Instruction manual

HS2 and HS2P

Sensor rod length 20 cm and 12 cm

(NOT interchangeable)

20 cm and 12 cm

(interchangeable)

Accuracy 20 cm rods: ±3%

(EC ≤ 4 dS/m)

12 cm rods: ±3% (EC≤

6.5 dS/m)

±3% VWC

(EC < 2 dS/m)

GPS and geotagging Yes No

GPS zones Yes No

Data storage Yes (1000+ readings) No

Bluetooth Yes No

Date and time Yes (with GPS accuracy

when available)

Display 128 x 64 pixel graphic

LCD

2 line x 16 char

alphanumeric LCD

LCD backlight Yes No

Firmware updates User updateable Factory only

Field carry case Yes No

Portable Yes Yes

Battery life 1000+ readings 2000+ readings

Unlike the HydroSense (I), the 12 cm and 20 cm rods of the

HydroSense II are not interchangeable.

The HydroSense II can display relative water content (RWC) based on wet and

dry references set by the user. The unit also displays water deficit, which

indicates how much water is required (in mm of applied water) to return the

soil to the previously saved wet reference.

Measurements are made by fully inserting the sensor rods into the soil and

pressing . The process takes 2 to 3 seconds. The measurement can be

stored and later downloaded to a computer for display and analysis.

Communications between the computer and HydroSense II are via Bluetooth

(p. 18). The HydroSense II includes a GPS (Global Positioning System)

(p. 19) receiver that enables data to be stored with position information

(geotagged (p. 19)).

The HydroSense II has these default power saving features:

• turns off when idle for a configurable period

• adjustable backlight brightness and on-time

• backlight automatically disabled in bright conditions

• GPS and Bluetooth can each be forced off.

NOTE