... of Origin: Shanghai China (Mainland) Brand Name: BiLon Model Number: DWS - 51 Product description:This instrument applies to universities, research institutes ... scope: 0 ~ 60 ° c,Error: basic electronic unit pNa 0.02 ± 1,Error: the stability of electronic units pNa 0 ... .02/3hInstrument error: 0.03 pNa repeatabilityAppearance: 200 * * * l 70mm (210 ...