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1,200+ results for orp tester

Portable 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter Tester
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Brand New
S$ 36.57
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meinianda (450) 96.7%
Free International Shipping
from China
Water Quality Meter Tester Tool Backlight PH/TDS/EC/ORP/TEMP/SG/Salinity
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Brand New
S$ 33.49
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or Best Offer
18_e0lljw (6,054) 90.9%
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from China
Free returns
4 watchers
7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen
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Brand New
S$ 41.63
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meinianda (450) 96.7%
Free International Shipping
from China
ORP-169 Portable Water Quality Monitor Digital ORP Tester Pen Water ORP Meter
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Brand New
S$ 31.05
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homegooparts (11,224) 98.5%
+S$ 1.09 postage
from China
Multi Parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP 8 In 1 R LLI
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Brand New
S$ 132.67
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or Best Offer
lanyydi.living (434) 98.2%
+S$ 1.46 postage
from China
Waterproof-pH-ORP-C-Combo-Tester-Meter with Automatic Calibration
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Brand New
S$ 230.27
anatek_electronics (1,361) 100%
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+S$ 41.15 postage
from United States
2in1 / 4in1 Portable Tem H2 Orp Ph Meter Dissolved Hydrogen Water Quality Tester
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Brand New
S$ 26.08 to S$ 27.41
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Was: S$ 28.04 7% off
modulefans (115,412) 99.1%
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+S$ 5.17 postage
from China
8 in 1 Water Quality Tester PH/ORP/EC/SAL Fish Tank Aquariums Online Monitoring
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Brand New
S$ 178.66
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apple*2012 (2,624) 98.7%
Free International Shipping
from China
6 In 1 Digital Water Quality Tester TDS EC PH ORP Chlorine Temp Meter Detector
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Brand New
S$ 101.56
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or Best Offer
sun9rise (1,275) 98.2%
Free International Shipping
from China
169E ORP Tester Waterproof Meter Sources Aquarium Hydroponics Spas Swimming Pool
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Brand New
S$ 66.02
Top-rated sellerTop-rated seller
Was: S$ 76.77 14% off
businessleader-0 (988) 100%
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Free International Shipping
from China
PH / ORP Controller with pH Meter Redox Temp Tester App Remote Online Monitoring
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Brand New
S$ 168.31
gxproducts (17,408) 100%
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Free International Shipping
from Hong Kong
7in1 Multi-Parameter Water Quality Test Meter PH ORP EC TDS PPM CF TEMP Tester
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Brand New
S$ 116.96
Top-rated sellerTop-rated seller
Was: S$ 125.76 7% off
19smileday (729) 97%
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Free International Shipping
from China
Digital LCD PH/TDS/EC/ORP/TEMP/Salinity Water Quality Tester Meter Pen Detector
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Brand New
S$ 28.01 to S$ 49.57
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cowramill (5,253) 98.5%
+S$ 5.89 postage
from China
Smart Monitor Fish Tank WIFI SPA Pool Water Quality Meter PH ORP EC PPM Tester
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Brand New
S$ 114.70 to S$ 115.60
Top-rated sellerTop-rated seller
Was: S$ 132.88 13% off
llucky666 (796) 98.4%
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+S$ 14.75 postage
from China
17+ watchers
Apera Instruments PCO60-Z Bluetooth pH
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Brand New
S$ 295.31
donkfella (239) 100%
or Best Offer
+S$ 111.38 postage
from United States
Aquarium Digital ORP Meter Water Quality Analyzer Monitor 220V with -1999~1999mV
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Brand New
S$ 76.77
vtsyiqi (149) 94.1%
Was: S$ 85.30 10% off
or Best Offer
+S$ 19.18 postage
from China
2 watchers
Digital LCD Mini ORP Meter Tester Aquarium Water Quality Analyzer 220V
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Brand New
S$ 66.45
eriba-984 (257) 90.5%
or Best Offer
Free International Shipping
from China
Water Quality Tester SG PH EC SALT ORP TDS CF TEMP 24 Hour Monitor US 100V‑110V
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Brand New
S$ 73.13
hydujstore (456) 97.3%
Was: S$ 77.80 6% off
or Best Offer
+S$ 0.97 postage
from China
2 in 1 Digital High Precision PH Redox Controller Monitor Online PH ORP Tester
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Brand New
S$ 228.57
outletmalls_92 (1,166) 97%
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Free International Shipping
from China
7 in 1 ORP PH TDS EC SG SALT TEMP Water Quality Tester Meter Online Blue Tooth
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Brand New
S$ 66.45
szsunwin (3,042) 92.9%
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+S$ 11.81 postage
from China
Multi Parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP Monitor ⊹
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Brand New
S$ 120.46
creativeonline100 (208,040) 100%
Was: S$ 128.15 6% off
or Best Offer
+S$ 0.97 postage
from China
7in1 Smart Monitor Fish Tank WIFI Pool Water Quality Meter PH ORP EC PPM Tester
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Brand New
S$ 114.63
kaariok (266) 100%
Was: S$ 121.95 6% off
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Free International Shipping
from China
9+ watchers
Digital LCD PH/TDS/EC/ORP/TEMP/Salinity Water Quality Tester Meter Pen Detector
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Brand New
S$ 26.61 to S$ 47.09
Top-rated sellerTop-rated seller
Was: S$ 33.92 5% off
gotw3527 (3,429) 99.2%
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+S$ 5.89 postage
from China
Aquarium Water Tester Drinking Water Analyser Pen ORP Meter Oxidation Reduction
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Brand New
S$ 33.22
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or Best Offer
microworld2050 (3,259) 99.5%
+S$ 7.37 postage
from China
Free returns
2in1 / 4in1 Portable Tem H2 Orp Ph Meter Dissolved Hydrogen Water Quality Tester
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Brand New
S$ 28.95 to S$ 35.97
Top-rated sellerTop-rated seller
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shieldsfans (88,466) 98.9%
+S$ 3.41 postage
from China
6 In 1 Digital Water Quality Tester TDS EC PH ORP Chlorine Temp Meter Detector
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Brand New
S$ 96.51
Top-rated sellerTop-rated seller
or Best Offer
yaleader (215) 97.6%
Free International Shipping
from China
Portable Water Quality Monitor Digital ORP Tester Pen Detachable Water ORP Meter
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Brand New
S$ 28.48
Top-rated sellerTop-rated seller
Was: S$ 29.97 5% off
yonfhot (309) 99.7%
or Best Offer
+S$ 0.72 postage
from China
2in1 / 4in1 Portable Tem H2 Orp Ph Meter Dissolved Hydrogen Water Quality Tester
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Brand New
S$ 30.27 to S$ 35.07
Top-rated sellerTop-rated seller
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microworld2050 (3,259) 99.5%
+S$ 7.37 postage
from China
Free returns
Milwaukee pH58 MAX Waterproof 3-in-1 pH/ORP/Temp Tester with Replaceable Probe
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Brand New
S$ 253.97
getultimatenow (3,209) 100%
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+S$ 51.67 postage
from United States
PH217 Water Quality Tester Water Test Meter Detector Ph ORp CF(US Plug RYZ
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Brand New
S$ 120.40
rtdyxz (34) 97.2%
or Best Offer
+S$ 0.97 postage
from China
8 in 1 Water Quality Tester PH CF ORP for Fish Tank Aquariums Online Monitoring
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Brand New
S$ 133.76
wandar66 (208) 98.7%
or Best Offer
Free International Shipping
from China
5 watchers
7 in 1 Digital LCD PH/TD/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen
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Brand New
S$ 47.80
Top-rated sellerTop-rated seller
Was: S$ 55.58 14% off
happyimprovement (2,130) 97.8%
or Best Offer
Free International Shipping
from China
Water Quality Tester SG PH EC SALT ORP TDS CF TEMP 24 Hour WiFi Monitor US Plug
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Brand New
S$ 66.81
Top-rated sellerTop-rated seller
Was: S$ 71.08 6% off
csvtion (1,668) 98.6%
or Best Offer
Free International Shipping
from China
Redox Tester ORP Test High Water Quality Tester Water Detector Portable Aquarium
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Brand New
S$ 30.47
Top-rated sellerTop-rated seller
Was: S$ 32.41 6% off
fungee33 (26,628) 98.2%
or Best Offer
+S$ 0.90 postage
from China
Backlight Water Testing Meter Pen Tester New PH/TDS/EC/SALT/SG/ORP/TEMP 7 in 1
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Brand New
S$ 42.33
cardiffee (99) 98.4%
or Best Offer
Free International Shipping
from China
Multi Parameter Water Quality Tester S.G PH/EC/SALT/ORP/TDS/CF/TEMP 8 In 1 230V
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Brand New
S$ 116.91
Top-rated sellerTop-rated seller
Was: S$ 123.07 5% off
csvtion (1,668) 98.6%
or Best Offer
Free International Shipping
from China
PH/ORP Transmitter Meter Water Analyzer Tester Alarm LCD 4-20mA RS485
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Brand New
S$ 143.08
plcome.auto (17) 100%
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+S$ 24.92 postage
from China
7In1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor Meter
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Brand New
S$ 40.77
Top-rated sellerTop-rated seller
or Best Offer
topteng-11 (443) 99.4%
Free International Shipping
from China
Free returns
Pocket ORP Tester Aquaculture Drinking Swimming pool ±999mV Water Quality Meter
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Brand New
S$ 239.20
Top-rated sellerTop-rated seller
Was: S$ 265.78 10% off
vetus-instruments (558) 98.7%
or Best Offer
+S$ 14.75 postage
from China
WiFi Chlorine Meter Solar Floating CL PH EC TDS ORP Water Quality Monitor Tester
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Brand New
S$ 391.90
tan-unknownworld (110) 89.6%
Was: S$ 412.52 5% off
Buy It Now
+S$ 23.45 postage
from China
7In1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor MeterE4
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Brand New
S$ 39.35
Top-rated sellerTop-rated seller
or Best Offer
eforshop-04 (606) 97.7%
Free International Shipping
from China
Free returns
Digital LCD Water Quality Tester Meter Pen PH/TDS/EC/ORP/TEMP/SG/Salinity Tester
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Brand New
S$ 26.62 to S$ 47.10
Top-rated sellerTop-rated seller
Was: S$ 33.93 5% off
diymoremodules (563) 98.7%
Buy It Now
+S$ 5.89 postage
from China
Calibration Digital Waterproof PH&ORP&Tem Meter Portable PH Pen Tester Automatic
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Brand New
S$ 138.59
Top-rated sellerTop-rated seller
or Best Offer
zheyansure (1,076) 99.2%
+S$ 10.90 postage
from China
Portable 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter Tester
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Brand New
S$ 36.04
Top-rated sellerTop-rated seller
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shiniaopi (2,063) 96.8%
Free International Shipping
from China
6 in1 Water Quality Monitor ORP TDS pH EC CF Temp Tester Meter ATC Function
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Brand New
S$ 206.72
eriba-984 (257) 90.5%
Buy It Now
+S$ 10.32 postage
from China
7 watchers
6in1 Water Quality Detector PH/EC/TDS/ORP/Chlorine/Temp Tester Mobile APP Data
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Brand New
S$ 97.59
Top-rated sellerTop-rated seller
Was: S$ 107.24 9% off
one19family (1,169) 99.1%
or Best Offer
Free International Shipping
from China
ORP Meter Pen Fast Reading Backlight Water Tester Accurate Negative Potential YT
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Brand New
S$ 29.03
ytrtdca (7) 88.9%
or Best Offer
Free International Shipping
from China
ORP REDOX Electrode 50 OHM BNC Type Replaceable for ORP Meter Tester Monitor
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Brand New
S$ 44.28
gxproducts (17,408) 100%
Buy It Now
Free International Shipping
from Hong Kong
PH Meter ORP Tester Monitor with PH and Temperature Probe 0.00~14.00PH -5~65℃
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Brand New
S$ 236.25
eriba-984 (257) 90.5%
Buy It Now
Free International Shipping
from China
7 in 1 Water Quality Tester Meter Pen LCD Backlight PH/ORP/EC/TEMP/SALT/S.G/TDS
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Brand New
S$ 35.38
Top-rated sellerTop-rated seller
Was: S$ 38.04 7% off
moonlovemars (14,313) 94.6%
Buy It Now
Free International Shipping
from China
6 watchers
7-in-1 Water Quality Test Analyzer Tester PH SALT TEMP ORP EC SG Meter C-600
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Brand New
S$ 47.42
Top-rated sellerTop-rated seller
or Best Offer
usdealmarket (8,816) 97.4%
+S$ 0.58 postage
from China
7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS Water Quality Tester Meter LCD Backlight
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Brand New
S$ 31.20
Top-rated sellerTop-rated seller
List price: S$ 32.10 3% off
king-fortune (64,205) 93.8%
Buy It Now
+S$ 4.43 postage
from China
Last one
20 watchers
Portable 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter Tester RA
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Brand New
S$ 46.14
Top-rated sellerTop-rated seller
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superplaza-05 (2,816) 98.1%
Free International Shipping
from China
Free returns
New 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter Tester
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Brand New
S$ 36.34
Top-rated sellerTop-rated seller
or Best Offer
eforshop-04 (606) 97.7%
Free International Shipping
from China
Free returns
WiFi Smart APP 8in1 Water Quality Tester PH/ORP/EC/SALT Fish Tank Water Monitor
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Brand New
S$ 117.52
imeixi (105) 98.2%
or Best Offer
+S$ 4.43 postage
from China
Free returns
2 in 1 Digital High Precision PH Redox Controller Monitor Online PH ORP Tester
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Brand New
S$ 235.54
truckflownow_5 (58) 100%
Was: S$ 256.02 8% off
or Best Offer
+S$ 66.45 postage
from China
Portable ORP Redox Meter Water Quality Tester LCD Pen Oxidation Reduction Meter
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Brand New
S$ 28.04
Top-rated sellerTop-rated seller
Was: S$ 29.52 5% off
cowramill (5,253) 98.5%
or Best Offer
+S$ 2.94 postage
from China
7in1 Smart Monitor Fish Tank WIFI Pool Water Quality Meter PH ORP EC PPM Tester
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Brand New
S$ 178.66
Top-rated sellerTop-rated seller
Buy It Now
apple*2012 (2,624) 98.7%
Free International Shipping
from China
PH ORP TDS EC SALT S. G TEMP CF Water Quality Tester Data Logger Controller New
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Brand New
S$ 177.79
truckflownow_5 (58) 100%
Was: S$ 193.25 8% off
Buy It Now
+S$ 14.59 postage
from China
7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS LCD Backlight Water Quality Tester Meter
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Brand New
S$ 34.58
Top-rated sellerTop-rated seller
or Best Offer
modulesworld2022 (3,001) 99%
+S$ 4.41 postage
from China
Free returns
84 sold
7 In 1 PH EC Conductivity TDS Salinity ORP SG Blue Tooth Meter Tester Measures S
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Brand New
S$ 66.45
Top-rated sellerTop-rated seller
Buy It Now
superplaza-05 (2,816) 98.1%
Free International Shipping
from China
Free returns
7 in 1 Pentype Tester PH / TDS / EC / ORP / Salinity / S.G. / Temperature Meter
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Brand New
S$ 60.39
gainexpress (71,189) 100%
or Best Offer
Free International Shipping
from Hong Kong
Water Quality Tester SG PH EC SALT ORP TDS CF TEMP 24 Hour Monitor US 100V‑110V✪
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Brand New
S$ 81.63
Top-rated sellerTop-rated seller
or Best Offer
aigoshopping (5,759) 98.5%
+S$ 0.97 postage
from China
PH/ORP/EC/TEMP/SALT/S.G/TDS LCD Backlight Water Quality Tester 7 in 1 Meter New
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Brand New
S$ 48.62
Top-rated sellerTop-rated seller
or Best Offer
akile111 (613) 100%
Free International Shipping
from China
Water Quality Tester Monitor Controller Online Meter PH ORP Aquarium Cultivation
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Brand New
S$ 247.61
Top-rated sellerTop-rated seller
Was: S$ 287.92 14% off
businessleader-0 (988) 100%
Buy It Now
Free International Shipping
from China
Free returns
7 In 1 Water Quality Tester Automatically Save Data PH EC ORP FD
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Brand New
S$ 59.60
Top-rated sellerTop-rated seller
or Best Offer
fashiondress365 (17,337) 97.8%
+S$ 0.97 postage
from China
Digital Water Tester 4 In 1 Multi Functional IP67 Waterproof PH H2 ORP Temp GU
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Brand New
S$ 40.22
Top-rated sellerTop-rated seller
or Best Offer
guxiakk (869) 94.4%
+S$ 1.46 postage
from China
ORP-969 Redox Meter ORP Tester Portable Digital Water Quality Tester Pen Tool
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Brand New
S$ 36.26
kuzip33 (88) 100%
or Best Offer
+S$ 0.97 postage
from China
ORP‑100 Digital Water Quality Tester 2‑in‑1 Portable Temperature ORP Meter
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Brand New
S$ 44.04
hydujstore (456) 97.3%
or Best Offer
+S$ 0.97 postage
from China
Digital PH ORP Controller Online Tester Water Quality Testing Phone WIFI ST
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Brand New
S$ 198.48
fesbytu9 (170) 98.9%
or Best Offer
+S$ 1.46 postage
from China
Portable 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter Tester
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Brand New
S$ 36.34
Top-rated sellerTop-rated seller
or Best Offer
topteng-11 (443) 99.4%
Free International Shipping
from China
Free returns
Water Quality Tester Meter Backlight 7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS LCD
Opens in a new window or tab
Brand New
S$ 48.72
Top-rated sellerTop-rated seller
or Best Offer
zunxiang (47) 100%
Free International Shipping
from China
8 in 1 Water Quality Tester PH CF ORP for Fish Tank Aquariums Online Monitoring
Opens in a new window or tab
Brand New
S$ 124.03
Top-rated sellerTop-rated seller
Was: S$ 130.55 5% off
yellow996 (303) 99.4%
or Best Offer
+S$ 46.17 postage
from China
Water Quality Tester ORP Meter Temperature Tester Lab ORP Tester
Opens in a new window or tab
Brand New
S$ 192.69
Top-rated sellerTop-rated seller
Was: S$ 214.10 10% off
vetus-instruments (558) 98.7%
or Best Offer
+S$ 14.75 postage
from China
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