HOBOnet® Wireless Sensor Network
RXW Temperature Sensor (RXW-TMB-1-xxx and RXW-TMB-6-xxx) Manual
25547-B
This sensor measures temperature and is designed to work with the HOBOnet (HOBO® RX)
Wireless Sensor Network in which data is transmitted wirelessly from the sensor mote across
the network to the station and then uploaded to HOBOlink® web-based software. With
HOBOlink, you can monitor sensor readings, view graphs, set up alarms, download data, and
more.
Specifications
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 (typical, to
90% of change)
2 minutes, 30 seconds in air moving 1 m/sec
Wireless Mote
Operating Temperature
Range
-40° to 70°C (-40° to 158°F)
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-x-900: 904–924 MHz
RXW-TMB-x-868: 866.5 MHz
RXW-TMB-x-921: 921 MHz
RXW-TMB-x-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
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
Two AA 1.5 V lithium batteries
Battery Life
1 year, typical use
Memory
16 MB
Dimensions
Sensor: 5.3 x 33 mm (0.2 x 1.3 inches)
Cable length: 0.3 m (1 ft), RXW-TMB-1-xxx; 1.8 m (6 ft), RXW-TMB-6-xxx
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)
Weight
Sensor and cable: 7.6 g (0.27 oz), RXW-TMB-1-xxx; 35.2 g (1.24 oz), RXW-
TMB-6-xxx
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-1-900 and RXW-TMB-6-900: See last page.
RXW-TMB-1-868 and RXW-TMB-6-868: The CE Marking
identifies this product as complying with all relevant directives
in the European Union (EU).
RXW-TMB-1-921 and RXW-TMB-6-921: See last page.
RXW-TMB-1-922 and RXW-TMB-6-922: See last page.
RXW Temperature
Sensor
Models:
•
RXW-TMB-1-900 and
RXW-TMB-6-900 (US)
•
RXW-TMB-1-868 and
RXW-TMB-6-868
(Europe)
•
RXW-TMB-1-921 and
RXW-TMB-6-921
(Taiwan)
•
RXW-TMB-1-922 and
RXW-TMB-6-922
(Australia/NZ)
Included Items:
•
Cable ties
•
Screws
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