Seven parameters from a single probe simplifies pool maintenance.




7-in-1 Pool Water Quality Monitor with pH, ORP, TDS, Salinity & Temperature Testing | Smartphone App Compatible Meter | Lonoma
Keep Your Pool Crystal Clear with Lab-Grade Testing
Managing healthy water shouldn't mean guessing or endless test strips. This 7-in-1 electronic water analyzer delivers instant, accurate readings for pH, temperature, ORP (oxidation-reduction potential), electrical conductivity, total dissolved solids, salt concentration, and specific gravity—all from a single probe. The backlit digital display shows results in seconds, while automatic temperature compensation adjusts for changing conditions so you always get reliable data. Connect to the free mobile app via Bluetooth and watch live measurements, store historical logs, and receive alerts when any parameter drifts outside your target range. Perfect for residential pools, hot tubs, spas, fish tanks, and aquaculture systems, this portable tester fits in a toolkit or poolside caddy and runs on three LR44 batteries for cordless convenience season after season.

Why You Need This
- Seven Parameters, One Device: Measures pH, ORP, EC, TDS, salinity, specific gravity, and temperature simultaneously—no juggling multiple tools or strips.
- Smart App Integration: View real-time readings, track trends over time, and get instant notifications when values move out of range, all from your iOS or Android phone.
- Pinpoint Accuracy: Integrated automatic temperature compensation and high-precision sensors ensure consistent, laboratory-quality results every test.
- Fast, Easy Operation: Backlit LCD screen displays data in seconds; simple interface means no steep learning curve or confusing menus.
- Portable & Field-Ready: Lightweight design (about 0.21 lb) and durable body let you test anywhere—poolside, greenhouse, or on the go—without worrying about drops or splashes.
Built for Everyday Pool Care
Whether you're balancing chlorine levels before a family swim or checking salt concentration in your hot tub, this compact monitor makes water chemistry simple. The probe-only design keeps the electronics safe and dry while you collect samples, and the sturdy housing withstands daily handling. Powered by three widely available 1.5 V LR44 batteries, it's always ready when you are—no charging cables or outlets required. Regular calibration (easy to do with the app's step-by-step guide) maintains peak accuracy, so you can trust your data week after week. We ship free across the United States, and if your results don't meet expectations, our 30-day return policy has you covered.
Free shipping on every order, with no minimum purchase.
Every order is carefully packed and shipped with full tracking, so you always know where your package is.
Order today and we'll ship it out the next business day.
Not quite right? You have 30 days to send it back, no questions asked.
We also back every product with a 2-year warranty against manufacturing defects, because we stand behind what we sell.
Choose options
What Our Customers Say
Discover what makes LONOMA special.
The backlit LCD makes readings easy to check even in low light.
Automatic temperature compensation ensures accurate pH and ORP data every time.
Bluetooth app integration lets you track salinity and TDS trends over weeks without writing anything down.
Testing electrical conductivity and specific gravity simultaneously saves time when balancing hot tub chemistry.
The lightweight design and durable housing mean you can carry this meter poolside or toss it in a toolkit without worrying about drops or splashes.
Instead of fumbling with test strips, this portable analyzer delivers lab-grade results in seconds, powered by three LR44 batteries so there's no outlet hunting or cable clutter.
Your Outdoor Space, Day After Day
From morning coffee on the balcony to dinner by lantern light. See how it brings your patio to life.
Wrapped by hand, sent to your door
Every piece is checked, carefully packed and shipped with full tracking, so it arrives exactly the way it should.
- Quality checked Inspected before it leaves
- Packed to protect Extra padding for a safe arrival
- Free tracked shipping Follow your package every step of the way