Hanna Instruments (M) Sdn Bhd
11A, Jalan PJS 11/20,
Bandar Sunway,
46150 Petaling Jaya,
Selangor, Malaysia.
+603-5638 9940
+603-5638 9829
Penang Branch Office
Hanna Instruments (M) Sdn Bhd
N0. 303-2-27, Krystal Point,
Jalan Sultan Azlan Shah,
11900 Sungai Nibong,
Penang, Malaysia.
+604-638 4558
+604-645 4558

Sabah Branch Office
Hanna Instruments (M) Sdn Bhd

No. 4-1, 1st Floor,
Plaza Kingfisher,
Jalan Plaza Kingfisher 5,
Inanam, 88450 Kota Kinabalu,
Sabah, East Malaysia.
088-382 941
088-382 942

HI9810-6 Portable pH/EC/TDS Meter

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HI9810-6 Portable pH/EC/TDS Meter Multiparameter Portable Meters
RM 921.00
1 kg
Out of Stock

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manhi_9810.pdf (507.35 KB)
The HI9810-6 is an economical, wateproof, portable meter that measures pH, conductivity (EC), and total dissolved solids (TDS) with a single probe. The meter operation is simplified with dedicated buttons for measurement modes to be be displayed on the LCD and knobs for single point calibration of pH and EC/TDS. The HI9810-6 is most suitable for agricultural, greenhouse and hydroponic applications.

  • 3 in 1 probe with pH, EC/TDS and temperature sensors
  • Amplified pH electrode for immunity to electrical noise including from ballasts and pumps
  • Large LCD with instructions


The HI9810-6 portable meter features a large LCD which displays either pH, EC, TDS or temperature readings along with tutorial instructions. The HI9810-6 is a simplistic pH/EC/TDS meter that is calibrated manually to a single point with the use of two trimmers. pH is calibrated to pH 7.01 while EC/TDS is calibrated to either 1.41 mS/cm (1413 µS/cm) or 1500 ppm. The LCD screen has battery life indicator as well as on-screen tutorial messages.

The supplied HI1285-5 probe is a polypropylene body, amplified pH electrode with a built-in EC/TDS and temperature sensors. The amplifier for the pH electrode prevents interference from humidity and electrical noise from common sources including from motors, ballasts or pumps. The HI9810-6 is a versatile meter best suited for agricultural, greenhouse and hydroponic applications.

HI1285-5 polypropylene body amplified pH electrode with built in EC/TDS and temperature sensors


The HI9810-6 is supplied with a polypropylene body pH/EC/TDS/temperature probe. The pH, EC, TDS, and temperature sensors are housed in a single body that connects to the meter with a DIN connector. This probe is specially engineered with a fiber junction and gel electrolyte to produce a fast response with reduced contamination.

Amplified pH electrode


The pH electrode circuit has a built in amplifier that will reduce the effects of electrical noise on the high impedance pH measurement. Examples of sources of electrical noise include motors, ballasts, and pumps which are common in greenhouses.

Amperometric EC/TDS sensor


The EC/TDS readings are performed by an amperometric sensor. An alternating voltage is applied to the sensor and the amount of current that passes between the two stainless steel pins is dependent upon the amount of salts (fertilizer) present. A greater amount of salt present results in an increase in conductance.

The TDS value in aqueous solutions is directly proportional to the conductivity. The ratio between the two parameters depends on the solution. The HI9810-6 has a fixed conversion factor set to 0.5, meaning that 1 µS/cm is equal to 0.5 ppm of TDS.

Polypropylene body


The polypropylene body houses all the sensors in a single body design and is durable. The probe is gel filled for maintenance free operation. It does not have to be refilled periodically.

  • 3 sensors in a single probe
  • Pre-amplified pH electrode for resistance to electrical noise
  • Gel filled maintenance free pH electrode

Features at-a-glance


  • Water Resistant
  • Automatic Temperature Compensation
    • EC and TDS readings are compensated for variations in temperature
  • Set EC to TDS conversion factor
    • EC to TDS conversion factor set at 0.5 so no need for additional calculations
  • Low Battery Indicator
pH Range 0 to 14 pH
pH Resolution 0.1 pH
pH Accuracy ±0.1 pH
pH Calibration Manual 1 point through offset trimmer


EC Range 0 to 6000 µS/cm
EC Resolution 10 µS/cm
EC Accuracy ±2% F.S.
EC Calibration manual, one-point
TDS Range 0 to 3000 mg/L
TDS Resolution 10 mg/L
TDS Accuracy ±2% F.S.
EC/TDS Temperature Compensation automatic, 0 to 50°C (32 to 122°F) Compensation with a ß of 2%/°C
Temperature Correction Coefficient β = 2% /°C
EC to TDS Conversion Factor 1 µS/cm = 0.5 mg/L

General Meter

EC/TDS Probe HI1285 combination, amplified, double-junction, gel pH electrode with incorporated EC/TDS probe and built-in temperature sensor and 1m (3.3') cable
Battery Type / Life 9V / approximately 150 hours of continuous use
Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing
Dimensions 185 x 82 x 45 mm (7.3 x 3.2 x 1.8")
Weight 520 g (1.1 lb.)
Ordering Information HI9810-6 is supplied with HI1285 multiparameter probe, HI70007 pH 7.01 buffer solution sachet (1), HI70031 1413 µS/cm calibration solution sachet (1), HI70032 1382 ppm sachet (1), 9V battery, and instructions.

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