4-in-1 EC TDS Salinity Temperature Test Pen, Digital Water Quality Meter for Saltwater Aquariums (Battery not included)

1. This meter measures not only the salinity of table salt, saltwater pools, and koi ponds, but also the salinity of seawater, marine bodies of water, and saltwater aquariums. 2. The multi-parameter meter measures salinity, TDS, EC, and temperature of most common water solutions precisely, quickly, and reliably. 3. This dustproof water quality meter (IP67) measures temperature and features a data hold function to lock in the desired reading. 4. High performance, portable, ergonomic design, fast measurement, high stability, and good measurement consistency. 5. Compact size, lightweight, integrated temperature sensor, automatic temperature compensation (ATC), intelligent functions, and high accuracy.