Hanna Three Range Portable TDS Meter - HI8734

Hanna HI8734 is a high-performance, three range portable TDS meter designed for accurate measurement of total dissolved solids in water conditioning applications. The instrument covers a broad measurement range from 0.0 mg/L to 19.99 g/L, making it ideal for water treatment, reverse osmosis, demineralization, and industrial or environmental monitoring tasks. Featuring manual temperature compensation, the HI8734 assures consistent results even under varying environmental conditions.

This meter is equipped with three dedicated buttons for easy range selection and alerts users when a reading is out of range. The included HI76301D four-ring conductivity probe with a DIN connector and a 1 m cable ensures precise readings and robust durability. The large, easy-to-read display and handheld form factor make this device suitable for both field and laboratory use.

• Three measurement ranges: 0.0–199.9 mg/L, 0–1999 mg/L, and 0.00–19.99 g/L.
• Measurement accuracy of ±1% full scale (excluding probe error).
• Manual temperature compensation from 0 to 50°C (32 to 122°F) with β = 2%/°C.
• EC to TDS conversion factor fixed at 0.5 (1 µS/cm = 0.5 ppm).
• Supplied with HI76301D four-ring conductivity probe and 1 m cable.
• Battery powered (9V), approximately 100 hours continuous use.
• Compact dimensions: 145 x 80 x 36 mm; lightweight, just 230 g.
• Durable and rugged build for demanding industrial and water treatment environments.

Typical use cases include softening plants, reverse osmosis and water purification systems, drinking water testing, and environmental site assessment. It is also valuable for field laboratories, quality assurance, and service engineers working on-site.

Find more professional water quality instruments, portable meters, and accessories in our TDS Meter and Water Quality Measuring Instruments categories on EnvMart.