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HOBOnet Temp/RH Sensor

Manufacturer:
The HOBOnet Wireless Temperature and Relative Humidity Sensor provides a cost-effective and scalable solution for web-enabled monitoring of air temperature and humidity. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station or pass data through other wireless sensors back to the central station.
Part Number: RXW-THC-922
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$502.00 ex GST
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Overview

The HOBOnet Wireless Temperature and Relative Humidity Sensor provides a cost-effective and scalable solution for web-enabled monitoring of air temperature and humidity. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather 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.

 

Highlighted 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

  • 922 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 per RX3000
  • 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

In what environment does this sensor operate?

This sensor operates in indoor and outdoor environments.

What measurements does this sensor support?

The RXW-THC-xxx sensor supports the following measurements: Evapotranspiration, Relative Humidity and Temperature

Important Info:

A complete system requires at least one HOBO RX3000 Remote Monitoring Station, a HOBOnet Wireless Manager (RXMOD-RXW-xxx), and a HOBOnet Wireless Sensor. HOBOnet Wireless Repeaters (RX-RPTR-xxx) can be added to extend the range.

To see the full specifications for this product, please see our product manual found under the documentation above.

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 100°C (±0.45°F from 158° to 212°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)

 

Without solar radiation shield: 3 minutes,
45 seconds in air moving 1 m/sec
With RS3-B solar radiation shield: 6 minutes, 30 seconds in air moving 1 m/sec

Without solar radiation shield: 15 seconds in air moving 1 m/sec
With RS3-B solar radiation shield: 30 seconds 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-THC-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

50 motes per one RX Wireless Sensor Network

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: 5.1 x 33 mm (0.2 x 1.3 inches)
Cable length: 2 m (6.56 ft)
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)

Weight

Sensor and cable: 110 g (3.88 oz);
Mote: 223 g (7.87 oz)

Materials

Sensor: Polyamide
Mote: PCPBT, silicone rubber seal

Environmental Rating

Sensor: Weatherproof: 0 to 100% RH intermittent condensing environments. For best results, the sensor should be mounted inside a protective enclosure, such as a solar radiation shield. Mote: IP67, NEMA

Compliance Marks

Australia and New Zealand Complicance     RXW-THC-922

Onset HOBOnet Field Monitoring System

How to Create a Dashboard in HOBOlink

How To Add the Onset HOBOnet Manager to the RX3000 Station

How to Add Sensors to the HOBOnet Wireless Sensor Network

Wireless and Wired Sensors

Click Here for HOBOnet wireless sensors or see related products below.

For Smart Sensors (Plugged into RX3000) Click here

Overview

The HOBOnet Wireless Temperature and Relative Humidity Sensor provides a cost-effective and scalable solution for web-enabled monitoring of air temperature and humidity. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather 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.

 

Highlighted 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

  • 922 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 per RX3000
  • 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

In what environment does this sensor operate?

This sensor operates in indoor and outdoor environments.

What measurements does this sensor support?

The RXW-THC-xxx sensor supports the following measurements: Evapotranspiration, Relative Humidity and Temperature

Important Info:

A complete system requires at least one HOBO RX3000 Remote Monitoring Station, a HOBOnet Wireless Manager (RXMOD-RXW-xxx), and a HOBOnet Wireless Sensor. HOBOnet Wireless Repeaters (RX-RPTR-xxx) can be added to extend the range.