Part Numbers
RXW-TMB-900
•RXW-TMB-868
•RXW-TMB-921
•RXW-TMB-922
HOBOnet Wireless Temperature Sensor
$230.00 USD
A solar-powered wireless sensor that works with the HOBOnet system to monitor air, soil, and water temperatures.
Important Information
A complete system requires at least one HOBO RX3000 Remote Monitoring Station, a HOBOnet Wireless Manager, and a HOBOnet Wireless Sensor, OR one HOBO MicroRX Station (which has an integrated HOBOnet Wireless Manager) and a HOBOnet Wireless Sensor. HOBOnet Wireless Repeaters (RXW-RPTR-xxx or RXW-RPTR-B-xxx) can be added to extend the range.
Overview
A cost-effective and scalable solution for web-enabled monitoring of air, soil, and water temperatures. 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. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset's innovative cloud software platform.
Features
Sensor Features
- Measurement range of -40° to 100°C (-40° to 212°F)
- High accuracy: ± 0.2°C ( ± 0.36°F)
- Stainless-steel sensor tip
- Sensor and cable rated for immersion in water or soil up to 50°C for up to 1 year
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
Specifications
Sensor
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-40° to 100°C-40° to 212°F
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±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)
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0.02°C0.036°F
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<0.01°C (0.018°F) per year
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Without solar radiation shield: 2 minutes, 30 seconds in air moving 1 m/secWith RS3-B solar radiation shield: 5 minutes in air moving 1 m/sec
Measurement Range
Accuracy
Resolution
Drift
Response Time (typical, to 90% of change)
Wireless Mote
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-25° to 60°C (-13° to 140°F) with rechargeable batteries-40° to 70°C (-40° to 158°F) with lithium batteries
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12.6 mW (+11 dBm) non-adjustable
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Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) highReliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high
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IEEE 802.15.4
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RXW-TMB-900: 904-924 MHzRXW-TMB-868: 866.5 MHzRXW-TMB-921: 921 MHzRXW-TMB-922: 916-924 MHz
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OQPSKOffset Quadrature Phase Shift Keying
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Up to 250 kbps, non-adjustable
-
<1%
-
Up to 50 wireless sensors or 336 data channels per one HOBO RX station
-
1 minute to 18 hours
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2
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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
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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 lifeWith lithium batteries: 1 year, typical use
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16 MB
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Sensor: 5.3 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)
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Sensor and cable: 82.5 g (2.91 oz)Mote: 223 g (7.87 oz)
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Sensor: Stainless steel waterproof tipMote: PCPBT, silicone rubber seal
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Sensor and cable: Immersion in water up to 50°C (122°F) for 1 yearMote: IP67, NEMA 6
Operating Temperature Range
Radio Power
Transmission Range
Wireless Data Standard
Radio Operating Frequencies
Modulation Employed
Data Rate
Duty Cycle
Maximum Number of Motes
Logging Rate
Number of Data Channels
Battery Type/Power Source
Battery Life
Memory
Dimensions
Weight
Materials
Environmental Rating
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Compatible items
Web-based Monitoring Systems - via remote communication
Temperature
Communications
NIST Setup & Certifications
Batteries
Grounding Wires
Solar Radiation Shields
Reviews
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