Description
The HI991300 is engineered for professional users who need accurate, low-range measurements of pH (–2.00 to 16.00), EC (0–3999 µS/cm), TDS (0–2000 ppm), and temperature (–5 to 105°C). Automatic calibration simplifies one- or two-point setup using standard pH buffers, and the pH CAL Check feature provides probe diagnostics to ensure confidence in readings. EC and TDS measurements are automatically compensated for temperature with a selectable β coefficient (0.0–2.4%/°C), and the conversion factor for EC to TDS can be finely adjusted from 0.45 to 1.00 in 0.01 increments, offering flexibility for different water types.
Durability and ease of use are built into the design. The pre-amplified HI12883 probe with internal temperature sensor, PVC body, and 1m DIN quick-connect cable ensures accurate, interference-free readings. The meter features a large waterproof body (IP67), user-selectable automatic shut-off, and long battery life (~600 hours with 3 AAA batteries). Supplied with calibration solutions, electrode cleaning solutions, a beaker, and a rugged thermoformed carrying case, the HI991300 is ready for reliable, high-precision field or lab testing.
