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Conductivity/TDS/Salinity Meter w/Real Time SD Card Data Logger

Conductivity, TDS, and Salinity Meter with Real Time SD Card Data Logger
  • RoHS Icon
  • CE Approved


Item# CDH-SD11

In stock

Lead Time (If not in stock): 9 weeks
Conductivity, TDS, and Salinity Meter with Real Time SD Card Data Logger CDH-SD11 CDH-SD11
  • Professional look design, accurate, portable meters with large LCD display, with BNC connector.
  • All electrodes with BNC connector compatible to any other electrodes.
  • Hold function, low battery icon indicator, automatic power off in 15 minutes and may be disabled.
  • Built-in different temperature compensation selectable: Thermistor 30K, 10K ohm.

CDH-SD11 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

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Measurement Type
Supply Power

The OMEGA™ CDH-SD11 is innovative and easy to operate. What sets the CDH-SD11 apart from other
conductivity meters is that it incorporates a real-time SD card data logger. The CDH-SD11 measures
conductivity, TDS (Total Dissolved Solids) or salt concentration using a graphite plate electrode for long
life. Downloading data from the SD card into an Excel spreadsheet allows the user to do further data or
graphical analysis without special software. The CDH-SD11 has a wide variety of applications from water
conditioning, aquariums, beverage manufacturing and fish hatcheries to food processing, photography,
paper and plating industries, educational and other laboratories.

Model: CDH-SD11
Parameter: Conductivity/EC/TDS /Salt
Data logger sampling time: Auto: 2 secs, 5 secs, 10 secs, 15 secs, 30 secs, 60 secs, 120 secs, 300secs,
600 secs, 900 secs, 1800 secs, 1Hr.
Setting range: Manual: Press the ADJ button once will save data one time. @Set the sampling time to 0
Memory Card: SD memory card 8G
Data Hold: Freeze the display reading.
Meter dimension: 180mm x 58mm x 32mm (With BNC connector)
Power supply: AAA batteries x 3 pcs, or / 100 ~ 240VAC-9Vdc AC/DC adaptor with universal plug
configurations. All included
Temperature Range: 0~90℃ (32 to 194F)
Temp. accuracy : ±0.5 ℃
Measurement range: 0.05 uS/cm~1999 uS/cm (K=0.1) Option
30 uS/cm~20 ms/cm (K=1) Supplied
500 uS/cm ~199 mS/cm (K=10) Option
Accuracy: ±1% of full scale + 1 digit
Conductivity Calibration: 1 point 1413 uS calibration (K=1)
1 point 12.8 mS calibration (K=10)
Resolution: 0~19.99 uS/cm (0.01), 0~199.9 uS/cm (0.1), 0~1999 uS/cm (1)
0~19.99 mS/cm (0.01), 0~199.9 mS/cm (0.1)
Dimension: 12x120mm
Electrode body: ABS
Sensor type: Graphite plate
TDS (Total Dissolved Solids)
Measurement range: 0 to 19.99 ppm, 0 to 199.9 ppm, 0 to 1999 ppm, 0 to 19.99 ppt, 0 to 199.9 ppt
Accuracy: ±1% of full scale + 1 digit
Resolution: 0.01 ppm, 0.1 ppm, 1 ppm, 0.01 ppt, 0.1 ppt
Measurement range: 0~42.0 ppt (Sea water)
Accuracy: ±1% of full scale + 1 digit
Resolution: 0.1 ppt
ATC Temperature sensor Probe port: 3.5 mm diameter phone jack
Cable length: 1 M
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Rated 2 out of 5 by from Not built for production environment This version is not as robustly build as my SD1 was. I have concerns about how it will handle the production environment it is in.
Date published: 2024-05-30
Rated 1 out of 5 by from K10 calibration solution not available! Purchased this meter with K1 and K10 electrodes. I want to perform a calibration of the K10 (0-200mS range) and the manual asks for a 12.8mS solution. No STD solution of 12.8mS available at Omega. I call Omega and I am recommended to buy a 45mS solution to calibrate K10, which I do. Once I receive the solution, I find out there is no way to tell the meter that the solution is not 12.8 but 45mS! The engineering dept confirms that too on the phone... A bit unfortunate to not being able to calibrate such instrument! I will send it back...
Date published: 2021-03-24
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Will this measure salinity for seawater? I am not sure what "option" vs. "supplied" means in the description for the range in conductivity. Does this mean selectable or does it mean that an optional accessory must be purchased?

Asked by: Doc_C
Thank you for your inquiry! Yes the salinity for seawater can be measure using this device. In the description "supplied" refers to the range covered by the supplied electrode while "option" is for alternative electrodes that are available for purchase.
Answered by: Application Engineer JM
Date published: 2021-06-08
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K=1 electrode replacement (Graphite type)
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K=10 Electrode (Platinum type)
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1413 µmho/cm conductivity solution, 1 quart
8 In Stock
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