Winet WT500-22 pH sensor

Winet WT500-22 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”.
WT500-22 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.

Main features:


  • On-line and real-time monitoring
  • Low impedance sensitive glass film
  • Good repeatibility and thermal stability
  • Internal signal isolation, strong anti-interference
  • Widely power supply
  • Low drift, small size, fast response
  • Easy installation
  • Stable performance and long service life


Technical specifications:


  • Measurement principle: electrochemistry
  • Range: 0-14pH
  • Supply: 7-30V CC (power consumption < 0,2W)
  • Accuracy: ± 0,05pH
  • Resolution: 0,01pH
  • Response time: < 10s (soil moistureo > 30%)
  • Stability: ≤ 0,01pH/24h
  • Output signal: 4-20mA & RS485 at the same time
  • Calibration cycle: every 6 months
  • Operating environment: 0 to +80°C (< 0,6MPa)
  • Cable length: 5m (default), customizable
  • Probe material: 304 stainless steel
  • Ingress protection: IP68
  • Storage: 10-60°C/20-90% RH