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..
- Brands Onset
- Product Code: RXW-LWA-xxx
- Availability: 7-10 Days
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.
| Related Product Videos | Related Product Documentation |
|---|---|
| Visit Onset's YouTube Channel | How To Add the HOBOnet Manager to a HOBO RX3000 Station |
| How-To Videos for Adding Sensors to a HOBOnet Wireless Network |
| 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 |
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