HI5313 reference electrode with 1 m (3.3’) cable (not included)
HI7662 stainless steel temperature probe with 1 m (3.3’) cable (not included)
Battery Type/Life 1.5V AAA (3) / approximately 200 hours of continuous use
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions 185 x 72 x 36 mm (7.3 x 2.8 x 1.4”)
Weight 300 g (10.6 oz.)

Ordering Info

HI98402 is supplied with batteries, rugged carrying case and instructions.


Fluoride Portable Meter – HI98402