 
                
			
			
				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.
Leia mais 
				 
							 
							 
							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:
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
| Product | Compatible | Note | 
|---|---|---|
| Aspen 10 | ||
| CR1000X (retired) | ||
| CR300 (retired) | ||
| CR3000 (retired) | ||
| CR310 | ||
| CR350 | ||
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) | 
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.
| 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. | 
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.