975 results for ph monitor
- Digital Ph Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPM USOpens in a new window or tabBrand New$7.85 to $14.25Free shippingus_bigsaleshop (43,086) 98.5%
- Soil Moisture Meter 4-in-1 Soil Ph Meter Water Monitor Soil Moisture/Light/Nu...Opens in a new window or tabBrand New$19.68Free shippingtikva.shira (125) 100%
- PH-033 Portable Pen Type Waterproof Digital PH Tester Monitor Meter Detector ECOOpens in a new window or tabBrand New$19.82Free shippingfrom Chinaecolifebestter (2,551) 97.9%
- Digital PH/EC/TDS/TEMP Tester Water Quality Monitor Water pH Tester NewOpens in a new window or tabBrand New$15.99+$3.99 shippingfrom ChinaFree returnsx-modules-x (1,640) 98.8%
Picks for you under $50
Popular items from top sellers at great prices | Sponsored- Digital LCD TDS&EC Meter pH Tester Aquarium Hydroponic Water Monitor PH TestOpens in a new window or tabBrand New$13.32 to $19.99Free shippingFree returnsTop Rated Pluswater-all-pure (12,507) 99.7%
- New ListingCWP Instruments 24-7 Nutrient Monitor Meter Measures PPM, pH and Temperature.Opens in a new window or tabPre-Owned$19.99Free shippingv-t-v (856) 99.6%
- Digital PH/EC/TDS/TEMP Tester Water Quality Monitor Water pH TesterOpens in a new window or tabBrand New$17.17 to $17.99Was: $18.668% off+$3.00 shippingfrom ChinaFree returnsalice1101983 (570,037) 99.5%
- Digital PH/EC/TDS/TEMP Tester Water Quality Monitor Water pH TesterOpens in a new window or tabBrand New$16.82+$3.50 shippingfrom ChinaFree returnsTop Rated Plusworldchips (190,482) 99.1%
- Soil Ph & Moisture Meter Hygrometer Metal Sensor Plant Water Tester Monitor TestOpens in a new window or tabBrand New$20.49Free shippingFree returnsalli.shop (31) 78.2%
- New ListingSoil Ph & Moisture Meter Hygrometer Metal Sensor Plant Water Tester Monitor TestOpens in a new window or tabBrand New$20.49Free shippingFree returnsrex_shop (159) 99.4%
- Soil Ph & Moisture Meter Hygrometer Metal Sensor Plant Water Tester Monitor TestOpens in a new window or tabBrand New$20.82Free shippingFree returnsbulmashop (14) 100%
- US Portable PH Tester Chlorine Meter Swimming Pool Spa Water Quality Monitor CheOpens in a new window or tabBrand New$20.95Was: $22.778% offFree shippingfrom Chinayandonsfo (2,303) 96.7%
- 4 in 1 PH /EC/TDS/TEMP Digital Water Quality Monitor Aquarium Pool Water TesterOpens in a new window or tabBrand New$17.99+$2.99 shippingfrom Chinamodulesworld2022 (3,026) 99.1%
- Soil Moisture Meter 4-in-1 Soil Ph Meter Water Monitor SoilOpens in a new window or tabBrand New$21.38Free shippingFree returnsyoffi18_8 (1,542) 98.8%
- Soil Moisture Meter 4-in-1 Soil Ph Meter Water Monitor SoilOpens in a new window or tabBrand New$21.65Free shippinggoldmund_store (144) 97.1%
- Portable PH Tester Chlorine Meter Swimming Pool Spa Water Quality Monitor Che ACOpens in a new window or tabBrand New$21.91Was: $23.828% offFree shippingfrom Chinaactionshowhi (508) 97.6%
- Digital PH/EC/TDS/TEMP Tester Water Quality Monitor Water pH Tester USAOpens in a new window or tabBrand New$21.99Free shippingFree returnsSave up to 5% when you buy moreworldchips (190,482) 99.1%
- PH/TDS/EC/Temperature Meter Digital Water Quality Monitor Aquariums Tester PenOpens in a new window or tabBrand New$21.99 to $22.99Free shippingfrom Chinaoasis_store (3,451) 96.8%
- Portable PH Tester Chlorine Meter Swimming Pool Spa Water Quality Monitor/Opens in a new window or tabBrand New$22.16Was: $24.098% offFree shippingfrom Chinahomegoods_2021 (1,082) 97.4%
- PH-033 Portable Pen Type Waterproof Digital PH Tester Monitor Meter Detector♡Opens in a new window or tabBrand New$22.51Was: $23.956% offFree shippingfrom Chinamnyts87 (113) 100%
- Digital LCD TDS/EC/PH/TEMP Meter Tester Aquarium Water Quality Monitor Soil TestOpens in a new window or tabBrand New$22.41Was: $26.3615% off+$0.49 shippingSave up to 10% when you buy morebeautiful44 (248) 94.3%
- 5 in 1 TDS/EC/PH/Salinity/Temperature Meter Digital Water Quality Monitor TesterOpens in a new window or tabBrand New$22.99Free shippingfrom Chinayehudashtaiman (251) 91.3%
- TDS /EC/ PH /Salinity/Temperature Meter Digital Water Quality Analyzer MonitorOpens in a new window or tabBrand New$23.65Free shippingfrom ChinaFree returnsdiybox (77,069) 98.8%
- Soil Moisture Meter 4-in-1 Soil Ph Meter Water Monitor Soil Moisture/Light/Nu...Opens in a new window or tabBrand New$23.73Free shippinglimuc_26 (306) 98.7%
- Digital PH Meter 4 in 1 PH TDS EC Temp Water Quality Tester Monitor Meter NewOpens in a new window or tabOpen Box$17.95+$5.85 shipping28katz (429) 100%
- Portable PH Tester Chlorine Meter Swimming Pool Spa Water Quality Monitor CheOpens in a new window or tabBrand New$24.31Free shippingfrom Chinaneyeslight (3,918) 97.1%
- 5Pcs Digital PH Meter Tester Aquarium Pool Water Urine Wine LCD Pen MonitorOpens in a new window or tabBrand New$21.50Was: $23.378% off+$3.00 shippingfrom Chinaalice1101983 (570,037) 99.5%
- PH-033 Portable Pen Type Waterproof Digital PH Tester Monitor Meter DetectorOpens in a new window or tabBrand New$24.77Free shippingfrom Chinacsdxsf45 (38) 91.3%
- 3 In 1 Pen Type Digital pH / EC /TEMP Meter Water Quality Monitor Tester A8V3Opens in a new window or tabBrand New$24.84Was: $30.2918% offFree shippingSave up to 10% when you buy morebeauty9993 (704) 95.5%
- PH Meter Probe Sensors Module Monitoring Control Panel Tester Aquarium TestOpens in a new window or tabBrand New$24.99 to $44.99Free shippingfrom ChinaFree returnsbusinessleader-0 (990) 100%
- 4 in 1 PH/TDS/EC/Temperature Meter PH Meter Digital Water Quality Monitor TesterOpens in a new window or tabBrand New$25.10Was: $26.997% offFree shippingfrom Chinaflyingswallow (431) 100%
- 10” 3 in 1 Soil PH Meter Tester Meter Plants Acidity Humidity Monitor DetectorOpens in a new window or tabBrand New$21.28Was: $22.887% off+$3.88 shippingfrom Chinagogooauto (831) 99.3%
- PH-033 Portable Pen Type Waterproof Digital PH Tester Monitor Meter Detector USOpens in a new window or tabBrand New$25.21Was: $26.826% offFree shippingFree returns9% off $50+ with couponyueshre (181) 99.5%
- Water Quality Tester 6 In 1 PH EC TDS SALT SG TEMP Water Monitor For AquariumOpens in a new window or tabBrand New$25.69Was: $28.7111% offFree shippingfrom Chinamhfaykud34 (69) 97.3%
- Water Quality Tester 6 In 1 PH/EC/TDS/SALT/SG/TEMP Water Monitor For AquariumOpens in a new window or tabBrand New$25.72Was: $27.075% offFree shippingfrom Chinacsvtion (1,679) 98.6%
- 4In1 PH/TDS/EC/Temperature Meter Digital Water Quality Monitor Tester V1Opens in a new window or tabBrand New$25.79Free shippingFree returnsusseller999 (13,498) 97.1%
- 4In1 PH/TDS/EC/Temperature Meter Digital Water Quality Monitor Tester Test ToolOpens in a new window or tabBrand New$25.79Free shippingFree returnsdarupsun (13,772) 97.9%
- 3 In 1 Pen Type Digital pH / EC /TEMP Meter Water Quality Monitor Tester A8V3Opens in a new window or tabBrand New$25.82Was: $36.8930% offFree shippingSave up to 12% when you buy morexctrading42 (229) 94.2%
- 4In1 PH/TDS/EC/Temperature Meter Digital Water Quality Monitor TesterOpens in a new window or tabBrand New$25.85Free shippingFree returnsmansencoltd (3,109) 98.5%
- Water Quality Tester 6 In 1 PH EC TDS SALT SG TEMP Water Meter MonitorOpens in a new window or tabBrand New$25.88Was: $27.245% offFree shippingfrom Chinaabodahua563 (113) 100%
- 4In1 PH/TDS/EC/Temperature Meter Digital Water Quality Monitor Tester Test ToolOpens in a new window or tabBrand New$25.89Free shippingFree returnsexcelsellerusa (66,902) 98%
- pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Pool SpaOpens in a new window or tabBrand New$25.90Free shippingfrom Hong Konggainexpress (71,190) 100%
- pH Electrode Probe 200cm Long Cable for PH Meter Monitor Controller Test SensorOpens in a new window or tabBrand New$25.99Free shippingfrom Hong Konggxproducts (17,409) 100%
- Digital Water Temperature Meter Quality Monitor Tester 5 in 1 TDS EC PH SalinityOpens in a new window or tabBrand New$25.99 to $37.99Free shippingfrom ChinaFree returnsbusinessleader-0 (990) 100%
- PH Meter Digital TDS EC Temperature 4 In1 Water Quality Tester Monitor BacklightOpens in a new window or tabBrand New$26.03Was: $27.997% offFree shippingAlmost gone14 soldExtra 5% off with couponflyingswallow (431) 100%
- Water Quality Tester 6 In 1 PH EC TDS SALT SG TEMP Water Meter Monitor ToolOpens in a new window or tabBrand New$26.10Free shippingfrom Chinacsdxsf45 (38) 91.3%
- 3-in-1 Soil Monitor: Moisture/Humidity, pH and Fertility. Gardening, LawnOpens in a new window or tabBrand New$26.31Free shippinghiflec0 (684) 99.5%
- Water Quality Tester 6 In 1 PH EC TDS SALT SG TEMP Water Meter Monitor ToolOpens in a new window or tabBrand New$26.45Was: $31.3816% offFree shippingFree returnsSave up to 11% when you buy morenicedeal_123 (2,208) 99.3%
- 7In1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor MeterE4Opens in a new window or tabBrand New$26.65Free shippingfrom ChinaFree returnsTop Rated Pluseforshop-04 (608) 97.7%
- Water Quality Tester 6 In 1 PH EC TDS SALT SG TEMP Water Meter Monitor Tool YSEOpens in a new window or tabBrand New$26.75Was: $33.0319% offFree shippingFree returns9% off $50+ with couponyueshre (181) 99.5%
- 5 in1 Soil Meter Tester Soil PH Moisture Temperature Monitor for Garden PlantsOpens in a new window or tabBrand New$26.98Was: $29.9810% offFree shippingfrom Chinahome-dropgo (689) 96.9%
- Soil PH Meter Soil Moisture Tester Professional Soil Water Monitor AccurateOpens in a new window or tabBrand New$26.99Free shippingfrom Chinasunhk918 (70) 95.2%
- 7 In 1 Water Quality Monitor Detect ORP PH EC Salinity High Accuracy EC STOpens in a new window or tabBrand New$27.45Free shippingfrom Chinaworldproduct365 (6,968) 97.5%
- 7In1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor MeterOpens in a new window or tabBrand New$27.61Free shippingfrom ChinaFree returnstopteng-11 (444) 99.4%
- 4 in 1 Digital PH/TDS/EC/Temperature Meter pH Meter Water Quality Monitor TesterOpens in a new window or tabBrand New$28.66Was: $30.496% offFree shippingfrom Chinaibest4u (1,009) 99.3%
- 7 In 1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality MonitorOpens in a new window or tabBrand New$28.79Free shippingFree returnsdarupsun (13,772) 97.9%
- 7 In 1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor YUOpens in a new window or tabBrand New$28.79Free shippingFree returnsusseller999 (13,498) 97.1%
- 7-In-1 Water Quality PH Tester TDS ORP SG EC Meter Salinity Temperature MonitorOpens in a new window or tabBrand New$28.82Was: $30.997% offFree shippingfrom Chinanoneeasy2021 (715) 96.2%
- 7 In 1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor USAOpens in a new window or tabBrand New$28.85Free shippingFree returnsmansencoltd (3,109) 98.5%
- 7 In 1 Digital Salinity PH TDS TEMP SG EC ORP Tester Water Quality Monitor USAOpens in a new window or tabBrand New$28.89Free shippingFree returnsexcelsellerusa (66,902) 98%
- Digital PH Meter LCD Tester Hydroponics Industrial Water Quality MonitoringOpens in a new window or tabBrand New · Unbranded · Battery Included$26.65$5 off every $200 with couponTop Rated Plus
- Digital PH/EC/TDS/TEMP Tester Water Quality Monitor Water pH Tester USAOpens in a new window or tabBrand New$21.99Save up to 5% when you buy more
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