Part Numbers

RXW-THC-B-900RXW-THC-B-868RXW-THC-B-922RXW-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.

Options for this product

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
Compliance Marks

Image
FCC Logo
RXW-THC-B-900

Image
ce
RXW-THC-B-868
Taiwan NCC Mark RXW-THC-B-921

Image
Australia/New Zealand General Compliance mark
RXW-THC-B-922

Compatible items

Web-based Monitoring Systems - via remote communication

Communications

RXW-RPTR-B-xxx
$149.00 USD
RXW-RPTR-B-900
$149.00 USD
RXW-RPTR-B-868
$149.00 USD
RXW-RPTR-B-922
$149.00 USD
RXW-RPTR-B-921
$149.00 USD

Batteries

HWSB-LI
$26.00 USD

NIST Setup & Certifications

NIST-RH-ONEPOINT
$116.00 USD
NIST-RH-THREEPOINT
$182.00 USD
NIST-TEMP-POINT
$51.00 USD
COMPLIANCE CERT
$30.00 USD

What's in the box

  • HOBOnet Wireless Temp/RH Sensor
  • Lithium batteries

Documents

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

View View

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

View View

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