Onset RXW-GP3A-922 HOBOnet Multi-Depth Soil Moisture Sensor (0~0.550 m³/m³; -20°~70°C)

916–924 MHz

Soil Moisture: Volumetric Water Content (VWC)

Measurement Range: In soil: 0 to 0.550 m³/m³ (volumetric water content)

Accuracy: ±0.02 m³/m³ (±2%) in most soils typical from 0° to 50°C (32° to 122°F)

Resolution: 0.001 m³/m³

Temperature:

Measurement Range: -20° to 70°C (-4° to 158°F)

Accuracy: ±0.5°C (0.9°F)

Resolution: 0.1°C (0.18°F)

Depths Measured: 45 cm (18 inches) total; three soil moisture zones, six temperature depths

Wireless Mote:

Operating Temperature Range: Sensor: -20° to 70°C (-4° to 158°F); Mote: -25° to 60°C (-13° to 140°F) with rechargeable batteries, -40° to 70°C (-40° to 158°F) with lithium batteries

Logging Rate: Maximum logging interval: 18 hours

Battery Type/Power Source: Two AA 1.2V rechargeable NiMH batteries, powered by built-in solar panel or two AA 1.5 V non-rechargeable lithium batteries for operating conditions of -40 to 70°C (-40 to 158°F)

Memory: 16 MB

Dimensions:

Sensor length: 53.2 cm (20.9 inches)

Sensor diameter: 3 cm (1.2 inches)

Cable length: 3.5 m (11 ft 6 inches)

Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)

Weight:

Sensor: 351 g (12.4 oz)

Cable: 180 g (6.5 oz)

Mote: 226 g (7.9+7 oz)

What's In The Box?

HOBOnet Multi-Depth Soil Moisture Sensor

Two AA 1.2V rechargeable NiMH batteries

Cable ties

Screws

Manual

Video