Pool testers

Measure active oxygen and pH in one step with a compact tester that delivers precise readings from 0 to 10 mg/L for oxygen and a 6.8–8.2 scale for pH, ensuring balanced pool chemistry.

Portable Lovibond MD200 3‑in‑1 pool photometer delivers instant readings for free chlorine, pH and cyanuric acid with a simple color‑change strip system, making water balance checks fast and accurate.

The Blue Connect 4‑in‑1 Saltwater Pool Sensor delivers precise pH, chlorine, temperature and conductivity readings in a single compact unit, ensuring balanced chemistry for salt‑chlorine systems while simplifying maintenance with its durable, corrosion‑resistant construction.

The Apera Instruments Salt20 delivers precise salinity readings with a built‑in temperature sensor, offering ±1% accuracy and ±0.5 °C tolerance for reliable aquarium or pool monitoring in a compact, waterproof design.