The Hanna HI9811-5 Portable pH/EC/TDS/Temperature Meter with HI1285-5 probe is a user-friendly, water-resistant device tailored for agriculture, greenhouse, and hydroponic applications. This 4-in-1 meter simplifies water quality monitoring with a combination probe that measures pH, conductivity (EC), TDS, and temperature—no probe changes required. Featuring easy single-point calibration, automatic temperature compensation, and an intuitive LCD with on-screen tutorials, it ensures fast and accurate results. The amplified pH sensor prevents electrical interference, making it ideal for use in noisy environments. Get your reliable and rugged HI9811-51 from Kamadi in Pakistan—your trusted source for precision water testing instruments.