RXW-THC-B-900
RXW-THC-B-868
RXW-THC-B-922
RXW-THC-B-921
HOBOnet Wireless Temp/RH Sensor
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.
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 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.
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
In what environment does this sensor operate?
This sensor operates in an indoor environment.
What measurements does this sensor support?
The RXW-THC-B-xxx sensor supports the following measurements: Dew Point, Relative Humidity and Temperature
The country of origin for this product is the United States. To see the full specifications for this product, please see our product manual found under the documentation tab if available.
| 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 |  RXW-THC-B-900 RXW-THC-B-868 RXW-THC-B-921 RXW-THC-B-922 |
|
- Lithium batteries included.
The following are associated resources for this product. In general users of this product can gain insight into its possible use by utilizing the resources below.
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A cellophane four-pack of long-lasting, cold-tolerant lithium AA batteries. Note: lithium batteries cannot be shipped on commercial airlines, and no more than 24 can be shipped in a single box
The compact HOBO MicroRX Station is an easy-to-deploy, low-cost cellular solution for long-term, reliable monitoring of indoor conditions in warehouses, cold storage facilities, data centers, museums, commercial and residential buildings, and more. The station includes an integrated HOBOnet Manager, for easy deployment with wireless HOBOnet sensors. The station also features inputs for up to five of Onset's research-grade plug-and-play sensors. Configurable station-side alarms trigger immediate notifications of critical conditions, and Onset's cloud-based HOBOlink platform makes it easy to view, access, and share data.
The HOBOnet Wireless Repeater is designed to work with the HOBOnet Wireless Sensor Network. The repeater is ideal when there is an obstruction between wireless sensors and the RX Stations or for extending the transmission range of wireless sensors in the network.
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Detailed Specifications
HOBOnet Wireless Temp/RH Sensor
| 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 | RXW-THC-B-900 RXW-THC-B-868 RXW-THC-B-921 RXW-THC-B-922 |
|
