Seachem pH Alert Sensor
pH Alert® is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly from yellow to orange to red alerting you to shifts in pH levels between 5.4 and 8.0. Freshwater use only.
- Continuously monitors pH in freshwater
- No tests or strips required
- Lasts 3-6 Months
- First response time in 30 mins!
Includes 1 sensor technology card (1.5" x 2.5")Show Less