1,400+ results for orp tester
- 7in1 Tester Meter PH/ORP/EC/TEMP/S.G/SALT/TDS LCD Backlight Water Quality TesterOpens in a new window or tabBrand NewS$ 36.41Top-rated sellerTop-rated sellerkpitworth (188) 97.9%Free International Shippingfrom China
- Portable 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter TesterOpens in a new window or tabBrand NewS$ 36.46Top-rated sellerTop-rated sellermeinianda (449) 96.7%Free International Shippingfrom China
- Smart Monitor Fish Tank WIFI SPA Pool Water Quality Meter PH ORP EC PPM TesterOpens in a new window or tabBrand NewS$ 114.79 to S$ 115.69Top-rated sellerTop-rated sellerWas: S$ 132.98 13% offllucky666 (789) 98.4%+S$ 14.76 postagefrom China17+ watchers
- Water Quality Meter Tester Tool Backlight PH/TDS/EC/ORP/TEMP/SG/SalinityOpens in a new window or tabBrand NewS$ 33.51Top-rated sellerTop-rated seller18_e0lljw (6,055) 93%Free International Shippingfrom ChinaFree returns4 watchers
- ORP-169 Portable Water Quality Monitor Digital ORP Tester Pen Water ORP MeterOpens in a new window or tabBrand NewS$ 29.21Top-rated sellerTop-rated sellerhomegooparts (11,224) 98.5%+S$ 1.09 postagefrom China
- Digital LCD PH/TDS/EC/ORP/TEMP/Salinity Water Quality Tester Meter Pen DetectorOpens in a new window or tabBrand NewS$ 26.63 to S$ 47.12Top-rated sellerTop-rated sellerWas: S$ 33.94 5% offcowramill (5,242) 98.5%+S$ 5.90 postagefrom China
- 7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS LCD Backlight Water Quality Tester Meter UKOpens in a new window or tabBrand NewS$ 47.98tulistraders (637) 97.4%+S$ 9.23 postagefrom United Kingdom
- Multi Parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP 8 In 1 R LLIOpens in a new window or tabBrand NewS$ 121.63Top-rated sellerTop-rated sellerWas: S$ 129.39 6% offlanyydi.living (430) 98.2%+S$ 1.46 postagefrom China
- 2in1 / 4in1 Portable Tem H2 Orp Ph Meter Dissolved Hydrogen Water Quality TesterOpens in a new window or tabBrand NewS$ 26.10 to S$ 27.43Top-rated sellerTop-rated sellerWas: S$ 28.06 7% offmodulefans (115,395) 99.1%+S$ 5.17 postagefrom China
- 6 In 1 Digital Water Quality Tester TDS EC PH ORP Chlorine Temp Meter DetectorOpens in a new window or tabBrand NewS$ 101.52Top-rated sellerTop-rated sellersun9rise (1,275) 98.2%Free International Shippingfrom China
- 169E ORP Tester Waterproof Meter Sources Aquarium Hydroponics Spas Swimming PoolOpens in a new window or tabBrand NewS$ 66.07Top-rated sellerTop-rated sellerWas: S$ 76.83 14% offbusinessleader-0 (985) 100%Free International Shippingfrom China
- PH / ORP Controller with pH Meter Redox Temp Tester App Remote Online MonitoringOpens in a new window or tabBrand NewS$ 168.44gxproducts (17,408) 100%Free International Shippingfrom Hong Kong
- 7in1 Multi-Parameter Water Quality Test Meter PH ORP EC TDS PPM CF TEMP TesterOpens in a new window or tabBrand NewS$ 116.56Top-rated sellerTop-rated sellerWas: S$ 125.34 7% off19smileday (728) 96.9%Free International Shippingfrom China
- 2 in 1 Digital High Precision PH Redox Controller Monitor Online PH ORP TesterOpens in a new window or tabBrand NewS$ 228.75outletmalls_92 (1,165) 96.9%Free International Shippingfrom China
- 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter PenOpens in a new window or tabBrand NewS$ 41.50Top-rated sellerTop-rated sellermeinianda (449) 96.7%Free International Shippingfrom China
- Digital LCD Mini ORP Meter Tester Aquarium Water Quality Analyzer 220VOpens in a new window or tabBrand NewS$ 66.50eriba-984 (257) 90.5%Free International Shippingfrom China
- Multi Parameter Water Quality Tester S.G PH/EC/SALT/ORP/TDS/CF/TEMP 8 In 1 230VOpens in a new window or tabBrand NewS$ 117.01Top-rated sellerTop-rated sellerWas: S$ 123.17 5% offcsvtion (1,660) 98.6%Free International Shippingfrom China
- Waterproof-pH-ORP-C-Combo-Tester-Meter with Automatic CalibrationOpens in a new window or tabBrand NewS$ 230.45anatek_electronics (1,360) 100%+S$ 41.18 postagefrom United States
- Water Quality Tester SG PH EC SALT ORP TDS CF TEMP 24 Hour Monitor US 100V‑110VOpens in a new window or tabBrand NewS$ 72.89hydujstore (456) 97.3%Was: S$ 77.54 6% off+S$ 0.96 postagefrom China
- Multi Parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP Monitor ⊹Opens in a new window or tabBrand NewS$ 120.05creativeonline100 (208,039) 100%Was: S$ 127.72 6% off+S$ 0.96 postagefrom China
- ORP REDOX Electrode 50 OHM BNC Type Replaceable for ORP Meter Tester MonitorOpens in a new window or tabBrand NewS$ 44.32gxproducts (17,408) 100%Free International Shippingfrom Hong Kong
- Aquarium Water Tester Drinking Water Analyser Pen ORP Meter Oxidation ReductionOpens in a new window or tabBrand NewS$ 33.21Top-rated sellerTop-rated sellermicroworld2050 (3,246) 99.5%+S$ 7.37 postagefrom ChinaFree returns
- Portable Water Quality Monitor Digital ORP Tester Pen Detachable Water ORP MeterOpens in a new window or tabBrand NewS$ 28.51Top-rated sellerTop-rated sellerWas: S$ 30.00 5% offyonfhot (305) 99.7%+S$ 0.72 postagefrom China
- 7 in 1 ORP PH TDS EC SG SALT TEMP Water Quality Tester Meter Online Blue ToothOpens in a new window or tabBrand NewS$ 66.50szsunwin (3,042) 92.9%+S$ 11.82 postagefrom China
- Digital LCD PH/TDS/EC/ORP/TEMP/Salinity Water Quality Tester Meter Pen DetectorOpens in a new window or tabBrand NewS$ 28.03 to S$ 49.61Top-rated sellerTop-rated sellergotw3527 (3,413) 99.2%+S$ 5.90 postagefrom China
- Redox Tester ORP Test High Water Quality Tester Water Detector Portable AquariumOpens in a new window or tabBrand NewS$ 30.46Top-rated sellerTop-rated sellerWas: S$ 32.40 6% offfungee33 (26,582) 98.2%+S$ 0.90 postagefrom China
- 7 in 1 Digital LCD PH/TD/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter PenOpens in a new window or tabBrand NewS$ 47.83Top-rated sellerTop-rated sellerWas: S$ 55.62 14% offhappyimprovement (2,111) 97.9%Free International Shippingfrom China
- Water Quality Tester SG PH EC SALT ORP TDS CF TEMP 24 Hour WiFi Monitor US PlugOpens in a new window or tabBrand NewS$ 66.87Top-rated sellerTop-rated sellerWas: S$ 71.14 6% offcsvtion (1,660) 98.6%Free International Shippingfrom China
- Apera Premium Series ORP60 Pocket ORP Tester Replaceable Probe for general waterOpens in a new window or tabBrand NewS$ 192.10aperainstruments (488) 83.3%+S$ 239.92 postagefrom United States
- ORP-169 Water Quality Monitor Digital ORP Tester Pen Detachable Water ORP MeterOpens in a new window or tabBrand NewS$ 31.16abodahua563 (108) 100%Was: S$ 32.81 5% offFree International Shippingfrom China
- Apera Instruments PCO60-Z Bluetooth pHOpens in a new window or tabBrand NewS$ 295.54donkfella (239) 100%+S$ 111.46 postagefrom United States
- 8 in 1 Water Quality Tester PH CF ORP for Fish Tank Aquariums Online MonitoringOpens in a new window or tabBrand NewS$ 122.05white099 (72) 97.4%Was: S$ 129.84 6% off+S$ 46.15 postagefrom China29 watchers
- ORP Meter Pen Fast Reading Backlight Water Tester Accurate Negative Potential YTOpens in a new window or tabBrand NewS$ 28.84ytrtdca (6) 87.5%Free International Shippingfrom China
- Calibration Digital Waterproof PH&ORP&Tem Meter Portable PH Pen Tester AutomaticOpens in a new window or tabBrand NewS$ 138.54Top-rated sellerTop-rated sellerzheyansure (1,073) 99.2%+S$ 10.89 postagefrom China
- 2in1 / 4in1 Portable Tem H2 Orp Ph Meter Dissolved Hydrogen Water Quality TesterOpens in a new window or tabBrand NewS$ 28.85 to S$ 35.84Top-rated sellerTop-rated sellershieldsfans (88,457) 98.9%+S$ 3.40 postagefrom China
- 7in1 Smart Monitor Fish Tank WIFI Pool Water Quality Meter PH ORP EC PPM TesterOpens in a new window or tabBrand NewS$ 114.71kaariok (266) 100%Was: S$ 122.04 6% offFree International Shippingfrom China9+ watchers
- Multi Parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP 8 In 1 R HANOpens in a new window or tabBrand NewS$ 120.42hanget4 (159) 99.4%Was: S$ 129.48 7% off+S$ 1.46 postagefrom China
- 7In1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor MeterOpens in a new window or tabBrand NewS$ 40.80Top-rated sellerTop-rated sellertopteng-11 (439) 99.4%Free International Shippingfrom ChinaFree returns
- Milwaukee pH58 MAX Waterproof 3-in-1 pH/ORP/Temp Tester with Replaceable ProbeOpens in a new window or tabBrand NewS$ 254.17getultimatenow (3,204) 100%+S$ 51.71 postagefrom United States
- WiFi Chlorine Meter Solar Floating CL PH EC TDS ORP Water Quality Monitor TesterOpens in a new window or tabBrand NewS$ 392.20tan-unknownworld (110) 89.6%Was: S$ 412.84 5% off+S$ 23.47 postagefrom China
- Portable 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter TesterOpens in a new window or tabBrand NewS$ 35.91Top-rated sellerTop-rated sellershiniaopi (2,059) 96.8%Free International Shippingfrom China
- PH Meter ORP Tester Monitor with PH and Temperature Probe 0.00~14.00PH -5~65℃Opens in a new window or tabBrand NewS$ 236.43eriba-984 (257) 90.5%Free International Shippingfrom China
- 6in1 Water Quality Detector PH/EC/TDS/ORP/Chlorine/Temp Tester Mobile APP DataOpens in a new window or tabBrand NewS$ 97.25Top-rated sellerTop-rated sellerWas: S$ 106.87 9% offone19family (1,168) 99.1%Free International Shippingfrom China
- 7in1 Smart Monitor Fish Tank WIFI Pool Water Quality Meter PH ORP EC PPM TesterOpens in a new window or tabBrand NewS$ 134.10Top-rated sellerTop-rated sellerWas: S$ 178.80 25% offapple*2012 (2,624) 98.7%Free International Shippingfrom China
- New 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter TesterOpens in a new window or tabBrand NewS$ 36.37Top-rated sellerTop-rated sellereforshop-04 (605) 97.7%Free International Shippingfrom ChinaFree returns
- 7In1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor MeterE4Opens in a new window or tabBrand NewS$ 39.38Top-rated sellerTop-rated sellereforshop-04 (605) 97.7%Free International Shippingfrom ChinaFree returns
- Portable ORP Redox Meter Water Quality Tester LCD Pen Oxidation Reduction MeterOpens in a new window or tabBrand NewS$ 28.06Top-rated sellerTop-rated sellerWas: S$ 29.54 5% offcowramill (5,242) 98.5%+S$ 2.94 postagefrom China
- Backlight Water Testing Meter Pen Tester New PH/TDS/EC/SALT/SG/ORP/TEMP 7 in 1Opens in a new window or tabBrand NewS$ 42.31cardiffee (98) 98.4%Free International Shippingfrom China
- ORP-969 Redox Meter ORP Tester Portable Digital Water Quality Tester Pen ToolOpens in a new window or tabBrand NewS$ 36.14kuzip33 (88) 100%+S$ 0.96 postagefrom China
- Digital LCD Water Quality Tester Meter Pen PH/TDS/EC/ORP/TEMP/SG/Salinity TesterOpens in a new window or tabBrand NewS$ 26.64 to S$ 47.14Top-rated sellerTop-rated sellerWas: S$ 33.96 5% offdiymoremodules (562) 98.7%+S$ 5.90 postagefrom China
- Water Quality Tester SG PH EC SALT ORP TDS CF TEMP 24 Hour Monitor US 100V‑110V✪Opens in a new window or tabBrand NewS$ 81.36Top-rated sellerTop-rated selleraigoshopping (5,754) 98.5%+S$ 0.96 postagefrom China
- 2in1 / 4in1 Portable Tem H2 Orp Ph Meter Dissolved Hydrogen Water Quality TesterOpens in a new window or tabBrand NewS$ 30.26 to S$ 35.06Top-rated sellerTop-rated sellermicroworld2050 (3,246) 99.5%+S$ 7.37 postagefrom ChinaFree returns
- 7 In 1 PH EC Conductivity TDS Salinity ORP SG Blue Tooth Meter Tester Measures SOpens in a new window or tabBrand NewS$ 66.43Top-rated sellerTop-rated sellersuperplaza-05 (2,815) 98.1%Free International Shippingfrom ChinaFree returns
- 7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS Water Quality Tester Meter LCD BacklightOpens in a new window or tabBrand NewS$ 31.22Top-rated sellerTop-rated sellerList price: S$ 32.13 3% offking-fortune (64,202) 93.8%+S$ 4.43 postagefrom ChinaLast one20 watchers
- 7 in 1 Water Quality Tester Meter Pen LCD Backlight PH/ORP/EC/TEMP/SALT/S.G/TDSOpens in a new window or tabBrand NewS$ 35.41Top-rated sellerTop-rated sellerWas: S$ 38.07 7% offmoonlovemars (14,312) 94.6%Free International Shippingfrom China6 watchers
- Digital PH Controller ORP Meter Monitor Upper Lower Alarm Tester 0.02pH 1mVOpens in a new window or tabBrand NewS$ 71.24 to S$ 316.22winterwintercold (11) 82.4%Free International Shippingfrom ChinaFree returns
- 6 in1 Water Quality Monitor ORP TDS pH EC CF Temp Tester Meter ATC FunctionOpens in a new window or tabBrand NewS$ 206.88eriba-984 (257) 90.5%+S$ 10.33 postagefrom China7 watchers
- 6 In 1 Digital Water Quality Tester TDS EC PH ORP Chlorine Temp Meter DetectorOpens in a new window or tabBrand NewS$ 88.49Top-rated sellerTop-rated sellerWas: S$ 96.19 8% off19smileday (728) 96.9%+S$ 9.71 postagefrom China
- Digital PH ORP Meter With Temperature Measurement Water Quality Tester ForOpens in a new window or tabBrand NewS$ 30.78Top-rated sellerTop-rated sellerWas: S$ 32.40 5% offfigdlookit (1,820) 98.6%+S$ 7.37 postagefrom China
- 7 In 1 Water Quality Tester Automatically Save Data PH EC ORP FDOpens in a new window or tabBrand NewS$ 59.40Top-rated sellerTop-rated sellerfashiondress365 (17,337) 97.8%+S$ 0.96 postagefrom China
- WiFi Smart APP 8in1 Water Quality Tester PH/ORP/EC/SALT Fish Tank Water MonitorOpens in a new window or tabBrand NewS$ 117.61imeixi (103) 98.1%+S$ 4.43 postagefrom ChinaFree returns
- 2 in 1 Digital High Precision PH Redox Controller Monitor Online PH ORP TesterOpens in a new window or tabBrand NewS$ 251.18salah9oogle (0) 0%Free International Shippingfrom China
- ORP‑100 Digital Water Quality Tester 2‑in‑1 Portable Temperature ORP MeterOpens in a new window or tabBrand NewS$ 43.89hydujstore (456) 97.3%+S$ 0.96 postagefrom China
- 7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS LCD Backlight Water Quality Tester MeterOpens in a new window or tabBrand NewS$ 34.61Top-rated sellerTop-rated sellermodulesworld2022 (2,987) 99%+S$ 4.42 postagefrom ChinaFree returns84 sold
- 7 in 1 Pentype Tester PH / TDS / EC / ORP / Salinity / S.G. / Temperature MeterOpens in a new window or tabBrand NewS$ 60.44gainexpress (71,188) 100%Free International Shippingfrom Hong Kong
- Water Quality Tester SG PH EC SALT ORP TDS CF TEMP 24 Hour Monitor US 100V‑110VOpens in a new window or tabBrand NewS$ 75.36Top-rated sellerTop-rated sellerWas: S$ 80.18 6% offyundet22 (182) 97.9%+S$ 1.46 postagefrom China
- Water Quality Tester Monitor Controller Online Meter PH ORP Aquarium CultivationOpens in a new window or tabBrand NewS$ 247.80Top-rated sellerTop-rated sellerWas: S$ 288.14 14% offbusinessleader-0 (985) 100%Free International Shippingfrom ChinaFree returns
- Portable Mini Pen Type ORP Meter Water Quality Tester Analyzer For Aquarium NEYOpens in a new window or tabBrand NewS$ 31.61Top-rated sellerTop-rated sellerneyeslight (3,912) 97.1%+S$ 1.46 postagefrom China
- Apera Instruments GroStar Series GS1-P pH/ORP Pen Tester Kit With Double JunctioOpens in a new window or tabBrand NewS$ 98.27xac_co (493) 100%+S$ 68.83 postagefrom United States3 watchers
- PH ORP TDS EC SALT S. G TEMP CF Water Quality Tester Data Logger Controller NewOpens in a new window or tabBrand NewS$ 177.93truckflownow_5 (58) 100%Was: S$ 193.40 8% off+S$ 14.60 postagefrom China
- PH217 Water Quality Tester Water Test Meter Detector Ph ORp CF(US Plug RYZOpens in a new window or tabBrand NewS$ 125.66rtdyxz (33) 100%+S$ 0.96 postagefrom China
- Digital Chlorine ORP EC Temp PH Meter Bluet Ooth 6 In 1 Water Quality TesterOpens in a new window or tabBrand NewS$ 103.18Top-rated sellerTop-rated sellerpatiesming (2,237) 97.8%Free International Shippingfrom China
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