4 in 1 Multifunction PH Digital Water Tester Meter, Temp Monitor for Household Industry Hydrotherapy Hydroponics [...]

NIUNIU Made of high quality material, durable in use. Lightweight and mini size, portable to carry. Easy to operate and read the digits, convenient to use. Suitable for Water Sources, Aquariums, Hydroponics, Swimming Pools, RO system, Spa, and other water systems. Battery: 3*1.5V LR44 button battery No battery provided Delivery Quantity: 1pc, Package Contents: Only the above package contents, excluding other products. Size: 18.5x3.8cm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) color: red (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)