The Apera Instruments EC20 tester is simply the most reliable conductivity (EC) tester with the best value for all kinds of regular EC testing, such as hydroponics, education, tap/drinking water, swimming pool, water treatment, etc. Up to 2 points of Auto Calibration with buffer recognition and 0 to 50˚C Auto Temperature Compensation (ATC), ±1% F.S, 0.5˚C accuracy with measuring range of 0-200.0 µS/cm, 0-2000 µS/cm, 0-20.00 mS/cm, 0-50.0˚C.
The BPB (Brush-Resistant Platinum Black) sensor adopts our special processing technology, which minimizes electrode polarization, expands measuring range, and increases the firmness of the electrode, hence ensuring a much higher accuracy and consistency in a wide-range EC measurement than traditional stainless steel electrodes, and is easy to clean.
Large clear 180˚ viewing angle screen with temp./EC value dual display and indications of completed auto calibrations and stable readings. Great functions to make your testing experience a lot easier: 3-point auto calibration with auto buffer recognition, 0 to 50˚C auto temp. compensation. Self-diagnosis with out-of-range and low battery warning, and incorrect calibration reminder.
Complete kit with calibration solutions, AAA batteries, and a lanyard all in a portable carrying case. IP67 waterproof and dustproof, floats on water so no need to worry if it falls into the water by accident. 1000 hours' continuous operation powered by AAA batteries (with low power warning and auto power off in 8 min if no operation).
Meter's Technical Specs |
||
Conductivity |
Range |
0 to 200.0 μS/cm, 0 to 2000 μS/cm, 0 to 20.00 mS/cm |
Resolution |
0.1/1 μS/cm, 0.01 mS/cm |
|
Accuracy |
±1% F.S |
|
Calibration Points |
Automatic 1 to 2 points |
|
Temperature Compensation |
Auto Temperature Compensation 0 to 50°C (32 to 122°F) |
|
Temp. |
Range |
0 to 50°C (32 to 122°F) |
Resolution |
0.1°C |
|
Accuracy |
±0.5°C |
|
LCD |
180° Viewing Angle LCD |
|
Stable Reading Indication |
Smiley Face icon |
|
Low-Battery Warning |
Battery icon flashing, reminder of battery replacement |
|
Self-Diagnosis |
Yes |
|
Heads-Up Function |
No |
|
Auto. Power-Off |
Yes, auto power-off in 8 minutes without operation |
|
Waterproof Rating |
IP67; Floatable |
|
Power |
DC3V, AAA batteries*4 |
|
Battery Life |
Continuous operation up to 1000 hours |
|
Dimensions& Weight |
Tester: (40*31*178) mm/ 107g With case_(190*165*40) mm/ 438g |
|
Electrode's Technical Specs |
||
Application |
Regular water solution testing, such as pools and spas, hydroponics, tap water, drinking water, water treatment, waste water treatment, aquaculture, etc. |
|
Type of Sensor |
BPB (Brush-Resistant Platinum Black) |
|
Replaceable |
No |
|
Temperature sensor |
Yes |
|
Range |
0.1 μS to 20.00 mS |
|
Temperature Range |
0 to 50°C (32 to 122°F) |
Based On 6 reviews.
When growing in soil, it wasn’t a big deal to measure amounts to feed by ounces per gallon, use a color chart to check PH, etc. grams per litre, etc. There’s a better chance to catch and correct a mistake made in a soil grow. There’s a very little window of time, if any, to correct hydro grow mistakes. It’s much more important to measure precisely. I choose APERA for the necessary tools to measure concisely and consistently. Compared to most other brands, especially those that are less expensive, APERA probes have a bigger LCD that displays more info in larger characters that are easier to read. Each of my APERA probes came in a case that holds a complete kit including precalibrated solutions. Being able to precisely measure has given me increased confidence and has helped prevent a couple of growing disasters. Highly recommended.
This Apera Instruments EC20 Value Conductivity tester is simple to use, and it read my drinking water within a few seconds. I followed the instructions to calibrate out of the box, using the 1 point calibration only, w the 1413 microsiemens/cm calibration fluid as shown, and i got a reading of 1427, which was accurate enough for my home purposes. I tested my filtered water, and it read 0.05 millisiemens/cm, which I compared to the readings of the same water from my TDS meter, and found my TDS meter to be fairly close as well, reading 22 ppm (0.05 millisiemens/cm converts to 25ppm on its 500 scale -I used a conversion calculator online). I'm pretty happy w this device, and it gives me some peace of mind w my drinking water. It is built well, comes with a nice lanyard to hang around your neck if you are measuring frequently for your job, and the protective box w handle and snap lid is very convenient for keeping all your solutions together w the tester.
let me start by saying i have several of the Oakton testers for PH, EC, and TDS. with that in mind this unit is just as easy to use, pulls readings in line with the more expensive units i have, and stays calibrated quite well as long as you are maintaining it properly. In all for the price point this is a good quality tester. Do yourself a favor and use storage solution when not using the unit this will maintain your calibration long term but always have calibration solution on hand for checking after long term storage or timely checks for accuracy.
This is my 3rd Apera tester...all have worked flawless to date…I use this to determine saline content of water to properly calibrate water softeners…instructions and tables are well done…I calibrated as per the instructions...and tested against a better reference tester, and it was within .2%... superb. nice instrument...
This is awesome! It allows me to test the water I am drinking and to ensure I choose the clean water
Bought a pH and E.C matching meters. The pH works flawlessly; However, I could not calibrate the E.C meter to save my life. It was off in the lower calibration point, and way way off in the high calibration point. Shipping was fast, return smooth, I guess I got the black sheep of the lot.
We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of charge, at the option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to the responsibility of APERA INSTRUMENTS, LLC for a period of TWO YEARS for the instrument and SIX MONTHS for the probe from the delivery.
This limited warranty does NOT cover any issues due to:
The Apera Instruments EC20 tester is simply the most reliable conductivity (EC) tester with the best value for all kinds of regular EC testing, such as hydroponics, education, tap/drinking water, swimming pool, water treatment, etc. Up to 2 points of Auto Calibration with buffer recognition and 0 to 50˚C Auto Temperature Compensation (ATC), ±1% F.S, 0.5˚C accuracy with measuring range of 0-200.0 µS/cm, 0-2000 µS/cm, 0-20.00 mS/cm, 0-50.0˚C.
The BPB (Brush-Resistant Platinum Black) sensor adopts our special processing technology, which minimizes electrode polarization, expands measuring range, and increases the firmness of the electrode, hence ensuring a much higher accuracy and consistency in a wide-range EC measurement than traditional stainless steel electrodes, and is easy to clean.
Large clear 180˚ viewing angle screen with temp./EC value dual display and indications of completed auto calibrations and stable readings. Great functions to make your testing experience a lot easier: 3-point auto calibration with auto buffer recognition, 0 to 50˚C auto temp. compensation. Self-diagnosis with out-of-range and low battery warning, and incorrect calibration reminder.
Complete kit with calibration solutions, AAA batteries, and a lanyard all in a portable carrying case. IP67 waterproof and dustproof, floats on water so no need to worry if it falls into the water by accident. 1000 hours' continuous operation powered by AAA batteries (with low power warning and auto power off in 8 min if no operation).
Meter's Technical Specs |
||
Conductivity |
Range |
0 to 200.0 μS/cm, 0 to 2000 μS/cm, 0 to 20.00 mS/cm |
Resolution |
0.1/1 μS/cm, 0.01 mS/cm |
|
Accuracy |
±1% F.S |
|
Calibration Points |
Automatic 1 to 2 points |
|
Temperature Compensation |
Auto Temperature Compensation 0 to 50°C (32 to 122°F) |
|
Temp. |
Range |
0 to 50°C (32 to 122°F) |
Resolution |
0.1°C |
|
Accuracy |
±0.5°C |
|
LCD |
180° Viewing Angle LCD |
|
Stable Reading Indication |
Smiley Face icon |
|
Low-Battery Warning |
Battery icon flashing, reminder of battery replacement |
|
Self-Diagnosis |
Yes |
|
Heads-Up Function |
No |
|
Auto. Power-Off |
Yes, auto power-off in 8 minutes without operation |
|
Waterproof Rating |
IP67; Floatable |
|
Power |
DC3V, AAA batteries*4 |
|
Battery Life |
Continuous operation up to 1000 hours |
|
Dimensions& Weight |
Tester: (40*31*178) mm/ 107g With case_(190*165*40) mm/ 438g |
|
Electrode's Technical Specs |
||
Application |
Regular water solution testing, such as pools and spas, hydroponics, tap water, drinking water, water treatment, waste water treatment, aquaculture, etc. |
|
Type of Sensor |
BPB (Brush-Resistant Platinum Black) |
|
Replaceable |
No |
|
Temperature sensor |
Yes |
|
Range |
0.1 μS to 20.00 mS |
|
Temperature Range |
0 to 50°C (32 to 122°F) |
Meter's Technical Specs |
||
Conductivity |
Range |
0 to 200.0 μS/cm, 0 to 2000 μS/cm, 0 to 20.00 mS/cm |
Resolution |
0.1/1 μS/cm, 0.01 mS/cm |
|
Accuracy |
±1% F.S |
|
Calibration Points |
Automatic 1 to 2 points |
|
Temperature Compensation |
Auto Temperature Compensation 0 to 50°C (32 to 122°F) |
|
Temp. |
Range |
0 to 50°C (32 to 122°F) |
Resolution |
0.1°C |
|
Accuracy |
±0.5°C |
|
LCD |
180° Viewing Angle LCD |
|
Stable Reading Indication |
Smiley Face icon |
|
Low-Battery Warning |
Battery icon flashing, reminder of battery replacement |
|
Self-Diagnosis |
Yes |
|
Heads-Up Function |
No |
|
Auto. Power-Off |
Yes, auto power-off in 8 minutes without operation |
|
Waterproof Rating |
IP67; Floatable |
|
Power |
DC3V, AAA batteries*4 |
|
Battery Life |
Continuous operation up to 1000 hours |
|
Dimensions& Weight |
Tester: (40*31*178) mm/ 107g With case_(190*165*40) mm/ 438g |
|
Electrode's Technical Specs |
||
Application |
Regular water solution testing, such as pools and spas, hydroponics, tap water, drinking water, water treatment, waste water treatment, aquaculture, etc. |
|
Type of Sensor |
BPB (Brush-Resistant Platinum Black) |
|
Replaceable |
No |
|
Temperature sensor |
Yes |
|
Range |
0.1 μS to 20.00 mS |
|
Temperature Range |
0 to 50°C (32 to 122°F) |
Meter's Technical Specs |
||
Conductivity |
Range |
0 to 200.0 μS/cm, 0 to 2000 μS/cm, 0 to 20.00 mS/cm |
Resolution |
0.1/1 μS/cm, 0.01 mS/cm |
|
Accuracy |
±1% F.S |
|
Calibration Points |
Automatic 1 to 2 points |
|
Temperature Compensation |
Auto Temperature Compensation 0 to 50°C (32 to 122°F) |
|
Temp. |
Range |
0 to 50°C (32 to 122°F) |
Resolution |
0.1°C |
|
Accuracy |
±0.5°C |
|
LCD |
180° Viewing Angle LCD |
|
Stable Reading Indication |
Smiley Face icon |
|
Low-Battery Warning |
Battery icon flashing, reminder of battery replacement |
|
Self-Diagnosis |
Yes |
|
Heads-Up Function |
No |
|
Auto. Power-Off |
Yes, auto power-off in 8 minutes without operation |
|
Waterproof Rating |
IP67; Floatable |
|
Power |
DC3V, AAA batteries*4 |
|
Battery Life |
Continuous operation up to 1000 hours |
|
Dimensions& Weight |
Tester: (40*31*178) mm/ 107g With case_(190*165*40) mm/ 438g |
|
Electrode's Technical Specs |
||
Application |
Regular water solution testing, such as pools and spas, hydroponics, tap water, drinking water, water treatment, waste water treatment, aquaculture, etc. |
|
Type of Sensor |
BPB (Brush-Resistant Platinum Black) |
|
Replaceable |
No |
|
Temperature sensor |
Yes |
|
Range |
0.1 μS to 20.00 mS |
|
Temperature Range |
0 to 50°C (32 to 122°F) |
Compatibility
Based On 6 reviews.
When growing in soil, it wasn’t a big deal to measure amounts to feed by ounces per gallon, use a color chart to check PH, etc. grams per litre, etc. There’s a better chance to catch and correct a mistake made in a soil grow. There’s a very little window of time, if any, to correct hydro grow mistakes. It’s much more important to measure precisely. I choose APERA for the necessary tools to measure concisely and consistently. Compared to most other brands, especially those that are less expensive, APERA probes have a bigger LCD that displays more info in larger characters that are easier to read. Each of my APERA probes came in a case that holds a complete kit including precalibrated solutions. Being able to precisely measure has given me increased confidence and has helped prevent a couple of growing disasters. Highly recommended.
This Apera Instruments EC20 Value Conductivity tester is simple to use, and it read my drinking water within a few seconds. I followed the instructions to calibrate out of the box, using the 1 point calibration only, w the 1413 microsiemens/cm calibration fluid as shown, and i got a reading of 1427, which was accurate enough for my home purposes. I tested my filtered water, and it read 0.05 millisiemens/cm, which I compared to the readings of the same water from my TDS meter, and found my TDS meter to be fairly close as well, reading 22 ppm (0.05 millisiemens/cm converts to 25ppm on its 500 scale -I used a conversion calculator online). I'm pretty happy w this device, and it gives me some peace of mind w my drinking water. It is built well, comes with a nice lanyard to hang around your neck if you are measuring frequently for your job, and the protective box w handle and snap lid is very convenient for keeping all your solutions together w the tester.
let me start by saying i have several of the Oakton testers for PH, EC, and TDS. with that in mind this unit is just as easy to use, pulls readings in line with the more expensive units i have, and stays calibrated quite well as long as you are maintaining it properly. In all for the price point this is a good quality tester. Do yourself a favor and use storage solution when not using the unit this will maintain your calibration long term but always have calibration solution on hand for checking after long term storage or timely checks for accuracy.
This is my 3rd Apera tester...all have worked flawless to date…I use this to determine saline content of water to properly calibrate water softeners…instructions and tables are well done…I calibrated as per the instructions...and tested against a better reference tester, and it was within .2%... superb. nice instrument...
This is awesome! It allows me to test the water I am drinking and to ensure I choose the clean water
Bought a pH and E.C matching meters. The pH works flawlessly; However, I could not calibrate the E.C meter to save my life. It was off in the lower calibration point, and way way off in the high calibration point. Shipping was fast, return smooth, I guess I got the black sheep of the lot.
We warrant this instrument to be free from defects in material and workmanship and agree to repair or replace free of charge, at the option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to the responsibility of APERA INSTRUMENTS, LLC for a period of TWO YEARS for the instrument and SIX MONTHS for the probe from the delivery.
This limited warranty does NOT cover any issues due to: