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ZSPH Soil pH Sensor

ZSPH Soil pH Sensor

ZSPH

The ZSPH is a soil pH sensor that measures soil pH across a 0-14 range at 0.01 pH resolution alongside soil temperature from -40°C to 80°C, with RS485 Modbus, voltage and current output options. It is supplied in the UK by MetSensor UK.

  • Measures soil pH (0-14 range) and soil temperature simultaneously
  • pH accuracy ±0.1 pH at 0.01 pH resolution
  • Multiple output options: 0-2V, 4-20mA, or RS485 Modbus
  • IP65 protection grade
  • Compact probe, 30 x 160 mm with 2 m cable
  • Solar power compatible
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Specifications

pH range0-14 pH
pH resolution0.01 pH
pH accuracy±0.1 pH
Soil temperature range-40 to 80°C
Temperature resolution0.1°C
Temperature accuracy±0.5°C
Voltage output0-2V (output impedance 0Ω)
Current output4-20 mA (load resistance <500Ω)
Digital interfaceRS485, Modbus protocol
Power supply3.6-30V DC
Power consumption6 mA @ 24V DC
Power optionSolar power available
Dimensions30 x 160 mm
Cable length2 m
Protection gradeIP65
Operating temperature-40 to 85°C
Communication interfacesRS485, RS232, WiFi, Bluetooth, LTE

Applications

Frequently asked questions

What does the ZSPH measure?+

Soil pH across a 0-14 range and soil temperature from -40°C to 80°C, from the same probe.

What output options does the ZSPH provide?+

0-2V voltage, 4-20 mA current, or RS485 Modbus digital output.

What is the pH accuracy?+

±0.1 pH at 0.01 pH resolution.

What is the probe size and cable length?+

30 x 160 mm probe with a 2 m cable, IP65 rated.