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Smart water monitoring for hot tubs and swim spas
EVVO Sense monitors pH, ORP and water temperature in hot tubs and swim spas around the clock. It is installed in the spa’s circulation pipework and sends readings to the EVVO app and professional dashboard over Wi-Fi.
Why spa water needs watching more than pool water
A hot tub holds a fraction of the water of a pool, at a much higher temperature, with several people in it at once. Its water can go from fine to problematic within a day.
Small volume
Every bather, every dose of chemicals and every rain shower changes the water far more than in a pool.
High temperature
Warm water uses up sanitiser quickly and gives bacteria the conditions they like.
Tested too rarely
Many owners test only when the water already looks cloudy or smells. Continuous monitoring catches the change first.
Built for the equipment bay. A hot tub cabinet packs pump, heater and electronics into a small space – a noisy place for an analogue probe. The EVVO digital probe converts its signal inside the probe, so the readings stay clean.
For hot tub and swim spa dealers
EVVO Sense turns a one-off hot tub sale into a lasting customer relationship.
- Sell it with every new hot tub or swim spa, or retrofit it at a service visit
- Your shop’s website and support button sit inside your customer’s app
- See which customer tubs need attention on the professional dashboard
- Offer monitoring and water-care services at a price you set
Installed in the equipment area
The probe fits into the circulation pipework under the cabinet, and the hub mounts nearby. Nothing floats in the water and nothing needs to be removed when the cover goes on.
- Fit the probe in the circulation lineA tee fitting in the spa’s pipework.
- Mount and power the hubInside or next to the equipment bay, powered through a 5 V supply.
- Connect in the appBluetooth setup, then Wi-Fi – about two minutes.
Hot tub partnerships are separate. EVVO evaluates hot tub and swim spa partnerships separately from swimming pool partnerships. A pool partner in your country does not mean the hot tub category is taken – contact EVVO to check availability for your market.
Hot tub and swim spa questions
Can EVVO Sense be fitted to an existing hot tub?
Yes. The probe goes into the existing circulation pipework, so it can be retrofitted during a service visit as well as installed in new tubs.
Does it work in swim spas?
Yes. EVVO Sense monitors swim spas the same way as hot tubs: pH, ORP and temperature from the circulation system.
What does the hot tub owner see?
The EVVO app shows the water status, the three readings, alerts and history – plus a direct link to the dealer who installed it.
Can a dealer follow all customer hot tubs?
Yes, with the EVVO professional dashboard, which shows every connected installation on one screen.