HM Digital TDS-4TMA Aquarium TDS Meter with Digital Thermometer portable water purifier Top features include:

Top features include:

ideal for field technicians and commercial use

indicated by a blinking ‘x10’ image

calibration sleeve

HM Digital TDS-4TMA Aquarium TDS Meter with Digital Thermometer portable water purifier Top features include:The TDS 4TMA handheld meter is ideal for testing TDS and salt levels of freshwater aquariums and ponds. It can also be used for testing water filtration and purification systems, such as RO and DI, to know when to changes filters and membranes. FEATURES Measures TDS and salt levels of freshwater up to 9990 ppm. Includes an internal digital thermometer (celsius only). Hold Function Locks the reading on the screen outside of the water. Auto off function