3 in 1 pH Meter Humidity Meter Light Meter Weltech (Shanghai) Co., Ltd. Base Info Model NO.:3in1Display:NeedlePortable:PortableAppliance:Food Analysis, BiochemistryCertification:CETrademark:OEMTransport Package:Color Box ,CartonSpecification:3in1Origin:China Description Pre:pH Transmitter, Orp Transmitter, pH Tester, Oxidation Reduction Potential Meter Next:The Hottest Medical Equipment Poct Veterinary Chemistry Analyzer