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Leaf Wetness Sensor

R5,467.63

The HOBOnet Leaf Wetness Sensor provides accurate leaf wetness data for a variety of growing and research applications. The sensor is ready to use and does not require any painting or coating. It uses..

  • Brands Onset
  • Product Code: RXW-LWA-xxx
  • Availability: 7-10 Days

Tags: Leaf, Wetness, Sensor

Leaf Wetness Sensor

The HOBOnet Leaf Wetness Sensor provides accurate leaf wetness data for a variety of growing and research applications. The sensor is ready to use and does not require any painting or coating. It uses a capacitive grid that is less sensitive to surface residues than resistive grid-based sensors, and comes preconditioned for long-term stability and consistent measurements between sensors. HOBOnet Wireless Sensors communicate data directly to the HOBO RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.

Highlighted Features

Sensor Features

  • Does not require any painting or coating
  • Preconditioned for consistent measurements
  • 3-meter cable and mounting bracket included

Wireless Features

  • 900 MHz wireless mesh self-healing technology
  • 450 to 600 meter (1,500 to 2,000 feet) wireless range and up to five hops
  • Up to 50 wireless sensors per RX3000
  • Simple button-push to join the HOBOnet wireless network
  • Onboard memory to ensure no data loss
  • Powered by rechargeable AA batteries and built-in solar panel

In what environment does this sensor operate?

This sensor operates in an outdoor environment.

What measurements does this sensor support?

The RXW-LWA-xxx sensor supports the following measurement: Leaf Wetness

 

For more information visit Onset.

Sensor
Interchangeability between sensors (over the range 10-90%) ±10% wet
Repeatability ±5%; see Note 1
Sensor Measurement Range 0 (dry) to 100% (wet)
Sensor Resolution 0.59%
Sensor Service Life 3 years in typical growth conditions
Sensor Stability < ±5% per year (in typical growth conditions)
Sensor Type Capacitive grid
Wireless Mote
Battery Life With NiMH batteries: Typical 3-5 years when operated in the temperature range -20° to 40°C (-4°F to 104°F) and positioned toward the sun (see Deployment and Mounting), operation outside this range will reduce the battery service life With lithium batteries: 1 year, typical use
Data Rate Up to 250 kbps, non-adjustable
Duty Cycle <1%
Maximum Number of Motes 50 motes per one RX Wireless Sensor Network
Power Source Two AA 1.2 V rechargeable NiMH batteries powered by built-in solar panel or two AA 1.5 V lithium batteries for operating conditions of -40 to 70°C (-40 to 158°F)
Wireless Mote Dimensions Sensor grid: 4.7 x 5.1 cm (1.8 in x 2.0 inches) Sensor housing: 12.2 x 1.8 cm (4.8 in x 0.7 inches) Mounting bracket: 20 x 3 x 0.5 cm (8 x 1.3 x 0.2 inches) Cable length: 2 m (6.56 ft) Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)
Wireless Mote Environmental Rating Sensor and cable: Weatherproof Mote: IP67, NEMA 6
Wireless Mote Materials Sensor: PVC housing, epoxy potting compound, nylon grommet, FR-4 circuit board, PVC cable jacket Bracket: PVC mounting bracket, UV-stable nylon cable ties, zinc dichromate plated steel U-bolts Mote: PCPBT, silicone rubber seal
Wireless Mote Memory 16 MB
Wireless Mote Modulation Employed OQPSK (Offset Quadrature Phase Shift Keying)
Wireless Mote Operating Temperature Range -25° to 60°C (-13° to 140°F) with rechargeable batteries -40 to 70°C (-40 to 158°F) with lithium batteries
Wireless Mote Radio Operating Frequencies RXW-LWA-900: 904-924 MHz RXW-LWA-868: 866.5 MHz RXW-LWA-922: 916-924 MHz
Wireless Mote Radio Power 12.6 mW (+11 dBm) non-adjustable
Wireless Mote Transmission Range Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) high Reliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high
Wireless Mote Weight Sensor and cable: 127 g (4.5 oz); with bracket: 290 g (10.2 oz) Mote: 223 g (7.87 oz)
Wireless Mote Wireless Data Standard IEEE 802.15.4