เครื่องวัดความเป็นกรด-ด่าง วัดค่าpHได้อย่างต่อเนื่อง Digital pH Meter Tester Monitor Hydroponics Aquarium DescriptionThis New digital pH monitor is specially designed for Aquarium which can simultaneously measure pH level in water. This user friendly water quality monitor can also be used in Swimming Pool, Spa and Hydroponic purposes etc. This monitor is easy to use and install. With 2 FREE pH buffer (pH 4.003 and pH 6.864) solutions, you can easy calibrate of pH with just a mini-screw driver.Features 1 Meter (3.28 feet) reliable and stable cable from meter to sensor Built with Automatic Temperature Compensation (ATC) Easy to use with high accuracy Large LCD Display with 4 digits Easy calibration of pH with just a mini-screw driver (Detailed procedure of calibration is described in manual) Batteries and Calibration Solution (pH 4.003 & pH 6.864) includedSpecifications Measuring Range: 0.00 - 14.00 pH Resolution : 0.01 pH Accuracy : 0.1 pH Automatic Temperature Compensation (ATC) : 0 - 50 C (32 - 122 F) Operating Temperature : 0 - 50 C (32 - 122 F) Batteries: 4 x 1.5 V (AG13 Button Battery) (included) Dimensions : approx. 60 (L) x 55 (W) x 23 (D) mm (2.36 x 2.17 x 0.91 inch) Weight : approx. 75g One set included 1 x mini pH monitor with External Electrode 1 x protective cap for electrode 1 set of pH 4.003 and pH 6.864 Calibration Solutions (FREE) 1 x Mini Screwdriver 1 x Instruction Manual Standard factory package ***รับประกันสินค้า 3 เดือน