HOBOnet Temperature & Relative Humidity Sensor
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 commu..
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- Product Code: RXW-THC-xxx
- Availability: 7-10 Days
Temperature & Relative Humidity HOBOnet Sensor
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.
- High accuracy: ± 0.2°C (± 0.36°F) and ± 2.5% RH
- Robust RH sensor withstands extended use in high-humidity environments
- 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 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 an outdoor environment.
What measurements does this sensor support?
The RXW-THC-xxx sensor supports the following measurements: Evapotranspiration, Relative Humidity and Temperature
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. Still, think you might need some assistance in choosing the best solution?
|Relative Humidity Sensor|
|Relative Humidity Sensor Accuracy||±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|
|Relative Humidity Sensor Drift||<1% per year typical|
|Relative Humidity Sensor Range||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%|
|Relative Humidity Sensor Resolution||0.01% RH|
|Relative Humidity Sensor Response Time||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 (typical, to 90% of change)|
|Temperature Sensor 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)|
|Temperature Sensor Drift||<0.01°C (0.018°F) per year|
|Temperature Sensor Range||-40°C to 75°C (-40°F to 167°F)|
|Temperature Sensor Resolution||0.02°C (0.036°F)|
|Temperature Sensor Response Time||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 (typical, to 90% of change)|
|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|
|Data Rate||Up to 250 kbps, non-adjustable|
|Maximum Number of Motes||50 motes per one RX Wireless Sensor Network|
|Modulation Employed||OQPSK (Offset Quadrature Phase Shift Keying)|
|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)|
|Radio Operating Frequencies||RXW-THC-900: 904–924 MHz RXW-THC-868: 866.5 MHz RXW-THC-922: 916–924 MHz|
|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|
|Wireless Mote 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)|
|Wireless Mote 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|
|Wireless Mote Materials||Sensor: Polyamide Mote: PCPBT, silicone rubber seal|
|Wireless Mote Memory||16 MB|
|Wireless Mote Operating Range||-25° to 60°C (-13° to 140°F) with rechargeable batteries -40 to 70°C (-40 to 158°F) with lithium batteries|
|Wireless Mote Weight||Sensor and cable: 110 g (3.88 oz); Mote: 223 g (7.87 oz)|