1,700+ results for orp
- Smart Monitor Fish Tank WIFI SPA Pool Water Quality Meter PH ORP EC PPM TesterOpens in a new window or tabBrand NewS$ 114.27 to S$ 115.17Top-rated sellerTop-rated sellerWas: S$ 132.38 13% offllucky666 (783) 98.2%+S$ 14.70 postagefrom China17+ watchers
- 10in1Water Quality Tester PH/TDS/EC/SALT/TEMP/S.G/ORP/H2/Fertile/Resistivity PenOpens in a new window or tabBrand NewS$ 83.35 to S$ 86.97Top-rated sellerTop-rated sellerWas: S$ 96.63 10% offadellamart88 (216) 98.2%+S$ 29.42 postagefrom China
- Fish Tank Aquariums Online Monitoring With 8 in 1 Water Quality Tester PH CF ORPOpens in a new window or tabBrand NewS$ 139.51yuelai202 (0) 0%Was: S$ 148.41 6% offFree International Shippingfrom China
- ORP/PH 6750 Industrial Digital PH ORP Controller Meter for Water TreatmentOpens in a new window or tabBrand NewS$ 249.03 to S$ 293.47xinya002 (12) 92.9%Was: S$ 308.91 5% off+S$ 29.41 postagefrom China
- 2in1 / 4in1 Portable Tem H2 Orp Ph Meter Dissolved Hydrogen Water Quality TesterOpens in a new window or tabBrand NewS$ 25.98 to S$ 27.30Top-rated sellerTop-rated sellerWas: S$ 27.93 7% offmodulefans (115,353) 99.1%+S$ 5.15 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$ 48.18Top-rated sellerTop-rated sellerWas: S$ 55.37 13% offhappyimprovement (2,075) 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$ 36.40Top-rated sellerTop-rated sellermeinianda (445) 96.7%Free International Shippingfrom China
- 169E ORP Tester Waterproof Meter Sources Aquarium Hydroponics Spas Swimming PoolOpens in a new window or tabBrand NewS$ 65.77Top-rated sellerTop-rated sellerWas: S$ 76.48 14% offbusinessleader-0 (981) 100%Free International Shippingfrom 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$ 60.90szsunwin (3,041) 92.3%Was: S$ 66.20 8% off+S$ 11.77 postagefrom China
- 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$ 122.36Top-rated sellerTop-rated sellerWas: S$ 128.80 5% offlanyydi.living (426) 98.2%+S$ 1.46 postagefrom 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$ 41.43Top-rated sellerTop-rated sellermeinianda (445) 96.7%Free International Shippingfrom China
- 8 in 1 Water Quality Tester PH CF ORP for Fish Tank Aquariums Online MonitoringOpens in a new window or tabBrand NewS$ 133.26wandar66 (208) 98.7%Free International Shippingfrom China5 watchers
- 2in1 / 4in1 Portable Tem H2 Orp Ph Meter Dissolved Hydrogen Water Quality TesterOpens in a new window or tabBrand NewS$ 27.43 to S$ 34.08Top-rated sellerTop-rated sellerWas: S$ 35.87 5% offshieldsfans (88,438) 98.9%+S$ 3.40 postagefrom China
- Milwaukee pH58 MAX Waterproof 3-in-1 pH/ORP/Temp Tester with Replaceable ProbeOpens in a new window or tabBrand NewS$ 253.01getultimatenow (3,187) 100%+S$ 51.47 postagefrom United States
- Intelligent Wireless Water Quality Monitor PH/ORP/Salt Solar Residual ChlorineOpens in a new window or tabBrand NewS$ 150.91kaariok (265) 100%+S$ 4.40 postagefrom China
- Smart Water Quality Tester PH ORP TDS EC SALT TEMP Monitor T_uya WIFI ControllerOpens in a new window or tabBrand NewS$ 205.63Top-rated sellerTop-rated sellerpumpyy_official_store (470) 100%Free International Shippingfrom ChinaFree returns
- Tuya WiFi Water Quality Monitor PH/ORP/TDS/EC/CF/Temp/Humidity Testing MeterOpens in a new window or tabBrand NewS$ 119.14Top-rated sellerTop-rated sellerWas: S$ 132.38 10% offhappylife8 (584) 97.6%+S$ 7.36 postagefrom China
- ORP Meter Controller ORP Water Quality Monitor For Aquarium -1999 to 1999mVOpens in a new window or tabBrand NewS$ 79.43Top-rated sellerTop-rated sellerWas: S$ 88.26 10% offvetus-instruments (555) 98.6%Free International Shippingfrom 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$ 51.26Top-rated sellerTop-rated sellerhuossbillsh (2,862) 98.7%Free International Shippingfrom China
- Digital LCD Mini ORP Meter Tester Aquarium Water Quality Analyzer 220VOpens in a new window or tabBrand NewS$ 66.20eriba-984 (257) 90.5%Free International Shippingfrom China
- 6 in1 Multi-Parameter Water Quality Monitor ORP/pH/EC/TDS/CF/mV/Temp MonitorOpens in a new window or tabBrand NewS$ 176.95Top-rated sellerTop-rated sellerWas: S$ 196.62 10% offvetus-instruments (555) 98.6%+S$ 14.70 postagefrom China7 watchers
- ORP REDOX Electrode 50 OHM BNC Type Replaceable for ORP Meter Tester MonitorOpens in a new window or tabBrand NewS$ 44.12gxproducts (17,407) 100%Free International Shippingfrom Hong Kong
- Digital LCD PH/TDS/EC/ORP/TEMP/Salinity Water Quality Tester Meter Pen DetectorOpens in a new window or tabBrand NewS$ 27.91 to S$ 49.38Top-rated sellerTop-rated sellergotw3527 (3,390) 99.2%+S$ 5.87 postagefrom China
- Meter Digital 7 in 1 //EC/ORP/S.G/Salinity/Temp Meter with ATC 0.01 S9K7Opens in a new window or tabBrand NewS$ 48.11Top-rated sellerTop-rated sellercss276 (2,092) 98.4%Free International Shippingfrom China
- PH‑803W PH ORP Controller Acidity Alkalinity Controller Water Quality Monitor EUOpens in a new window or tabBrand NewS$ 199.10Top-rated sellerTop-rated sellerWas: S$ 211.81 6% offyundet22 (176) 97.8%+S$ 1.46 postagefrom China
- 7 in 1 PH/TDS/EC/ORP/Salinity /S. G/Temperature Meter C-600 Water Quality TesterOpens in a new window or tabBrand NewS$ 125.02 to S$ 129.43diaduzab6 (365) 100%Free International Shippingfrom China
- Water Quality Meter ORP PH TDS TEMP EC Salinity 7 In 1 Accurate Digital W FDOpens in a new window or tabBrand NewS$ 33.69Top-rated sellerTop-rated sellerfashiondress365 (17,335) 97.8%+S$ 0.96 postagefrom China
- PH / ORP Controller with pH Meter Redox Temp Tester App Remote Online MonitoringOpens in a new window or tabBrand NewS$ 167.68gxproducts (17,407) 100%Free International Shippingfrom Hong Kong
- Intelligent Wireless Water Quality Monitor, PH/ORP/Salt, Solar Residual ChlorineOpens in a new window or tabBrand NewS$ 136.2466soar66 (599) 96.3%Was: S$ 146.50 7% off+S$ 4.40 postagefrom China
- Apera Instruments PCO60-Z Bluetooth pHOpens in a new window or tabBrand NewS$ 294.20donkfella (239) 100%+S$ 110.96 postagefrom United States
- Smart Monitor Fish Tank Aquarium Pool WIFI PH ORP EC PPM Water Quality SensorOpens in a new window or tabBrand NewS$ 111.38Top-rated sellerTop-rated sellerWas: S$ 122.40 9% offbillions_366 (289) 95.3%Free International Shippingfrom China
- Smart Monitor Fish Tank Aquarium WIFI SPA Pool Water Quality Meter PH ORP EC PPMOpens in a new window or tabBrand NewS$ 132.38Top-rated sellerTop-rated sellerWas: S$ 147.09 10% offotohappy (2,028) 97%Free International Shippingfrom China
- Digital LCD PH/TDS/EC/ORP/TEMP/Salinity Water Quality Tester Meter Pen DetectorOpens in a new window or tabBrand NewS$ 26.51 to S$ 46.91Top-rated sellerTop-rated sellerWas: S$ 33.79 5% offcowramill (5,215) 98.5%+S$ 5.87 postagefrom China
- Portable Water Quality Monitor Digital ORP Tester Pen Detachable Water ORP MeterOpens in a new window or tabBrand NewS$ 28.38Top-rated sellerTop-rated sellerWas: S$ 29.86 5% offyonfhot (294) 99.7%+S$ 0.72 postagefrom China
- Digital Water Tester 4 In 1 Multi Functional IP67 Waterproof PH H2 ORP Temp GUOpens in a new window or tabBrand NewS$ 36.86Top-rated sellerTop-rated sellerWas: S$ 40.07 8% offguxiakk (866) 94.4%+S$ 1.46 postagefrom China
- ORP-969 Redox Meter ORP Tester Portable Digital Water Quality Tester Pen ToolOpens in a new window or tabBrand NewS$ 36.16kuzip33 (82) 100%+S$ 0.96 postagefrom China
- 8 in 1 Water Quality Tester PH CF ORP for Fish Tank Aquariums Online MonitoringOpens in a new window or tabBrand NewS$ 125.22Top-rated sellerTop-rated sellerWas: S$ 131.81 5% offorange08 (159) 98.4%Free International Shippingfrom China9 watchers
- Water Quality Meter Tester Tool Backlight PH/TDS/EC/ORP/TEMP/SG/SalinityOpens in a new window or tabBrand NewS$ 33.36Top-rated sellerTop-rated seller18_e0lljw (6,055) 93%Free International Shippingfrom ChinaFree returns4 watchers
- AZ86555 Benchtop PH Meter Water Quality Meter pH/ORP/Cond/TDS/Salinity w/PrinterOpens in a new window or tabBrand NewS$ 633.02szsosowin (160) 96.2%Was: S$ 673.43 6% off+S$ 67.48 postagefrom China
- WIFI Smart Monitor Fish Tank Aquarium SPA Pool Water Quality Meter PH ORP EC PPMOpens in a new window or tabBrand NewS$ 121.71Top-rated sellerTop-rated sellerWas: S$ 132.30 8% offgoodidea5963 (942) 97.2%+S$ 8.81 postagefrom China
- Portable 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter TesterOpens in a new window or tabBrand NewS$ 35.94Top-rated sellerTop-rated sellershiniaopi (2,055) 96.8%Free International Shippingfrom China
- 7In1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor MeterOpens in a new window or tabBrand NewS$ 40.61Top-rated sellerTop-rated sellertopteng-11 (437) 99.4%Free International Shippingfrom ChinaFree returns
- ORP2069 Portable Water-Quality Monitor Digital ORP Tester Pen Water ORP Meter✪Opens in a new window or tabBrand NewS$ 33.18Top-rated sellerTop-rated sellerWas: S$ 35.30 6% offaigoshopping (5,743) 98.4%+S$ 0.96 postagefrom China
- 7in1 Smart Monitor Fish Tank WIFI Pool Water Quality Meter PH ORP EC PPM TesterOpens in a new window or tabBrand NewS$ 121.49kaariok (265) 100%Free International Shippingfrom China9+ watchers
- Multi Parameter Water Quality Tester S.G PH EC SALT ORP TDS CF TEMP Monitor ⊹Opens in a new window or tabBrand NewS$ 120.13creativeonline100 (208,038) 100%Was: S$ 127.80 6% off+S$ 0.96 postagefrom 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$ 116.47Top-rated sellerTop-rated sellerWas: S$ 122.61 5% offcsvtion (1,642) 98.6%Free International Shippingfrom China
- 6 in1 Water Quality Monitor ORP TDS pH EC CF Temp Tester Meter ATC FunctionOpens in a new window or tabBrand NewS$ 204.87eriba-984 (257) 90.5%+S$ 10.28 postagefrom China7 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$ 35.25Top-rated sellerTop-rated sellerWas: S$ 37.89 7% offmoonlovemars (14,310) 94.2%Free International Shippingfrom China6 watchers
- Milwaukee PH-MAIN Maintenance Kit for pH / ORP Meters and TestersOpens in a new window or tabBrand NewS$ 44.12getultimatenow (3,187) 100%+S$ 35.54 postagefrom United States
- PH ORP Controller Acidity Alkalinity Controller Water Quality Monitoring ToolOpens in a new window or tabBrand NewS$ 174.65mhfaykud34 (53) 94.9%Was: S$ 183.85 5% offFree International Shippingfrom China
- 7 In 1 Backlight TEMP/SG/EC/ORP/PH/TDS/Salinity Water Quality Meter TesterOpens in a new window or tabBrand NewS$ 43.41Top-rated sellerTop-rated sellerbruceshark-004 (13,906) 97.7%Free International Shippingfrom ChinaFree returns
- Water Quality Tester SG PH EC SALT ORP TDS CF TEMP 24 Hour WiFi Monitor US PlugOpens in a new window or tabBrand NewS$ 70.81Top-rated sellerTop-rated sellercsvtion (1,642) 98.6%Free International Shippingfrom China
- Milwaukee Instruments pH and ORP Meter bundle (MW102 PRO+ & MW500 PRO)Opens in a new window or tabBrand NewS$ 425.56getultimatenow (3,187) 100%+S$ 176.11 postagefrom United States
- Portable 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter TesterOpens in a new window or tabBrand NewS$ 36.20Top-rated sellerTop-rated sellertopteng-11 (437) 99.4%Free International Shippingfrom ChinaFree returns
- 6in1 Water Quality Detector PH/EC/TDS/ORP/Chlorine/Temp Tester Mobile APP DataOpens in a new window or tabBrand NewS$ 97.32Top-rated sellerTop-rated sellerWas: S$ 106.95 9% offone19family (1,167) 99.2%Free International Shippingfrom China
- 7 in 1 PH/ORP/EC/TEMP/SALT/S.G/TDS Water Quality Tester Meter LCD BacklightOpens in a new window or tabBrand NewS$ 31.08Top-rated sellerTop-rated sellerList price: S$ 31.98 3% offking-fortune (64,197) 93.7%+S$ 4.41 postagefrom ChinaLast one20 watchers
- Handheld PH ORP Meter Digital Oxygen Concentration Temperature Meter DetectorOpens in a new window or tabBrand NewS$ 264.78Top-rated sellerTop-rated sellerWas: S$ 294.20 10% offvetus-instruments (555) 98.6%Free International Shippingfrom China
- Water Quality Meter ORP PH TDS TEMP EC Salinity SG 7 In 1 Accurate DigitalOpens in a new window or tabBrand NewS$ 34.84Top-rated sellerTop-rated sellervagerpeace (1,673) 98%+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$ 27.92 to S$ 49.40Top-rated sellerTop-rated sellerdiymoremodules (560) 98.7%+S$ 5.87 postagefrom China
- ORP Tester Meter -1999mV~1999mV Millivolts Pool Aquarium Redox Digital PenOpens in a new window or tabBrand NewS$ 20.59svyatoslavbogatyrev (173) 96.8%+S$ 78.35 postagefrom United States
- ORP-986 Pen Type ORP Meter Water Quality Tester Analyzer Detector Monitor ⊹Opens in a new window or tabBrand NewS$ 46.17creativeonline100 (208,038) 100%+S$ 0.96 postagefrom China
- 10 in 1 Water Quality Tester PH Meter TDS/EC/Salinity/S.G/ORP/H2/MΩ/Temp TesterOpens in a new window or tabBrand NewS$ 46.91 to S$ 48.38Top-rated sellerTop-rated sellerdiymoremodules (560) 98.7%+S$ 5.87 postagefrom China
- 5 in 1 Digital PH TDS EC ORP Temperature Water Quality Tester Meter Test Tool S1Opens in a new window or tabBrand NewS$ 43.41Top-rated sellerTop-rated sellerbruceshark-004 (13,906) 97.7%Free International Shippingfrom ChinaFree returns
- ORP2069 Portable Water-Quality Monitor Digital ORP Tester Pen Water ORP MeterOpens in a new window or tabBrand NewS$ 32.85hydujstore (453) 97.4%Was: S$ 34.95 6% off+S$ 0.96 postagefrom China
- Digital Meter PH/ORP/Temp/TDS/EC Portable Aquarium Drinking Water Tester EZ-9910Opens in a new window or tabBrand NewS$ 45.53 to S$ 72.09Top-rated sellerTop-rated sellerWas: S$ 52.94 14% offbusinessleader-0 (981) 100%Free International Shippingfrom China
- ORP Redox Electrode ±1999mV Oxidation Reduction Potential Replacement ProbeOpens in a new window or tabBrand NewS$ 53.69gxproducts (17,407) 100%Free International Shippingfrom Hong Kong4 watchers
- 7 in 1 Digital Water Tester with Bluetooth / ORP, PH, TDS, EC, SG Meter / SolemeOpens in a new window or tabBrand NewS$ 61.77cyk0_58 (23) 95.2%Free International Shippingfrom China
- ORP Meter Portable Redox Potential Test Pen Digital Measurement ORP/TemperOpens in a new window or tabBrand NewS$ 33.72Top-rated sellerTop-rated sellerWas: S$ 36.64 8% offindustrial_shop (564) 98.3%+S$ 0.72 postagefrom China
- WIFI Smart Monitor Fish Tank Aquarium SPA Pool Water Quality Meter PH ORP EC PPMOpens in a new window or tabBrand NewS$ 131.17 to S$ 132.52Top-rated sellerTop-rated sellerWas: S$ 142.57 8% offhandsups (693) 96.6%Free International Shippingfrom China
- ORP‑100 Digital Water Quality Tester 2‑in‑1 Portable Temperature ORP Meter✪Opens in a new window or tabBrand NewS$ 45.25Top-rated sellerTop-rated sellerWas: S$ 48.14 6% offaigoshopping (5,743) 98.4%+S$ 0.96 postagefrom China
- 7 In 1 Water Quality Monitor WiFi APP ABS EC Conductivity PH ORP Meter☜Opens in a new window or tabBrand NewS$ 98.34 to S$ 98.46Top-rated sellerTop-rated sellerWas: S$ 106.89 8% off2018bestbuybest (2,411) 96%Free International Shippingfrom China
- ORP‑100 Digital Water Quality Tester 2‑in‑1 Portable Temperature ORP MeterOpens in a new window or tabBrand NewS$ 44.99hydujstore (453) 97.4%+S$ 0.96 postagefrom China
- Water Quality Tester Monitor Controller Online Meter PH ORP Aquarium CultivationOpens in a new window or tabBrand NewS$ 246.67Top-rated sellerTop-rated sellerWas: S$ 286.83 14% offbusinessleader-0 (981) 100%Free International Shippingfrom ChinaFree returns
- Smart Monitor Fish Tank Aquarium WIFI SPA Pool Water Quality Meter PH ORP EC PPMOpens in a new window or tabBrand NewS$ 212.91top-rate-auseller (9) 100%Free International Shippingfrom ChinaFree returns
- Smart Monitor WIFI Water Quality Meter PH ORP EC PPM CF Humidity TemperatureOpens in a new window or tabBrand NewS$ 119.00 to S$ 120.28Top-rated sellerTop-rated sellerWas: S$ 138.26 13% offmotorrauto (1,571) 96.2%+S$ 8.81 postagefrom China
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