AOLILONG PHB-3 Portable acidity meter Manual,OI

• 
  Qiwei PH-20B Pen Acidity Meter (Backlit)

  0.1~14.0pH±0.1PH0.1PH

  ¥180.0

  SE
• 
  AOLILONG PHB-3 (type 65-1) portable pH meter external type 65-1 electrode

  0~14.0pH±0.1ph0~80℃

  ¥310.0

  SE
• 
  Qiwei PH-20 pen pH meter pH range 0.1~ 14pH

  0.1~14pH±0.1pH1.5V battery (LR44) * 4PCS

  ¥170.0

  SE

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