Um sistema completo requer pelo menos uma estação de monitoramento remoto HOBO RX3000, um HOBOnet Wireless Manager (RXMOD-RXW-xxx) e um sensor sem fio HOBOnet. Repetidores sem fio HOBOnet (RX-RPTR-xxx) podem ser adicionados para estender o alcance.
Características Destacadas
Não requer pintura ou revestimento
Pré-condicionado para medições consistentes
Cabo de 3 metros e suporte de montagem incluídos
Características Wireless
Tecnologia sem fio mesh de 868 MHz com autocorreção.
Alcance sem fio de 450 a 600 metros e até cinco saltos.
Até 50 sensores sem fios por RX3000
Botão simples - pressione para entrar na rede sem fio HOBOnet
Memória integrada para garantir que não haja perda de dados
alimentado por pilhas AA recarregáveis e painel solar integrado
O sensor RXW-LWA-xxx suporta a seguinte medição: humidade foliar
| 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 |
| 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 |
| Modulation Employed |
OQPSK (Offset Quadrature Phase Shift Keying) |
| Data Rate |
Up to 250 kbps, non-adjustable |
| Duty Cycle |
<1% |
| Maximum Number of Motes |
50 motes per one RX Wireless Sensor Network |
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 |
| Compliance Marks |
 RXW-WCG-900 |
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| |
 RXW-WCG-868 |
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| |
 RXW-WCG-922 |
