Description
The HI991003 meter is engineered for professionals who require accuracy, reliability, and durability in any environment. Its large multi-level LCD displays pH, pH-mV, ORP, and temperature readings simultaneously, with 0.01 pH resolution and ± 0.02 pH accuracy. Automatic two-point calibration with selectable buffer sets, on-screen calibration instructions, and stability indicators ensure precise and repeatable measurements. The IP67 waterproof casingprotects the meter from immersion, rain, and splashes, making it ideal for fieldwork or harsh lab conditions.
The included HI12973 pH/ORP electrode combines a titanium body with a spherical general-purpose glass bulb, pre-amplifier, cloth junction with gel electrolyte, and a quick connect DIN connector for secure, waterproof connection. Its titanium body provides chemical and electrostatic resistance while the matching pin design eliminates ground loops, ensuring highly accurate readings. The Sensor Check™ function evaluates the probe condition and alerts the user to maintenance needs or potential issues during calibration. With automatic temperature compensation, battery level indicators, and HOLD functionality, the HI991003 delivers professional-grade performance in a portable, user-friendly package.







