5 in 1 Water Quality Tester

The 5‑in‑1 Water Quality Tester is a precision digital instrument designed for fast, accurate measurement of key water parameters in aquariums, hydroponic systems, and laboratory environments. With its backlit LCD display and multi‑function sensor probe, this compact pen provides instant readings for pH, TDS (Total Dissolved Solids), EC (Electrical Conductivity), SAL (Salinity), and TEMP (Temperature) — all in one device.

Built for reliability and ease of use, the tester features automatic temperature compensation (ATC) and a waterproof probe tip for consistent accuracy in varying conditions. The ergonomic design and clear backlight make it ideal for low‑light environments or quick spot checks during maintenance.

Technical Features

• Functions: Measures pH, TDS, EC, SAL, and TEMP

• Display: Large backlit LCD screen for easy reading

• Accuracy: ±0.01 pH / ±2% TDS / ±2% EC

• Temperature Range: 0–80°C with automatic compensation

• Power: Battery‑operated (standard AAA or button cell)

• Design: Portable pen‑style body with waterproof sensor tip

• Applications: Aquariums, hydroponics, drinking water, RO systems, pools, and labs

Technical Benefits

• All‑in‑one testing: Eliminates the need for multiple meters

• Backlight display: Easy to read in dim environments

• Fast calibration: Simple one‑button operation

• Durable build: Resistant to moisture and corrosion

• Accurate results: Ideal for monitoring aquarium stability and plant nutrient levels