Calibration Kit

Name: Calibration Kit
Brand: iopool
SKU: CAL-KIT-WAT-V1
Price: 18.0 CAD
Availability: InStock

$18.00

$18.00 ~~$22.00~~

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As this item is shipped from the United States, there is a risk of additional customs charges at the buyer's expense if it’s delivered to Canada.

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Keep Your EcO pH & ORP Measurements Reliable

The iopool EcO Calibration Kit contains three reference solutions designed to calibrate the pH and ORP sensors of your EcO smart pool and spa monitor.

Over time, sensor readings can drift. Calibration helps your EcO adjust its measurements against known reference values, supporting more consistent water monitoring and maintenance recommendations in the iopool app.

This kit is a maintenance accessory for existing EcO owners. It is not a pool water test kit, a chemical treatment, or a replacement monitor.

What Does the Calibration Kit Do?

The kit uses two pH reference solutions and one ORP (oxidation-reduction potential) solution to help recalibrate your EcO sensors.

Calibration can compensate for normal sensor drift. However, it cannot repair damaged or worn-out sensors.

Compatibility & Requirements

The kit is designed for the pH and ORP sensors of the iopool EcO smart water monitor.

The US iopool range includes:

EcO Start + Connect – for compatible non-saltwater pool and spa treatments.
EcO Start SALT + Connect – for saltwater pools and spas.

Both EcO configurations monitor pH and ORP. If you own an older EcO or are unsure of your monitor generation (V1/V2), confirm compatibility with iopool support before ordering.

To perform calibration, you need:

Your EcO monitor and the iopool mobile app.
A smartphone with Bluetooth and an active internet connection (Wi-Fi or cellular data).
Clean water for rinsing the sensors.
Three clean, narrow containers, or the calibration solution sachets.

Keep your smartphone close to EcO throughout the procedure.

A cOnnect Wi-Fi gateway is not required for calibration. You can use this kit without purchasing another EcO Start Pack.

When Should You Calibrate Your EcO?

First use: No calibration is necessary. EcO is calibrated before delivery.
From the second season: Calibrate at the beginning of each swimming season.
Year-round use: Annual calibration is recommended for indoor pools, hot tubs, and spas operating throughout the year.
Unexpected readings: Calibration may help correct sensor drift when recommended by iopool support.

What's Included?

The kit contains three calibration solutions:

1 × pH 4.00 reference solution – 20 mL (0.7 US fl oz).
1 × pH 7.00 reference solution – 20 mL (0.7 US fl oz).
1 × ORP +468 mV reference solution – 20 mL (0.7 US fl oz).

Total volume: 60 mL (approximately 2.0 US fl oz).

These solutions are for sensor calibration only. Never pour them into your pool or spa.

How to Calibrate Your EcO

Remove EcO from the water, take off the silicone cap, and rinse the sensors with clean water.
Prepare three clean, narrow containers for the reference solutions, or use the individual sachets as described in the guide.
Enable Bluetooth and internet access on your smartphone. Keep it close to EcO.
Open the iopool app and navigate to My Pool/Spa > Devices > EcO > Calibrate My EcO. Follow the instructions and rinse the sensors between solutions to avoid contamination.
Once calibration is complete, return the silicone cap to the analysis position and place EcO back in your pool or spa.

For illustrated instructions, see the official EcO calibration guide.

Key Specifications

Product type: EcO sensor calibration consumable.
Calibration values: pH 4.00, pH 7.00, ORP +468 mV.
Solution volume: 3 × 20 mL.
Calibration method: Guided through the iopool app via Bluetooth.
Not intended for: Temperature calibration, salinity measurement, or direct pool water testing.

Use each solution immediately after opening. Do not reuse or store previously used solutions.

Frequently Asked Questions

Does a new EcO need calibration?

No. Calibration is recommended from the second season onward, or annually for continuous year-round use.

Do I need the cOnnect gateway to calibrate EcO?

No. Calibration uses Bluetooth and the iopool app on your smartphone, with an active internet connection.

Can I reuse the calibration solutions?

No. Use fresh solutions for each calibration session to avoid contamination and unreliable reference values.

Can calibration fix inaccurate readings or damaged sensors?

Calibration may correct sensor drift, but it cannot repair damaged or worn-out sensors. If readings remain inconsistent, contact the iopool Help Center for troubleshooting before considering replacement parts.

Calibration test

IO water calibration test was simple and easy to do.

Hi Jim,

Happy to read that the calibration test was simple and easy to complete.

It's ok. I had issues.

Following the steps outlined in the app, I constantly had issues and had to close out the app and start over several times. My phone is basically a potato. So, it may have been my phone. Overall it took me about 90 minutes to complete both the pH and ORP calibration. However, even after calibrating the pH, it reads about 0.5 low when comparing to my Taylor kit. It isn't a huge issue and still use the eco sensor to do quick checks to see what the pool is doing and just understand that I need to add 0.5 to whatever the eco reads to get my true pH level. ORP always reads low after calibration, but my CYA is a bit too high and that may be throwing that off. Once again I still use the eco to do quick checks and verify with my Taylor kit.

Hi Catfish Billy,

We are sorry that the calibration process was not as smooth as expected and that you had to restart the app several times. If the pH gap remains consistent, our support team can help check whether a pH adjustment or further calibration review is needed.

Calibration Kit

It would not calibrate the PH portion of the kit.
I tried numerus times and I could only get the ORP to calibrate.

Hi David,

For this type of calibration issue, we recommend first removing the probe from the app and adding it again, then performing a magnet reset (simply pass a magnet over the top of the probe until you hear a beep), then try the calibration again.

This usually resolves most calibration issues with our calibration kits 😌

A Company that stands behind their products

Had an ORP sensor that was giving bad data. The folks at Iopool worked with me to get it straightened out and quickly! Thank you to all the incredible people at Iopool!

Hi Richard,

We’re really happy we could sort out the ORP sensor readings quickly for you !

If you ever need a hand again (calibration, setup or anything else), just give us a shout. 😉

Love my iopool!!

I have had my chlorine iopool minitor for 3 summers and am just now needing to do a collaboration kit test. I will forever use iopool with all my pools! Great Job guys in making a tool that is so practical, easy to use and proficient!

Hi Naomi,

Thank you so much for your wonderful feedback! We’re thrilled to hear that your iopool monitor has been a reliable companion for 3 summers and that the calibration kit is helping you keep everything running smoothly. Knowing you’ll continue using iopool with all your pools really means a lot to us.

Wishing you many more seasons of crystal-clear water!