Part Numbers

RXW-TMB-900RXW-TMB-868RXW-TMB-921RXW-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.

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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
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) 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-921: 921 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 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: 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)
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

Image
FCC Logo
RXW-TMB-900

Image
ce
RXW-TMB-868
Taiwan NCC Mark RXW-TMB-921

Image
Australia/New Zealand General Compliance mark
RXW-TMB-922

Compatible items

Web-based Monitoring Systems - via remote communication

Temperature

RXW-THC-B-xxx
$240.00 USD
RXW-THC-B-900
$240.00 USD
RXW-THC-B-868
$240.00 USD
RXW-THC-B-922
$240.00 USD
RXW-THC-B-921
$240.00 USD

Communications

RXMOD-RXW-xxx
$199.00 USD
RXMOD-RXW-900
$199.00 USD
RXMOD-RXW-868
$199.00 USD
RXMOD-RXW-922
$199.00 USD
RXMOD-RXW-921
$199.00 USD
RXW-RPTR-xxx
$159.00 USD
RXW-RPTR-900
$159.00 USD
RXW-RPTR-868
$159.00 USD
RXW-RPTR-922
$159.00 USD
RXW-RPTR-921
$159.00 USD

NIST Setup & Certifications

NIST-TEMP-POINT
$51.00 USD
COMPLIANCE CERT
$30.00 USD

Batteries

HWSB-LI
$26.00 USD
HRB-NiMH-2
$12.00 USD

Grounding Wires

CABLE-MICRO-G
$14.00 USD
M-GKA
$79.00 USD

Solar Radiation Shields

RS3-B
$75.00 USD

Documents

RXW Temperature Sensor (RXW-TMB-xxx) Manual

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RXW Temperature Sensor (RXW-TMB-xxx) Quick Start

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Reviews

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