HH2 Moisture Meter - Readout Unit

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Soil moisture meter Zoom
ThetaProbe with HH2 Soil Moisture MeterHH2 Soil Moisture Meter – readout unit

Testimonials

  • Immediate display of water content
  • Reads ML3, SM150T, PR2 (analogue and SDI-12) or WET sensor 
  • Stores up to 1500 time-stamped readings

The HH2 Moisture Meter is a versatile readout unit for use with Delta-T soil moisture sensors. It can be used with the PR2 Profile Probe (both analogue and SDI-12* versions), ML3 ThetaProbe, SM150T and WET Sensors.

The HH2 readout unit offers impressive functionality in a compact, hand-held unit, designed for field use. Readings are displayed on the LCD and can be stored to memory for later download to a PC.

The unit can be operated with one hand, for convenience in the field. Each time-stamped reading includes a unique sample number, a plot identification number (A to Z), and a sensor location number (1 to 255).

Data is transferred to a PC using the RS-232 cable provided with each unit. The HH2Read Windows PC software provides a data import wizard for direct download into Excel or other PC spreadsheet packages, or into irrigation scheduling programs. Alternatively, data can be downloaded in comma-separated ASCII data file (.CSV) format.

*Please note that the HH2 only reads SDI-12 digital data from the PR2 SDI-12 Probe – it is not a general purpose SDI-12 meter. 

Specification

 Input connections  1 water content sensor or 1 WET Sensor
 Control outputs  –
 Readings stored  1,500
 Recording rate  –
 Configuration  By keypad
 Communication options  RS232 / USB [1]
 Sensor excitation  1 switched battery
 Power  1 9V 6LR61 (PP3)alkaline
 Battery life (dependent on usage)  ~ 5,000 readings
Enclosure rating IP54
Temperature range 0 to +40°C
Display 2 line x 16 character
Size 125 x 80 x 45mm
Typical applications Instantaneous reading of soil moisture / profiles/ WET Sensor

 

Sensor compatibility (maximum number of sensors that could be connected [2]
 ML3 ✓ without temp
 SM150T  ✓ without temp
 PR2  ✓
 PR2 SDI-12  –
 WET Sensor  ✓
 EQ3  ✓(mV only)
 Temperature  –
 Tensiometers  –
 Counters or Events  –
 Relay Output  –

 

[1] With USB to RS232 Adapter Cable type USB-RS232

[2] With appropriate expansion cards and power supply arrangements

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