Price on request
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.
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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
868 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 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
The RXW-THC-B-xxx sensor supports the following measurements: Dew Point, Relative Humidity and Temperature
| 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) | 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-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 HOBOnet wireless sensor network | |
| 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-922 |
| Property | Value |
|---|---|
| Accuracy | ±0.25°C from -40° to 0°C (±0.45°F from -40° to 32°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 |
| 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 |
| Wireless Data Standard | IEEE 802.15.4 |
| Radio Operating Frequencies | RXW-THC-B-900: 904–924 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 HOBOnet wireless sensor network |
| 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) |
| Weight | 223 g (7.87 oz) |
| Materials | Sensor: Polyamide |
| Environmental Rating | IP67, NEMA 6 |
| Compliance Marks |  RXW-THC-B-900 |
LI-COR (HOBO, InTemp, LI-COR) · RX2105
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