Compact and waterproof pH meter HI991001

This compact and waterproof portable pH meter is designed for pH and temperature measurements in manufacturing protocols and environmental monitoring. The preamplified HI12963 titanium‑alloy electrode with integrated temperature sensor ensures stable readings even in electrically noisy environments, while offering excellent mechanical resistance for on‑site field use.

Technical specifications

• pH range: −2.00 to 16.00 pH / −2.0 to 16.0 pH (instrument), HI12963 electrode usable from 0 to 13 pH.
• Temperature range: −5.0 to 105.0 °C (instrument), HI12963 electrode limited to 0 to 80 °C.
• pH mV range: ±825 mV.
• Resolution: 0.01 pH or 0.1 pH (selectable), 1 mV, 0.1 °C / 0.1 °F.
• Accuracy: ±0.02 pH / ±0.1 pH; ±1 mV; ±0.5 °C up to 60 °C, then ±1.0 °C above.
• Temperature compensation: automatic from −5.0 to 105.0 °C.
• pH calibration: automatic at 1 or 2 points with two stored buffer sets: standard (4.01, 7.01, 10.01) or NIST (4.01, 6.86, 9.18).
• Display: large dual‑line LCD, simultaneous pH and temperature display, stability indicator, battery charge percentage, electrode condition.
• Housing: IP67 waterproof, 154 × 63 × 30 mm, 196 g with batteries.
• Power: 3 × AAA 1.5 V batteries, approx. 1400 hours continuous use, auto‑off after 8 min, 60 min or disabled.
• Included probe: HI12963 combined pH/temperature electrode, titanium‑alloy body, preamplified, integrated temperature sensor, Quick DIN connector, 1 m cable.
• Operating environment: 0 to 50 °C; relative humidity up to 100%.
• Case contents: pH meter, HI12963 electrode, pH 4.01 and 7.01 buffer sachets, electrode cleaning solution (2 sachets), 100 mL beaker, batteries, quality certificates, user manual.

Technical FAQ

• Is this pH meter suitable for professional brewing?
  Yes, it is designed for manufacturing protocols and environmental testing, with a robust preamplified titanium electrode ideal for on‑site brewery measurements (brewing water, CIP, effluents, process pH checks).
• Which solutions are included?
  The kit includes pH 4.01 and 7.01 buffer sachets, electrode cleaning solution (2 × 20 mL), a 100 mL beaker and batteries, in addition to the HI12963 electrode.
• What if the electrode condition indicator is low?
  With a single bar or a blinking bar, clean the electrode, rehydrate it, then recalibrate. If the condition remains poor, the HI12963 probe must be replaced.