Características Destacadas
Características do sensor
Faixa de medição de -40° a 100°C
Precisão elevada: ± 0,2°C
Ponta do sensor em aço inoxidável
Sensor e cabo classificados para imersão em água ou solo até 50°C por até 1 ano
Características Wireless
Tecnologia de auto-recuperação de malha sem fio de 868 MHz
Distância sem fio de 450 até 600 metros
Até 50 sensores sem fios por RX3000
Com um simples toque de botão, é possível conectar-se à rede sem fio HOBOnet
Memória integrada para garantir que não haja perda de dados
Alimentação por pilhas recarregáveis AA e painel solar integrado
O sensor RXW-TMB-xxx suporta as seguintes medições: Temperatura do ar, temperatura do solo, temperatura e temperatura da água
Sensor
Measurement Range
-40° to 100°C (-40° to 212°F)
Accuracy
±0.25°C from -40° to 0°C (±0.45°F from -40° to 32°F)
±0.20°C from 0° to 70°C (±0.36°F from 32° to 158°F)
±0.25°C from 70° to 100°C (±0.45°F from 158° to 212°F)
Resolution
0.02°C (0.036°F)
Drift
<0.01°C (0.018°F) per year
Response Time
(to 90% of step change)
Without solar radiation shield: 2 minutes, 30 seconds in air moving 1 m/sec
With RS3-B solar radiation shield: 5 minutes in air moving 1 m/sec
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-TMB-900: 904–924 MHz
RXW-TMB-868: 866.5 MHz
RXW-TMB-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: 5.1 x 33 mm (0.2 x 1.3 inches)
Cable length: 5 m (16.4 ft)
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)
Weight
Sensor and cable: 82.5 g (2.91 oz)
Mote: 223 g (7.87 oz)
Materials
Sensor: Stainless steel waterproof tip
Mote: PCPBT, silicone rubber seal
Environmental Rating
Sensor and cable: Immersion in water up to 50°C (122°F) for 1 year
Mote: IP67, NEMA 6
Compliance Marks
RXW-TMB-900
RXW-TMB-868
RXW-TMB-922
