Brand：
$203.00
SE
QIWEI ZYL portable residual chlorine meter residual chlorine concentration detection
0~5mg/L
$217.00
SE
QIWEI JPB-607A portable intelligent dissolved oxygen analyzer
Dissolved oxygenDissolved oxygen: (0.0~20.0) mg/L; temperature: (0~40) ℃
$271.00
SE
QIWEI SS-500B Portable Suspended Solids Tester
Accuracy 1mg/L, resolution 1mg/L, sexual repeability 3%, linear error +/- (5% FS), simple and convenient to use
$231.00
SE
QIWEI NS-1B Portable urea Detector, AC and DC dual-purpose type
0-10mg/L
Measurement range 0-10mg/L, resolution 0.1mg/L, sexual repeability ≤ 2%, error of indication +/- 5% FS +/- 1 word, suitable for indoor and outdoor swimming pool water quality testing and various water plants.
If you don't know how to choose "STIP-scan", please consult customer service.