HOBOnet Wireless Temp/RH Sensor
HOBOnet Wireless Temp/RH Sensor
Part Numbers

RXW-THC-B-900

•

RXW-THC-B-868

•

RXW-THC-B-922

•

RXW-THC-B-921

HOBOnet Wireless Temp/RH Sensor

Battery Powered (incl. lithium batteries)

$240.00 USD
A battery-powered wireless sensor that works with the HOBOnet system to monitor air temperature and relative humidity.

Important Information

Includes lithium batteries. A complete system requires a HOBO MicroRX Station, which has an integrated HOBOnet Wireless Manager, and a HOBOnet Wireless Sensor. HOBOnet Wireless Repeater (RXW-RPTR-B-xxx) can be added to extend the range of both system options.

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Overview

A cost-effective and scalable solution for web-enabled monitoring of air temperature and humidity. HOBOnet wireless sensors communicate data directly to the RX 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-based software platform.

Features

Sensor Features

  • High accuracy: ± 0.2°C (± 0.36°F) and ± 2.5% RH
  • Robust RH sensor withstands extended use in high-humidity environments

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 RX Station
  • Simple button-push to join the HOBOnet wireless network
  • Onboard memory to ensure no data loss
  • Powered by 2 user-replaceable lithium AA batteries
Specifications

Sensor

Temperature RH
Measurement Range -40°C to 75°C (-40°F to 167°F) 0–100% RH at -40° to 75°C (-40° to 167°F); exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1%
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 75°C (±0.45°F from 158° to 167°F)		 ±2.5% from 10% to 90% RH typical to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
Resolution 0.02°C (0.036°F) 0.01% RH
Drift <0.01°C (0.018°F) per year <1% per year typical
Response Time (typical, to 90% of change) 3 minutes, 45 seconds in air moving 1 m/s 15 seconds in air moving 1 m/s

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-THC-B-900: 904–924 MHz
RXW-THC-B-868: 866.5 MHz
RXW-THC-B-921: 921 MHz
RXW-THC-B-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 Channels
3
Battery Type
Two AA 1.5 V lithium batteries
Battery Life
1 year, typical use
Memory
16 MB
Dimensions
Sensor: 45.97 x 11.43 x 10.16 mm (1.81 x 0.45 x 0.40 inches)
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)
Weight
223 g
7.87 oz
Materials
Sensor: Polyamide
Mote: PCPBT, silicone rubber seal
Environmental Rating
IP67, NEMA 6
CE Compliance Mark
United States FCC Mark
Australia-New Zealand Regulatory Compliance Mark (RCM)
Compatible items

Web-based Monitoring Systems - via remote communication

RX3000 Remote Monitoring Station
RX3000
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MicroRX Indoor Station
RX2105
From 920.00
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Communications

HOBOnet Repeater
RXW-RPTR-B-xxx
$149.00 USD
900 MHz Americas
RXW-RPTR-B-900
$149.00 USD
868 MHz Europe
RXW-RPTR-B-868
$149.00 USD
922 MHz Australia/New Zealand
RXW-RPTR-B-922
$149.00 USD
921 MHz Taiwan
RXW-RPTR-B-921
$149.00 USD

Batteries

Lithium Batteries
HWSB-LI
$26.00 USD

NIST Setup & Certifications

One Point NIST RH Certification
NIST-RH-ONEPOINT
$116.00 USD
Three Point NIST RH Certification
NIST-RH-THREEPOINT
$182.00 USD
NIST Temperature Point Certification
NIST-TEMP-POINT
$51.00 USD
Compliance Certification
COMPLIANCE CERT
$30.00 USD
What's in the box
  • HOBOnet Wireless Temp/RH Sensor
  • Lithium batteries
Documents
View all documents

RXW Temperature/RH Sensor (RXW‐THC‐B‐xxx) Manual

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RXW Temperature/RH Sensor (RXW‐THC‐B‐xxx) Quick Start

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