Multifunction Water Quality Meter Waterproof PH Tester Disease Control Centers

Label:Yes Backlight: Yes Resolution :1ppm Power supply voltage :3v Battery supply: 2pcs 1.5V (LR44) (No included) Measurement accuracy :1ppm Weight: 40g Measurement range :0-9990ppm Size: 142*16*25mm(5.59*0.63*0.98in) Package Includes:1 pc Water Test Pen Display: LCD digital display Note: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee that the style is the same as shown in the pictures. 2. Allow 1-3mm(0.04-0.12in) error due to manual measurement and there will be different colors as different screens, please understand. Thank you