Network temperature sensor HOBOnet RXW-TMB-868

Finally discover a solution economic and progressive for the monitoring online temperature'air ground and of'water thanks to wireless sensors HOBOnet which communicates the data directly to HOBO RX3000 or to hOBO MicroRX station, or transmit data via other wireless sensors towards the central station. They are preconfigured and ready for deployment, and data are accessible via HOBOlink, the software platform cloud innovative'Onset.

Technical characteristics of the sensor:

- Measuring range from -40° to 100°C (-40° to 212°F)
- High accuracy: ± 0.2 °C (± 0.36 °F)
- Stainless steel sensor tip
- Sensor and cable designed for immersion in water or soil up to 50 °C for up to 1 year
- Wireless features
- 900 MHz wireless mesh self-healing technology
- Wireless range from 450 to 600 metres (1,500 to 2,000 feet) and up to five jumps
- Up to 50 wireless sensors or 336 data channels per HOBO RX station
- Just press a button to join the HOBOnet wireless network
- Onboard memory to avoid data loss
- Powered by rechargeable AA batteries and integrated solar panel

Additional features of the temperature sensor:

- Measuring range: -40° to 100°C (-40° to 212°F)
- 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)
- Resolution: 0.02 °C (0.036 °F)
- Drive: - Response time (typical, 90% of change):
Without sunscreen : 2 minutes, 30 seconds in the air moving at 1 m/sec
With RS3-B sunscreen : 5 minutes in the air moving at 1 m/sec

Additional features of the wireless sensor:

- 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) not adjustable
- Transmission range:
Reliable connection to a 457.2 m (1,500 ft) sight line at a height of 1.8 m (6 ft)
Reliable connection to a 609.6 m (2 000 ft) sight line at a height of 3 m (10 ft)
- Wireless data standard: IEEE 802.15.4
- Radio operating frequencies RXW-TMB-868: 866.5 MHz
- Modulation employed: OQPSK (decalation of modulation by quadrature phase displacement)
- Data flow rate: up to 250 kbps, not adjustable
- Service cycle: - Maximum number of points up to 50 wireless sensors or 336 data channels per HOBO RX station
- Log rate: 1 minute at 6 p.m
- Number of data channels: 2
- Type of battery / power source
2 rechargeable NiMH batteries AA 1.2 V powered by an integrated solar panel
or
2 AA 1.5 V lithium batteries for operating conditions from -40° to 70°C (-40° to 158°F)
- Battery life:
With NiMH batteries : 3 to 5 years typical when used in a temperature range of -20° to 40°C (-4°F to 104°F) and positioned towards the sun (see Deployment and mounting), operation outside this range will reduce battery life
With lithium batteries : 1 year, typical use
- Memory : 16 MB
- Dimensions:
Sensor : 5,3 x 33 mm (0,2 x 1,3 inches)
Cable length : 5 m (16.4 feet)
Sensor : 16,2 x 8,59 x 4,14 cm (6,38 x 3,38 x 1,63 inches)
- Weight:
Sensor and cable : 82.5 g (2.91 oz)
Sensor : 223 g (7.87 oz)
- Materials:
Sensor : Waterproof stainless steel tip
Wireless sensor : PPCBT, silicone rubber seal
- Environmental Assessment:
Sensor and cable : Immersion in water up to 50 °C (122 °F) for 1 year
Wireless sensor : IP67, NEMA 6