The Hanna HI99300 is a rugged, waterproof (IP67) portable meter that measures conductivity, TDS, and temperature in the low range — EC from 0 to 3999 µS/cm and TDS from 0 to 2000 ppm. It fits comfortably in the palm of your hand, and the bottom-mounted probe keeps the cable out of your way.

Key features

• HI763063 two-ring graphite probe resists clogging and is easy to clean
• Automatic Temperature Compensation (ATC) across 0 to 60°C (32 to 140°F) via a built-in temperature sensor
• Single-point automatic calibration with a multi-level LCD that shows reading, temperature, and calibration guides at once
• User-adjustable TDS conversion factor (0.45–1.00) and temperature coefficient (0.0–2.4%/°C)

What's included: HI99300 meter, HI763063 EC/TDS probe, calibration solution, batteries, and instructions.

Applications: reverse osmosis systems, wastewater treatment, HVAC, drinking water, and general water quality monitoring.

Find compatible probes, calibration solutions, and spares in our Hanna Accessories & Parts collection.

Estimated shipping weight: 1.2 lb.