Features:_x000D_ _x000D_ Made of high-quality materials, it is durable and practical. _x000D_ With LCD high-definition display and backlight function, it can easily cope with the night environment. _x000D_ Large capacity button battery with built-in 4 LR44 1.5V button battery for durability and easy replacement. _x000D_ The probe is replaceable and easy to replace and easy to use. _x000D_ Ergonomically designed for non-slip design on both sides of the product. _x000D_ This product has high precision and stable operation. It can measure the pH value of the solution and display the temperature of the liquid to be tested. It is widely used in industries, wastewater, agriculture, medicine, food, scientific research and environmental protection. _x000D_ _x000D_ Specifications:_x000D_ Condition: 100% Brand New_x000D_ Material: Plastic_x000D_ Conductivity measuring range: _x000D_ 0S-1999S_x000D_ 2.00mS~19.99ms_x000D_ TDS measuring range_x000D_ 0ppm~1999ppm_x000D_ 0ppt~19.99ppt_x000D_ Conductivity/TDS measurement error: 3NFS1digit_x000D_ Instrument Repeatability: 1s/0.01mS_x000D_ Solvent temperature compensation range: 0~60_x000D_ Temperature accuracy: 1_x000D_ Power Supply: Lr44 button type battery * 4 (Battery not included)_x000D_ Display: Large LCD segment type display_x000D_ Working temperature range: 0~50_x000D_ Size: approx. 75*55*28mm / 3*2.2*1.1in_x000D_ _x000D_ Package list:_x000D_ 1 * Water Quality Tester (Battery not included)_x000D_ 1 * Instruction Manual