Hanna Instruments DiST® 2 HI98302 Waterproof High-Range TDS Meter | 0.00–10.00 ppt (g/L) | 0.01 ppt Resolution | Automatic Temperature Compensation

The Hanna Instruments HI98302 DiST® 2 is a compact, waterproof, high-range digital TDS meter designed for quick and reliable measurement of Total Dissolved Solids (TDS) in water. It measures TDS from 0.00 to 10.00 ppt (g/L) with 0.01 ppt resolution, making it particularly suitable for applications where a higher TDS measurement range is required.

The HI98302 features a graphite sensor, automatic temperature compensation (ATC), a built-in temperature sensor and a large multi-level LCD that displays TDS and temperature readings simultaneously. Its slim, pocket-sized design and simple two-button operation make it convenient for both laboratory and field testing.

Key Features

• High-range TDS measurement: 0.00 to 10.00 ppt (g/L)
• High resolution: 0.01 ppt (g/L)
• Accuracy: ±2% F.S.
• Automatic Temperature Compensation (ATC) from 0 to 50°C
• Graphite electrode reduces polarization effects and resists oxidation
• Automatic one-point calibration at 6.44 ppt
• Large multi-level LCD displays TDS, temperature, battery status and stability indicator
• Exposed temperature sensor provides fast temperature response
• Waterproof casing designed to float if accidentally dropped in water
• Two-button operation for simple testing and calibration
• Automatic shut-off selectable at 8 minutes, 60 minutes or disabled
• Low-battery indicator and Battery Error Prevention System (BEPS)
• Slim and ergonomic design for comfortable handling and portability

Technical Specifications

Specifications are based on Hanna Instruments' current product information.

Applications

The HI98302 is suitable for:

• Drinking and process water testing
• RO and water treatment systems
• Wastewater monitoring
• Environmental water testing
• Laboratories and educational institutions
• Agriculture and irrigation water
• Aquaculture
• Hydroponics
• Aquariums
• Cooling-water monitoring
• General industrial water-quality testing

Graphite Sensor Technology

The HI98302 uses an amperometric graphite electrode. Graphite is resistant to oxidation, helping maintain consistent electrode characteristics and improve measurement repeatability. The design also helps reduce polarization effects commonly associated with traditional metal electrodes.

Automatic Temperature Compensation

Temperature can influence TDS measurements. The HI98302 automatically compensates for temperature changes between 0 and 50°C, helping provide more consistent readings without requiring manual temperature correction. The temperature can also be displayed in either °C or °F.

Calibration

Calibration is simple and performed automatically at a single point using a 6.44 ppt calibration solution. Once the meter recognizes the calibration standard and the reading becomes stable, the calibration value is automatically accepted and stored.

Package Contents

The Hanna HI98302 is supplied with:

• HI98302 DiST® 2 TDS Tester
• Protective cap
• 6.44 ppt calibration solution sachets – 4
• CR2032 battery
• Instrument quality certificate
• Instruction manual

Why Choose Hanna HI98302?

The HI98302 DiST® 2 is an excellent choice when a standard pocket TDS meter does not provide enough measurement range. With its 0.00–10.00 ppt range, 0.01 ppt resolution, graphite sensor, ATC and waterproof construction, it provides a practical solution for routine high-range TDS measurements in laboratories, water treatment facilities and field applications.