HH2 Soil Moisture Meter Delta T Devices

Overview

·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

 19 V 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

 –