Laser Tools Coolant Conductivity & TDS Tester - 9204
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Product Information
Full details
This guide is for mechanics, DIY enthusiasts, and anyone needing to test the purity and concentration of automotive coolants. The Laser Tools Coolant Conductivity & TDS Tester (9204) offers a quick and accurate way to measure electrical conductivity and Total Dissolved Solids (TDS) in coolant, helping to determine its condition and effectiveness. A key caveat is that this device specifically tests conductivity and TDS, not acidity or freeze point, for which separate testers are available.
All features
| Brand | Laser Tools |
|---|
Extended Product Information
FAQs
What is the difference between Conductivity (EC) and TDS?
Conductivity measures the ability of a liquid to conduct electricity, which is related to the concentration of dissolved ions. TDS measures the total amount of dissolved substances (like salts, minerals, and organic matter) in the liquid. For coolants, both indicate purity and the presence of contaminants or degradation products.
How do I know if my coolant needs replacing based on the readings?
Consult your vehicle's service manual or the coolant manufacturer's specifications for acceptable EC and TDS ranges. Generally, significantly elevated readings compared to new coolant or baseline specifications indicate degradation and the need for replacement.
Do I need to calibrate the tester?
While not explicitly detailed in the product description, conductivity and TDS meters typically require periodic calibration with standard solutions to maintain accuracy. Refer to the product manual for specific calibration instructions or contact Laser Tools support.
Can I use this tester for other liquids?
This tester is specifically designed and calibrated for automotive coolants. Using it for other liquids may produce inaccurate results or damage the device. For other testing needs, such as acidity or freeze point, specific testers are available.
What is the resolution of the temperature measurement?
The temperature measurement has a resolution of 0.1℃.
Is this device waterproof?
The product description states it is a 'Waterproof conductivity & Total Dissolved Solids (TDS) meter'. However, only the probe is designed for immersion. The main body of the device should be protected from excessive water exposure.
Where can I find testers for acidity or freeze point?
For acidity testing, please see Laser Part No. 9193. For antifreeze freeze point testing, please see Laser Part No. 3272.
Troubleshooting
Device does not turn on
Ensure the batteries are correctly installed and have sufficient charge. Check that the battery compartment cover is securely closed.
Inconsistent or erratic readings
Rinse the probe with clean water and ensure it is free from debris. Check the temperature of the liquid being tested, as extreme temperatures can affect readings. Recalibrate the device if possible, following manufacturer guidelines.
Display shows 'OL' or similar overload indication
The measured value exceeds the device's maximum range. This may indicate a critically failed coolant or severe contamination. Clean the probe and try again with a different sample if available.
Auto shut-off activates too quickly
This is a normal function to conserve battery. If you require longer measurement times, simply reactivate the device by pressing the power button.
Pros and Cons
Pros
- Provides two essential coolant purity metrics (EC & TDS) in one device.
- Accurate readings ensure reliable assessment of coolant condition.
- User-friendly design with included batteries for out-of-the-box use.
- Auto shut-off feature extends battery life.
- Compact and portable for easy storage and use in various environments.
Cons
- Does not measure freeze point or acidity; requires separate testers for a complete coolant analysis.
- Accuracy is stated as ±2% F.S., which may not be sufficient for highly specialized applications.
- Requires calibration for optimal accuracy (though not explicitly detailed, this is standard for such meters).
Setup, Compatibility & Care
Setup:
- Unpack the tester and ensure the protective cap is removed from the probe.
- Install the included 2x 1.5V AAA batteries into the battery compartment, observing correct polarity.
- The device is now ready for use.
Compatibility:
- This tester is designed for use with automotive coolants. It measures conductivity and TDS, which are key indicators of coolant quality. It is *not* suitable for testing pure water, drinking water, or other liquids unless specified by the manufacturer. For acidity or freeze point testing, please refer to Laser Part No. 9193 or 3272, respectively.
Care:
- After each use, rinse the probe thoroughly with clean water to remove any residue.
- Gently dry the probe with a soft cloth. Never use abrasive materials.
- Store the tester with the protective cap on the probe to prevent damage and contamination.
- Avoid submerging the entire device in liquid; it is designed for probe immersion only.
- Store in a cool, dry place away from direct sunlight.
- Replace batteries promptly when the display shows low battery indication.