- Pocket pH Tester Pen Type Water Proof LUTRON Taiwan Model : Ph-222, Range : 0-14 phwith ATC, Auto Cal, LCD with 2 Display & Bar Graph, Data Hold, 100 Points Data Logger
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- Digital Ph Meter Portable, HAND HELD, LUTRON, TAIWAN, Model PH-201 withEpoxy Body Electrode, Accuracy : 0.01pH
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- Digital Portable pH / mv / Temperature Meter, LUTRON, TAIWAN MakeModel PH - 206, 31/2, Display, Range : pH : 0 to 14 x 0.01, mv : 0.1999, Temp : 0-100C
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- Digital Ph Meter Portable, HAND HELD, LUTRON, TAIWAN, Model PH-207 Microprocessor Based, Range : 0.00 to 14.00 ph, 0 to 1, 999 mV, o to 65O C., LCD with Annuciator, ATC Manual Temp, Adj, Max-Min Memory & RS-232 Interface
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- Digital Ph Meter Portable, HAND HELD, LUTRON, TAIWAN 0.00 to 14.00 ph, o to 1, 999 mV, Manual Temp, Compansation, Data Hold, Record & RS-232
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- Ph / Temp Pocket Tester (2 in 1), HM Korea Make, Model : Ph-100 Water ProofPh Range : 0-14pH, Acc-0.02pH, ATC, Ph with Fine Tune, Digital Cal by Push Button
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- TDS METER HM KOREA Make, with Temperature & Hold Function Range : 0-9990 pp(Resolution : 1 ppm for 0.999 ppm & 10 ppm for 1000 to 9990 ppm), 3 Buttom Operation, Calibration by Push Button, ATC, Data Hold
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- EC / TDS / Temp Tester (3 in 1), HM Korea Make Model : COM-100 Water ProofEC Range : 0-999 uS, TDS Range : 0-8560 ppm (mg / l), Dig Cal, By Push Button, ATC, Hold & Auto Off, Temp : 0 to 80C (32-150F)
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- Digital Portable Ph Meter PICCOLO PLUS (Pen Type with ATC) HANNA MakeRange : 1.00 to 13.00 ph & 0.0 C to 70.0C
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- Digital Portable Ph Mete Model : HI - 8424 (pH / mV / C) HANNA MakeRange : 0.00 to 14.00 pH, 1, 999 mV, 0.0C to 100.0C
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- Digital Conductivity Meter Lutron Taiwan Model : CD-4302 (Portable), Range : 1, 990 mS & 19.99 mS with ATC
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- Pure Water Tester Digital Model : WA - 300, Range : 0 - 1, 999 us LUTRON TAIWAN
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- Pocket Pure Water Tester Pen Type - Water Resistance, Model : PWA - 301, Range : 0 to 1, 990 uS, Hold Record, & Max-Min.
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- Digital Portable Chlorine Meter LUTRON Taiwan Make Model : CL - 2006Range : 0.00 - 3.50 ppm (mg/l) Free & total Chlorine, data Hold, Memory for Max / Min, Value
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- DIGITAL SPECIFIC GRAVITY + SALINITY METER + Temperature Meter, Model DSG - 10Range : Specific Gravity : 1.000 - 1.030, Salinity (PPT) : 5 ppt to 40 ppt, Temp : 0C - 100C
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- DIGITAL SALINITY + TDS + Temperature Meter, Model : HDS 1024, Imported MakeRange : Salinity : 0.00 - 5.00 % Salt, TDS : 0-999 ppm mg/L, Temperature : 0C to 100C
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- Pocket Salinity Tester Pen Type - Water Resistance, Model No : PSA-311, Range : 0 to 1990 uS, Hold, Record, & Max-Min
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- Portable ORP Meter, Lutron Taiwan, Model ORP - 203, with ORP - 14 Electrode.
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