5 In 1 Digital Water Tester Professional PH/TDS/EC/ORP/Temperature Tester Pen Waterproof Multi-Function Meter

Battery Included : No High-concerned chemical : None Is Smart Device : No Model Number : EZ-9910 With Backlight Or Not : Yes Display Type : DIGITAL Brand Name : JUANJUAN Origin : Mainland China Certification : None color : green Material : ABS Size : 183*37*37mm (7.2*1.5*1.5in) Display size : 33*24mm Working environment : 0 to 60.0 ° C (32.0-140 ° F) Power source : 3x1.5VLR44