Prevent traffic accidents and loss of life
Overview
The Wintersense SDI-12 is a remote road surface temperature sensor designed for use with your Road Weather Information Systems (RWIS). It is an easy-to-deploy, non-invasive, compact, and lightweight sensor that you can mount on existing roadside structures such as streetlight columns or RWIS towers. The Wintersense SDI-12 has a cabled connection for power and communications with an RWIS station or data logger for data storage and forwarding.
With accurate, real-time road surface temperature data, you can forecast your winter road treatments, preventing traffic accidents and potential loss of life.
Read MoreBenefits and Features
- Accurate
- Non-invasive
- Easy to install
- Simple to maintain
- Compatible with most data loggers and RWIS
- Remote firmware updates
Images
Technical Description
The Wintersense SDI-12 is equipped with a thermopile sensor that detects the presence of thermal radiation emitted from the target surface. The sensor also has an integrated optical filter that cuts off the visible and near-infrared radiation flux so that you get optimum ambient and sunlight immunity. These features, combined with an eight-second signal-averaging algorithm, provide you with best-of-class data for these measurement parameters:
- Road surface temperature
- Air temperature
- Relative humidity
- Dewpoint
- Installation angle
- Sensor temperature
Aspen 10-Compatible IoT Solution
The Wintersense SDI-12 can be paired with the Aspen™10 Internet of Things (IoT) Edge Device. To get next-gen IoT solutions for advanced meteorological monitoring, click the image below:
Specifications
Road-Surface Temperature |
|
| Measurement Range | -40 to +70°C (-40 to +158°F) |
| Accuracy at -40 to +60°C |
|
| Resolution | ±0.01°C |
| Field of View (FOV) |
|
| Distance to Target | 2 to 15 m (6.6 to 49.2 ft) |
Dew Point Temperature (Calculated) |
|
| Measurement Range | -40 to +70°C (-40 to +158°F) |
| Accuracy |
|
| Resolution | 0.1°C |
Air Temperature |
|
| Measurement Range | -40 to +70°C (-40 to +158°F) |
| Accuracy |
|
| Resolution | ±0.01°C |
Relative Humidity |
|
| Measurement Range | 0 to 100% |
| Accuracy | < ±3% |
| Resolution | ±0.1% |
General Specifications |
|
| Operating Temperature Range | -40 to +70°C (-40 to +158°F) |
| Operating Humidity Range | 0 to 100% |
| Internal Enclosure Sealing | IP65 (minimum) |
| Typical Power Consumption @ 12 Vdc |
|
| Supply Voltage Range | 5 to 18 Vdc |
| Dimensions | 350 x 200 x 100 mm (13.8 x 7.9 x 4.0 in.) |
| Weight | 1.4 kg (3 lb) |
| Digital Output | SDI-12 |
| Default SDI-12 Address | 0 |
| Response Time (to M!) | 8 s to read all sensor outputs using SDI-12 commands |
| Sensor Warm-up Time | If power is switched, allow 3 s for warm-up before taking a measurement. |
Compatibility
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
Dataloggers
| Product | Compatible | Note |
|---|---|---|
| Aspen 10 | ||
| CR1000X | ||
| CR300 | ||
| CR3000 (retired) | ||
| CR310 | ||
| CR350 | ||
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR850 (retired) | ||
| CR850 (retired) | ||
| CR850 (retired) |
Additional Compatibility Information
The Wintersense SDI-12 is SDI-12 v1.4 compliant and is compatible with all SDI-12 compliant recorders and all Campbell Scientific RWIS stations. Please check with the manufacturer of any non-Campbell Scientific RWIS station to determine compatibility with the SDI-12 industry standard.
Downloads
Wintersense SDI-12 Program Example v.1 (1 KB) 07-12-2022
An example program to read and store Wintersense SDI-12 data every five minutes. Program uses 0 for the SDI-12 address. This program has a CRB extension making it compatible with GRANITE, CR6, CR1000X, CR350, and CR300 data loggers.
Case Studies
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