- 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).
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.
Data is transferred to a PC using the RS-232 cable provided with each unit. Please note that most PCs no longer have an RS232 port; for USB connection a USB to RS232 adapter cable is required (see Accessories).
*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.
|Input connections||1 water content sensor or 1 WET Sensor|
|Communication options||RS232 / USB |
|Sensor excitation||1 switched battery|
|Power||9 V 6LR61 (PP3)alkaline|
|Battery life (dependent on usage)||~ 5,000 readings|
|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 |
|ML3||✓ without temp|
|SM150T||✓ without temp|
|Counters or Events||–|
 With USB to RS232 Adapter Cable type USB-RS232
 With appropriate expansion cards and power supply arrangements