HI 9024 • HI 9025 The Most Popular Waterproof Meters on the Market

• Rugged, Waterproof Construction. - The ABS housing provides the instrument with ultimate protection from harmful environments.
• Dual Level Display with Graphic Symbols. - A dual level LCD displays pH or mV and temperature at the same time. Graphic symbols guide the user through the calibration process.
• READY Function. - The meter will only allow calibration when the electrode has stabilized

HI 9024 & HI 9025 are microprocessor-based pH meters in waterproof casings. HI 9024 measures pH and °C, and HI 9025 can also measure ion concentration and ORP in the mV range. Both meters are housed in rugged, waterproof, ABS casings that are built to last. The Auto-Instruction feature guides the user step-by-step through the calibration process with graphic symbols. Unlike conventional microprocessor pH meters that offer only the standard pH buffer solutions of 4.01, 7.01 and 10.01 for calibration, these meters also allow calibration at the important NBS (NIST) buffers of 6.86 and 9.18. Because the electrode requires a certain amount of time to stabilize between buffers, the meter will display the READY symbol only when the electrode has stabilized. The powerful software of the HI9024/HI9025 will allow 1 or 2 point calibration using any of the 5 memorized buffers. This is an important feature in field measurements, since if you end up with access to only one pH buffer, you can always perform the calibration in at least one point. Both meters also feature a user-selectable automatic shut-off to save battery life.HI 9024/HI 9025 are supplied complete in a rugged carrying case containing an HI 1230B plastic, double-junction, combination, gel, pH electrode, an HI 7669/2W temperature probe, 4 x 1.5V AA batteries, and pH 4 & 7 buffers