RK500-02 PH Sensor


The soil contains many substances such as organic acid, inorganic acid, alkali and salt, due to the different content of various substances, so the soil shows different ph value.Usually the pH in the range of 6.5-7.5 soil is called the neutral soil.RK500-02 pH sensors measure the pH value should be a good solution without professional calibration instruments, complex operation, expensive and difficult to carry, can be for continuous measurement of soil, waste water pH value, suitable for agriculture, sewage treatment plant, chemical industry, printing and dyeing, paper making, pharmacy, electroplating and environmental protection and other fields.


  • Fast response.
  • Excellent stability.
  • Widely used.
  • High precision.
  • High sensitivity.
  • Simple operation.


Item Technical Specification
Range 0-14PH
Resolution 0.01PH
Accuracy ±0.3PH
Supply Mark on the label
Output Signal 4-20mA,0-5V,0-2V,RS485
Response time <10s(in water)
Stability ≤0.02PH/24h
Operating Temperature 0-+80℃
Dimension Probe: Ф28*160mm
Ingress Protection IP67
Storage 10-60℃@20%-90%RH

Istallation & Accessorie

1.When used for online soil measurement, transmitting module and probe is waterproof joint connection(gland) ,can not be separated, probe(with filter and protective cap) and transmitting module buried directly to use,show in figure.

product-Rika Sensors-img-5

2. If need to use in a pool or tank, you can choose submersible mounting bracket, between the probe and transmitting module use BNC connectors(show in figure 2), convenient to probe through the mounting bracket.

product-Rika Sensors-img-5



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