Phone: 253-927-6186

The HD2305.0 is a portable ph meter with a large LCD display.
It measures the pH and the redox potential (ORP) in mV. It measures the temperature using Pt100 or Pt1000 immersion, penetration or contact probes.
The electrode calibration can be carried out on one, two or three points at 4.01pH, 6.86pH and 9.18pH.
The temperature probes are fitted with an automatic detection module, with the factory calibration settings already being memorized inside.

HD2305 pH meter

Model  Description 
HD2305  HD2305 pH Meter Thermometer

The Max, Min and Avg function calculate the maximum, minimum or average values.
Other functions include: the relative measurement REL, the Auto-HOLD function, and the automatic
turning off that can also be disabled.

HD 2305 specifications
Measurement of pH by Instrument
Measurement range -2.000 - +19.999pH
Resolution 0.01
Accuracy ±0.01pH ±1 digit
Input impedance  >1012Ω 
Calibration error  @25°C  - Offset - >20mV
Slope<50mV/pH or Slope>63mV/pH
Sensitivity < 85% or Sensitivity > 106.5% 
Measurement of mV by Instrument 
Measurement range  -1999.9 - +1,999.9mV 
Resolution 0.1mV
Accuracy  ±0.1mV 
Drift after 1 year  0.5mV/year 
Measurement of temperature by Instrument 
Pt100 measurement range  -200 - +650°C 
Pt1000 measurement range   -200 - +650°C 
Resolution  0.1°C 
Accuracy   ±0.1°C 
Drift after 1 year   0.1°C/year 

HD 2305.0 pHmeter-Thermometer which measures pH, mV and temperature.
Storage of maximum, minimum, average value. Functions: REL, HOLD and auto power off which can be
disabled, IP 67 protection degree. Supplied with carrying case, instruction manual, 3 batteries.
Electrodes, calibrating solutions and TP87 and TP47… series temperature probes with SICRAM module
have to be ordered separately.

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Hotek Technologies, Inc
tel: 253-927-6186