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Handheld Resistivity and Conductivity Tester

Resistivity and Conductivity Tester


Item# CDH-93

 This item is available for quick shipping
Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $208.36
10-24 $197.94
25-49 $193.77
50-99 $185.44
100-199 $181.27
200+ $177.11

In stock

Lead Time ( If not in Stock): 2 weeks

Resistivity and Conductivity Tester CDH-93 CDH-93
  • Compact and Lightweight
  • Single Button Operation
  • Automatic Calibration
  • Easy Electrode Replacement
  • Dustproof and Waterproof NEMA 6 (IP57)
  • Large LCD
5 Year Warranty

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Measurement Type
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Product Specs

The CDH-93 resistivity and conductivity meter uses advanced automatic frequency conversion and booster technology to keep the electrode constant the same in different solution strengths. It can meet measuring accuracy in the whole range of this electrode by using only the one-point calibration function. The result is the high performance and the lowest cost.

    Conductivity: 5 to 50.0µ S/cm, 50 to 500µ S/cm, 0.5 to 5.00 mS/cm, 5.0 to 50.0 mS/cm
    Resistivity: 2 to 20 M?-cm
    TDS: 0 to 35.0 g/L
    Salinity: 0 to 25.0 ppt
    Temperature: 0 to 50°C (32 to 122°F)
    Conductivity/Resistivity: ±1.0% full scale temperature; ±0.5°C
ATC Range: 0 to 50°C (32 to 122°F)
Calibration: One-point calibration (1413µ S/cm)
Power: Two (2) CR2032 3V lithium ion batteries (included)
IP Standard: Waterproof and dustproof meets NEMA 6 (IP57) standard
Auto Power Off: After 10 minutes (override available)
    Meter: 148 L × 29 W × 14 mm D (5.82 x 1.14 x 0.55")
    Carrying Case: 168 L × 96 W × 28 mm D (6.61 x 3.78 x 1.10")
Weight with Case: 178 g (6.28 oz)

Rated 4 out of 5 by from Good Tool. Poor instructions. So-so support. This will be a good tool for the intended purposes. It is easy to use and appears accurate and durable, but the documentation that comes with it is very meager. I called with a few questions. One was answered other wasn't. Didn't receive a return call or a response to an online support question submitted as a follow up.
Date published: 2017-05-02
Rated 5 out of 5 by from Wire EDM I use this tester to verify my water conductivity for wire EDM it easy to use and fast
Date published: 2021-02-16
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Can you tell me the diameter of the probe head and the length of the 'neck' of the instrument? I want to know if this probe is suitable for the containers I intend to take measurements in.

Asked by: zcg6
Thank you for your inquiry! The diameter of the head is 10mm and the length of the neck is 30mm.
Answered by: Application Engineer JM
Date published: 2021-06-30

What is the resolution of the resistivity? Does it read at increments of 1 M ohms? 0.5 M ohms? What is the resolution of the conductivity?

Asked by: OV Tech
In regard to your inquiry, the CDH-93 hand held conductivity tester has a 3 digit display and the resolution will either be 0.1 or 0.01 depending on the microSiemen range.
Answered by: JC ENGR
Date published: 2020-12-25

My sample I need to test, should I dilute it? The product is 'syrup' thick.

Asked by: AnnaLynne
Thank you for your inquiry. Please contact our Flow Engineering department with this request as they will need some more information about your application before advising whether dilution is necessary. You can email them at flow@omega.com.
Answered by: AS Engineer
Date published: 2019-09-18

We have gotten resistivity readings below 2.0 (e.g. 0.5, 0.6, 1.6). Should we interpret those readings as less than 2.0 and not assume they are quantitative? 2. Our meter arrived with liquid in the electrode cap. What liquid should be in the cap?

Asked by: SangerK
Thank you for your inquiry. Yes, anything less than 2.0 will not be accurate or be within the accuracy and the storage solution is 3M KCl.
Answered by: JC ENGR
Date published: 2020-12-09

Hi! Is the minimum resistivity 2 ohms or 2M ohms?

Asked by: SHERRI
Hi, Thank you for your question. The minimum resistivity is 2 M ohms.
Answered by: Application Engineer HB
Date published: 2019-06-25

Is the unit suitable for use with solvents and fuels? If not, do you have ones that are?

Asked by: ER88
Thank you for your inquiry on this product. Please email our Flow Engineering Group at flow@omega.com and can advise on another product available.
Answered by: Applications Engineer JC
Date published: 2021-09-17

Hi. Our spec for resistivity is 2 M Ohm or greater. My question is, Does the meter just cut off and show no reading below 2MOhm? If it does read anything below 2M, does accuracy stay at 1% of full scale?

Asked by: Ed46
Than you your inquiry for this meter. Unfortunately, it will not be able read below 2M Ohm.
Answered by: JC ENGR
Date published: 2020-11-05

Do you sell a meter that can read 500 ohms to 20 Megohms?

Asked by: Satch
Thanks for you question. Omega doesn't have a product that goes to the ranges you have specified. please contact the flow department to see if they would have other options?
Answered by: application engineer je
Date published: 2020-02-27
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