The DTS-12 is a turbidity and temperature sensor designed specifi cally to deliver high accuracy results from a sensor that can be easily fi eld-deployed and requires very little maintenance.
The sensor features a 12-month recalibration interval and a built-in silicon wiper blade which helps minimize biofouling, helping to ensure accurate sampling from 0 to 1,600 NTU. The DTS-12 meets the quality standards of the USGS and has received their approval for in-situ turbidity monitoring.

In order to provide quality turbidity data, the DTS-12 takes 100 readings over fi ve seconds, then computes and outputs the mean, variance, median, min, and max values. This statistical analysis compensates for entrained debris spikes and “cleans” the data, providing a precise measurement of bulk turbidity.
The DTS-12 uses Nephelometric geometry calculations to improve the signal-to-noise ratio by measuring the forward and back scattered light at a 90° angle to the light beam. Because of Nephelometry’s sensitivity, precision and applicability over a wide particle size and turbidity range, it’s the preferred method for measuring turbidity by the EPA.
The DTS-12 is simple to confi gure and use, offering a standard SDI-12 output for communication with data loggers or telemetry devices.

• High-accuracy turbidity measurement
• Quick setup and deployment
• Low maintenance requirements
• Accurate even in shallow wate

• Silicon wiper blade keeps sensor clean from bio-fouling
• Requires maintenance only once per year
• SDI-12 output for connection to most data loggers and radios/modems
• High accuracy over entire measurement range
• 10-point factory calibration
• Built-in statistical analysis provides more accurate dat

• Watersheds monitoring
• River monitoring
• Steam monitoring
• Shallow water applications
• Fish / marine life habitat monitoring
• Permit/discharge monitoring
• Stormwater runoff analysis

Range

Measurements Returned

Instantaneous turbidity
The following are computed from 100 samples taken:
Mean
Variance
Median
Min
Max
Temperature

Accuracy (Turbidity)

±2% (0-499 NTU @ 77 °F)
±4% (500-1,600 NTU @ 77 °F)
Zero offset: ±0.2 NTU
Resolution: 0.01 NTU

Accuracy (Temperature)

Supply Voltage Range

Sample Rate

Power Consumption (typical)

Standby: 350 µA
Operating: 50 mA
Motor wiping: 100 mA

Dimensions

Length: 12 in. (30.48cm)
Diameter: 2 in. (5.08cm)

Cleaning Blade Wipe Time

Weight

Depth Rating

Cable Options

Fixed Cables: Custom Lengths
Connectorized cables: 60 ft (18.3 m) / 100 ft (30.5 m)

Operating Temperature

+32 °F to +104 °F
(0 °C to +40 °C)

Communication Protocol