Features: Experience precise ORP and conductivity measurements with our Backlit ORP Meter, featuring a convenient backlit display for easy data reading in any lighting condition. This portable water quality analyzers boasts automatic calibration function, ensuring accuracy with every use, and is crafted from sturdy plastic for stable performances. Ideal for water quality professional, environmental workers, and home users seek reliable testing tool. Perfect for diverse environment such as laboratories, aquariums, swimming pools, drinking water sources, and agricultural irrigation systems. Enhances your water analysis capabilities with this essential tool, produced to meet the needs of both experts and everyday users in maintaining excellent water conditions. Specifications: Component:Plastic Size:Approx.185x40mm/7.28x1.57inches Temperature Ranges:0-60°C/32-140°F ORP Ranges:0~1200mV Package Includes: 1Pc Backlit ORP Meter note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color. Thanks!