Canada’s Instrumentation Leader Since 1946.
Canada’s Instrumentation Leader Since 1946.
Hoskin EnvironmentalSampling and monitoring instruments for air, water, weather and soil for the environmental, agricultural, mining and research markets.
Hoskin GeotechnicalMaterials and Product testing for soil, asphalt, petroleum, concrete, mining, cement, and research industries.
Hoskin InstrumentationSensors, transducers and instrumentation for industry, manufacturing, research and development and factory automation.
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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 software platform.
Sensor Features
Wireless Features
| 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 (to 90% of step 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 |
| 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-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 RX Wireless Sensor Network |
| 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) |
| 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 |
| Memory | 16 MB |
| Dimensions | Sensor: 5.1 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 |
| Compliance Marks | RXW-TMB-900 RXW-TMB-868 RXW-TMB-922 |
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