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Data acquisition
Hobo RX3000 – Onset
The HOBO RX3000 is Onset’s most flexible remote data logging station. It provides instant access…
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Hobo RXW-THC-xxx – Onset
HOBOnet temperature and relative humidity sensor, a complete system requires at least one Hobo RX3000 monitoring station, a HOBOnet wireless manager (RXMOD-RXW-xxx) or one Hobo MicroRX station (which has an integrated HOBOnet wireless manager).
Wireless
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 Hobo RX3000 or the Hobo MicroRX 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.
The sensor has a high accuracy of ± 0,2°C and ± 2,5% RH. The robust RH sensor withstands extended use in high-humidity environments and the sensor has wireless features. It has a wireless signal range up to 450 to 600 meter and up to five hops, the HOBOnet wireless repeaters (RXW-RPTR-xxx or RXW-RPTR-B-xxx) can be added to extend the range. You can add up to 50 wireless sensors or 336 data channels per Hobo RX station. A simple button push makes sure to join the HOBOnet wireless network and it has an onboard memory to ensure no data loss. It is powered by rechargeable AA batteries and built-in solar panel. This sensor operates in an outdoor environment and the RXW-THC-xxx sensor supports the following measurements: dew point, evapotranspiration, relative humidity and temperature.
Technical specifications
Measurement range: -40°C to 75°C and 0–100% RH at -40° to 75°C
Accuracy: ±0,25°C from -40° to 0°C, ±0,20°C from 0° to 70°C, ±0,25°C from 70° to 100°C and ±2,5% from 10% to 90% RH, below 10% and above 90% ±5%
Drift: <0,01°C per year and <1% per year
Operating temperature range: -25° to 60°C with rechargeable batteries and -40 to 70°C with lithium batteries
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 data channels: 3
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
Battery life: with NiMH batteries: 3–5 years when operated in the temperature range -20° to 40°C and positioned toward the sun, with lithium batteries: 1 year
Memory: 16 MB
Cable length: 2 meters
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
