HOBOnet Wireless Temperature Sensor
Overview
The HOBOnet Wireless Temperature Sensor provides a cost-effective and scalable solution for web-enabled monitoring of air, soil, and water temperatures. 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.
Manufactured by: Onset
Model: HOBOnet Wireless Temperature Sensor
Services offered for this product
- Sales
- Rental
- Installation
- Calibration
- Maintenance
Applications
Air temperature
Soil temperature
Temperature
Water temperature
Specification
| Sensor | |
| Measurement 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) |
| Drift | <0.01°C (0.018°F) per year |
| Response Time (typical, to 90% of change) | Without solar radiation shield: 2 minutes, 30 seconds in air moving 1 m/sec With RS3-B solar radiation shield: 5 minutes in air moving 1 m/sec |
| Wireless Mote | |
| 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) 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-TMB-900: 904–924 MHz RXW-TMB-868: 866.5 MHz RXW-TMB-921: 921 MHz RXW-TMB-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 Data Channels | 2 |
| 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 (-40° to 158°F) |
| Memory | 16 MB |
| Dimensions | Sensor: 5.3 x 33 mm (0.2 x 1.3 inches) Cable length: 5 m (16.4 ft) Mote: 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) Mote: 223 g (7.87 oz) |
| Materials | Sensor: Stainless steel waterproof tip Mote: PCPBT, silicone rubber seal |
| Environmental Rating | Sensor and cable: Immersion in water up to 50°C (122°F) for 1 year Mote: IP67, NEMA 6 |