Brand：
$293.00
SE
Qiwei JPB-605 desktop Dissolved Oxygen Meter
Dissolved oxygen (0~20) mg/L; temperature (0~40 ℃)
$217.00
SE
QIWEI JPB-607A portable intelligent dissolved oxygen analyzer
Dissolved oxygenDissolved oxygen: (0.0~20.0) mg/L; temperature: (0~40) ℃
$169.00
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QIWEI JPB-70A Pen Oxygen Dissolution Meter
Dissolved oxygen (0.0~20.0) mg/L; temperature (0~40 ℃)
If you don't know how to choose "STIP-scan", please consult customer service.