HOBOnet Wireless Temperature Sensor

Name: HOBOnet Wireless Temperature Sensor
Brand: Hydromatics Limited
Availability: InStock

Free returns on all eligible orders

You have 30 days to request a return. All sale items are final sale.

Overview

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.

Features

Sensor Features

Measurement range of -40° to 100°C (-40° to 212°F)
High accuracy: ± 0.2°C ( ± 0.36°F)
Stainless-steel sensor tip
Sensor and cable rated for immersion in water or soil up to 50°C for up to 1 year

Wireless Features

900 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 or 336 data channels per HOBO RX station
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

Specifications

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

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: 5.3 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

Shipping information

Use this text to share information about your product.

Returns & warranty

Use this text to share information about your product.