Agricultural Research

Ein drahtloser Sensor, der genaue Daten über die Blattnässe für eine Vielzahl von Anbau- und Forschungsanwendungen liefert. Er ist sofort einsatzbereit und erfordert keine Lackierung oder Beschichtung.

Wichtige Informationen

Ein vollständiges System erfordert mindestens einen HOBO RX3000 Fernüberwachungsstation, a HOBOnet Drahtlos-Manager, und eine HOBOnet Drahtloser Sensor, ODER eine HOBO MicroRX-Station (mit integriertem HOBOnet Wireless Manager) und einem HOBOnet Drahtloser Sensor. HOBOnet Funk-Repeater (RXW-RPTR-xxx oder RXW-RPTR-B-xxx) können hinzugefügt werden, um die Reichweite zu erhöhen.

CHF 394.00

SKU

RXW-LWA-868

10 für jeweils CHF 382.20 kaufen und 3% sparen
25 für jeweils CHF 374.30 kaufen und 5% sparen
50 für jeweils CHF 362.50 kaufen und 8% sparen
100 für jeweils CHF 346.75 kaufen und 12% sparen

Details

Technische Daten

Datenblatt

Kompatible Artikel

Overview

Provides accurate leaf wetness data for a variety of growing and research applications. This preconfigured, ready-to deploy sensor requires no painting or coating, 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 or the HOBO MicroRX station or pass data through other wireless sensors back to the central station. Data is accessed through HOBOlink, Onset's innovative cloud software platform.

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 or 336 data channels per HOBO RX station
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

What's in the box

HOBOnet Leaf Wetness sensor
Zip ties and screws for mounting

Specifications

Sensor

Measurement Range: 0 (dry) to 100% (wet)
Sensor Type: Capacitive grid
Interchangeability Between Sensors (Over the Range 10-90% Wet): ±10%
Repeatability: ±5%; see Note 1
Resolution: 0.59%
Stability (Drift): < ±5% per year

in typical growth conditions
Service Life: 3 years in typical growth conditions

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
Radio Power: 12.6 mW (+11 dBm) non-adjustable
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 Data Standard: IEEE 802.15.4
Radio Operating Frequencies: RXW-LWA-900: 904-924 MHz

RXW-LWA-868: 866.5 MHz

RXW-LWA-922: 916-924 MHz

RXW-LWA-921: 921 MHz
Modulation Employed: OQPSK

Offset Quadrature Phase Shift Keying
Data Rate: Up to 250 kbps, non-adjustable
Duty Cycle: <1%
Maximum Number of Motes: Up to 50 wireless sensors or 336 data channels per one HOBO RX station
Logging Rate: 1 minute to 18 hours
Number of Data Channels: 2
Battery Type/ 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)
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
Memory: 16 MB
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)
Weight: Sensor and cable: 127 g (4.5 oz); with bracket: 290 g (10.2 oz)

Mote: 223 g (7.87 oz)
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
Environmental Rating: Sensor and cable: Weatherproof

Mote: IP67, NEMA 6