Hanna HI 9811-51 External Probe pH, EC, TDS, Temperature Meter

Hanna HI 9811-51 External Probe pH / EC / TDS / Temperature Meter

Hanna HI 9811-51 is a precise measuring device capable of measuring pH, conductivity (EC), TDS, and temperature with a single probe and has a wide measurement range.
It is specially designed for aquariums, fish farming, and seawater applications.

• The HI 9811-51 model offers a wider range of measurement compared to the similar HI 9812-51 device.

• pH, conductivity (EC and TDS), and temperature measurements are accurately performed using a single probe.

• In addition to aquarium and fish farming, it can also be used in greenhouse irrigation, agriculture, and other liquid controls.

• Measurements are performed in "pH units" for pH, "µS/cm" for EC, "ppm" for TDS, and "°C" for temperature.

• Measurements are easily readable with the wide LCD screen, and the device is easy to use.

• Frequent calibration is recommended for high accuracy. Calibration is important after electrode replacement, immediately after measurement with harsh chemical liquids, and in precise measurements.

• pH and conductivity calibration are performed with dial mechanisms under the device.

• Automatic temperature compensation (ATC) feature is available.

• The probe protection cap protects the probe when not in use; it should contain potassium chloride protection liquid.

• The device package includes; HI9811-51 device, HI 1285-51 probe, pH 7 solution, 1382 ppm PPM solution, 1413 µS/cm EC solution, 2 electrode cleaning solutions, manufacturer test certificate, English user manual, 9V battery, plastic measuring cup, and a hard plastic carrying case.

Technical Specifications

• pH Measurement Range: 0.0 – 14.0 pH

• pH Accuracy: ± 0.1 pH

• pH Resolution: 0.1 pH

• pH Calibration: Single point

• TDS Measurement Range: 0 – 3000 ppm

• TDS Accuracy: ± 2 % f.s ppm

• TDS Resolution: 10 ppm

• TDS Calibration: Single point

• Temperature Measurement Range: 0 – 70 °C

• Temperature Accuracy: ± 1 °C

• Temperature Resolution: 1 °C

• Temperature Compensation: 0 °C – 50 °C

• EC Measurement Range: 0 – 6000 µS/cm

• EC Accuracy: ± 2 % f.s µS/cm

• EC Resolution: 10 µS/cm

• Display: Wide LCD

• Dimensions: 145 x 80 x 36 mm

• Weight: 230 g

• Power Supply: 1 piece 9V battery

• Electrode: HI 1285-51, polypropylene body, 1 m cable, integrated temperature sensor