9,500+ results for water tester
- TDS Meter Digital Water Tester,ppm Meter LCD Display F Drinking Water,AquariumsOpens in a new window or tabBrand New$13.32Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns116 sold
- Upgraded PH TDS Meter Combo Water Tester Kits for Drinking Water Aquarium PoolOpens in a new window or tabBrand New$11.99 to $18.99Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns
- Water Tester PH PPM Meter,Digital TDS Meter Water Quality Pool Water Test0-14 PHOpens in a new window or tabBrand New$18.99Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns
- Digital pH & TDS Test Tester Meter LCD Display for Tap Well Water Fish TankOpens in a new window or tabBrand New$10.99ksenija-56 (22) 92.3%Free shippingfrom ChinaLast one2 watchers
- TDS Meter Digital Tester Water Quality Testing Kits for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$6.99Top Rated Plusshoppingg_joy (49,398) 98.1%Free shippingFree returns140 sold
- 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter PenOpens in a new window or tab❤️900+Sold✔️IP67 Waterproof✨60Day Free Return⭐Save15%UPBrand New7 product ratings - 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen$21.48Save up to 15% when you buy moreList price: $30.98 31% offTop Rated Plusredtagtown (360,112) 99.4%Free 4 day shippingFree returns1,110 sold
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$6.65Save up to 20% when you buy moreTop Rated PlusFree shippingshoppingg_joy (49,398) 98.1%Free returns2,197 sold
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$5.59elecprog_49 (1,234) 97.6%Free shipping52 sold
Picked For You
Sponsored | Top selling items from highly rated sellers with free shipping- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.59antswms (5) 100%Free shipping
- TDS Meter Digital Water Tester Professional 3-in-1 TDS,Temperature EC MeterOpens in a new window or tabBrand New$13.32Top Rated Plusexcellent-honor-sales (7,981) 99.9%Free shippingFree returns142 sold
- 4 in 1 Digital PH EC Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$18.98Save up to 10% when you buy moreList price: $28.98 35% offTop Rated Pluseeekitonline (450,242) 99.2%Free shippingFree returns278 sold
- LCD PH Meter Tester Digital Electric Water Test Pen Pocket Hydroponics AquariumOpens in a new window or tab⭐️⭐️⭐️⭐️⭐️ ✅ US Seller ✅High Quality ✅ Fast ShippingBrand New$9.65topfuture2018 (15,639) 99.4%Free shippingFree returns647 sold
- 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter PenOpens in a new window or tabBrand New$20.48Save up to 10% when you buy moreList price: $33.98 40% offTop Rated Pluspartsdomauction (332,932) 99.4%Free shippingFree returns3,117 sold
- PH Meter for Water Hydroponics Digital PH Tester Pen 0.01Hi-Accuracy Pocket SizeOpens in a new window or tabBrand New$11.99Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns135 sold
- Water Tester PH Meter, Digital PH Meter 0-14 PH ATC for Household Drinking PoolOpens in a new window or tabBrand New$11.99 to $75.99Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns
- Water pH Meter&TDS/EC/Temperature Tester for Drinking Water,Aquarium,HydroponicOpens in a new window or tabBrand New$18.99Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns
- 2Pcs Digital LCD PH Meter Pen +TDS EC Water Purity PPM Temperature Tester ToolOpens in a new window or tabBrand New$12.29thebatteryconnection (931,620) 98%Free shippingFree returns1,637 sold
- 4 in 1 PH Tester Soil Water Moisture Light Test Meter for Garden Plant SeedingOpens in a new window or tabBrand New$8.35Save up to 18% when you buy moreTop Rated PlusFree 4 day shippingsailing-global (7,844) 99.1%Free returns51 sold
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$5.59antswms (5) 100%Free shipping
- Digital Electric PH Meter Tester LCD Hydroponics Aquarium Water Pocket Test PenOpens in a new window or tabBrand New$8.99Save up to 15% when you buy moreWas: $17.98 50% offTop Rated Plusgatorcable (257,836) 99.7%Free shippingFree returns
- Handheld Water Quality Hardness Purity Digital LCD Meter 0-9990 PPM TDS TDS-3Opens in a new window or tabBrand New$5.16 to $24.99decken (739) 98.8%Was: $6.45 20% offFree shippingFree returns
- 4 in 1 PH Tester Soil Water Moisture Light Test Meter for Garden Plant SeedingOpens in a new window or tabBrand New$8.25Save up to 15% when you buy morefrentaly (240,228) 98%Free shipping398 sold
- 5in1 LCD Digital PH Soil Tester Plant Lawn Water Moisture Temperature Test MeterOpens in a new window or tab✅8" Probe✅Accurate Data✅Digital Display✅Battery IncludeBrand New$17.48Save up to 10% when you buy moreList price: $31.48 44% offTop Rated Plusnsioutlet (524,586) 99.4%+$0.99 shippingFree returns695 sold
- Portable Digital Water Quality Tester Meter Pen LCD PH/TDS/EC/TEMP Water TesterOpens in a new window or tabBrand New$6.68 to $7.09Save up to 30% when you buy moretmarketq (2,947) 98.7%Free shippingFree returns
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.39elecprog_49 (1,234) 97.6%Free shipping
- 10 in 1 Digital Backlight PH/TDS/EC/ORP/TEMP/SG/Salt Water Quality Tester MeterOpens in a new window or tabBrand New$28.98Save up to 10% when you buy moreList price: $42.98 33% offTop Rated Plusthesiliconvalley (459,872) 99.5%Free shippingFree returns227 sold
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$8.89Save up to 7% when you buy moretheperfectpart (869,033) 99.9%Free shippingFree returns2,378 sold
- 5in1 LCD Soil PH Tester Water Moisture Light Test Meter for Garden Plant SeedingOpens in a new window or tabBrand New$8.99 to $17.45Top Rated Pluspinshion-mall (4,480) 99.8%Free shippingFree returns
- TDS Meter Water Testing F Drinking Water,TDS,Temperature&EC Meter, Carrying CaseOpens in a new window or tabBrand New$11.99Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns
- Water Quality Testing Kit TDS/EC/Temp Pen Meter for Drinking Water,Wine/Beer,SpaOpens in a new window or tabBrand New$19.99Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns
- TDS Meter Digital Water Tester Professional TDS,Temp&EC Meter w/Carrying Case X3Opens in a new window or tabBrand New$26.99Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns
- 3Pcs pH&TDS Meter Water Tester Combo PPM Meter/0-14 PH for Household Water DrinkOpens in a new window or tabBrand New$26.99Top Rated Plusdomesticwaterfilterexpert (27,831) 99.7%Free shippingFree returns
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$5.86gbae-com (2,067) 96.6%Was: $6.17 5% offFree shippingLast one19 sold
- 5 In 1 Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester Tool USOpens in a new window or tabBrand New$19.98Save up to 10% when you buy moreList price: $34.48 42% offTop Rated Plusredtagtown (360,112) 99.4%Free shippingFree returns201 sold
- Professional TDS Meter Digital ppm Quality Water Tester.for Testing RO DrinkingOpens in a new window or tabBrand New$8.99 to $25.99Top Rated Plusalbertsfilterstore (12,106) 99.6%Free shippingFree returns54+ sold
- New ListingPortable 4 In 1 Hydrogen-Rich Test Pen PH/ORP/TEMP Water Quality Meter TesterOpens in a new window or tabPre-Owned$13.99erarms_3584 (1) 0%0 bids · Time left4d 23h left (Sun, 01:51 AM)$27.00Buy It Now+$3.96 shipping
- Handheld Water Quality Hardness Purity Digital LCD Meter 0-9990 PPM TDS TDS-3Opens in a new window or tabBrand New$6.89Save up to 20% when you buy moreTop Rated PlusFree shippingenvistia (37,433) 100%Free returns1,649 sold
- 3-in-1 Soil pH Water Moisture Light Tester Meter For Plants Garden Seeding GrowOpens in a new window or tabBrand New$8.99Save up to 15% when you buy moreWas: $17.98 50% offTop Rated Plusgatorcable (257,836) 99.7%Free shippingFree returns1,203 sold
- 7 in 1 Water Quality Tester Digital LCD Meter Pen PH/TDS/EC/ORP/TEMP/SG/SalinityOpens in a new window or tabBrand New$21.85Top Rated Plusshoppingg_joy (49,398) 98.1%Free shippingFree returns
- TDS Meter Digital Tester Water Quality Testing Kits for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$6.65 to $7.09Buy 1, get 1 50% offhuluseal (258,551) 98.1%Free shippingFree returns
- TDS Meter Digital Water Quality Tester Testing Kits for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$7.45Save up to 15% when you buy moreaz357ttdis (693) 98%Free shippingFree returns
- 4 In 1 LCD Digital Soil Tester PH Water Moisture Temperature Sunlight Plant TestOpens in a new window or tabBrand New$9.89Save up to 7% when you buy moretheperfectpart (869,033) 99.9%Free shippingFree returns183 sold
- Digital Ph Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPMOpens in a new window or tabBrand New$9.99inkcredibleprinting (700,504) 97.8%Free shippingFree returns700 sold
- 3 in 1 Soil Moister Tester Water pH Light Test Meter Kit Gardening Grass PlantsOpens in a new window or tabBrand New$7.22Top Rated PlusWas: $9.26 22% offratedelectronics (19,412) 99.1%Free shippingFree returns442 sold
- PC101 PH Water Quality Detector Swimming Poo PH CL2 Chlorine Tester Level MeterOpens in a new window or tabBrand New$20.89Save up to 20% when you buy moreWas: $21.99 5% offTop Rated Pluslongb_4978 (1,836) 99.3%Free shippingFree returns
- Digital Water Quality Tester TDS EC Electric PPM PH Reader for Drinking WaterOpens in a new window or tabBrand New$6.99roddersdc (4,118) 97.9%Free shippingAlmost gone10 sold
- NEW Sale!! Apera Instruments PH20 Value Pocket pH Tester Kit Water salinity TDSOpens in a new window or tabBrand New44 product ratings - NEW Sale!! Apera Instruments PH20 Value Pocket pH Tester Kit Water salinity TDS$22.99amongstme (4,955) 98.9%+$5.99 shipping
- SALT-3050 Digital Salinity Tester Meter for Salt Water Pool and Koi Fish PondOpens in a new window or tabBrand New$24.49Extra 5% off with couponx-parts (9) 100%Free shippingFree returns3 watchers
- Digital Electric TDS Conductivity Meter Tester Hydroponics Water Test PenOpens in a new window or tabBrand New$4.64peachflower78 (4,998) 98.2%Was: $6.19 25% offFree shippingfrom China
- Portable Digital Water Quality Meter Tester LCD PH/TDS/EC/ORP/TEMP/SG/SalinityOpens in a new window or tabBrand New$6.68 to $22.45sysports2020 (5,053) 97.6%Free shippingFree returns
- 4 in 1 PH Tester Soil Water Moisture Light Test Meter for Garden Plant SeedingOpens in a new window or tabBrand New$8.39Save up to 15% when you buy moreeshippers (223,735) 97.8%Free shipping816 sold
- New ListingConvenient Water Quality Tester TDS Meter Quality Control Laboratory SchoolsOpens in a new window or tabBrand New$14.18super_deal321 (22,903) 98.2%Free shippingFree returns
- TDS PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$4.69thor9985 (1,092) 97%Was: $6.09 23% offFree shippingfrom China
- ZeroWater TDS Digital Meter Tester Zero Water Instant Results On ALL WATERS BLUEOpens in a new window or tabBrand New$11.95Save up to 20% when you buy morerelnai_52 (198) 99.4%+$5.25 shipping
- 5 in 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester PenOpens in a new window or tabBrand New$19.98Save up to 10% when you buy moreList price: $34.48 42% offTop Rated Plusnsioutlet (524,586) 99.4%Free shippingFree returns140 sold
- 4 in 1 PH Tester Soil Water Moisture Light Test Meter for Garden Plant SeedingOpens in a new window or tabBrand New$9.75Save up to 15% when you buy morethebatteryconnection (931,620) 98%Free shippingFree returns177 sold
- 10 in1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter PenOpens in a new window or tabBrand New$28.98Save up to 10% when you buy moreList price: $42.98 33% offTop Rated Plusredtagtown (360,112) 99.4%Free shippingFree returns92 sold
- New ListingWater Quality Detector Test Pen PH Value testerOpens in a new window or tabBrand New$20.48wandering-salesman (3,272) 100%Free shipping
- Water Quality Tester Meter Pen 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/SalinityOpens in a new window or tabBrand New$22.00Top Rated PlusWas: $27.85 21% offeverydaygadgetz (235,904) 99.2%Free shippingFree returns62 sold
- Digital LCD TDS EC TEMP PPM Meter Tester Filter Pen Water Quality Purity 3 IN 1Opens in a new window or tabBrand New$5.79excstore8 (3,552) 99%Free shippingLast one12 sold
- TDS Meter Digital Water Quality Tester Testing Kits for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$7.08Save up to 50% when you buy moretmarketq (2,947) 98.7%Free shippingFree returns205 sold
- Digital TDS3 PPM Meter, Home Drinking Tap Water Quality Purity Test/TesterOpens in a new window or tabBrand New$6.65zedeledeal (930) 98.4%Free shippingFree returns106 sold
- HM Digital TDS-EZ PPM Meter/Tester, Water Quality Purity Test Hydroponics FilterOpens in a new window or tabBrand New$10.99eseasongear (52,295) 99.4%+$5.25 shipping2,765 sold
- PH Meter,Digital PH EC TDS Temp Meter Water Quality Tester for Water HydroponicsOpens in a new window or tabBrand New$9.99 to $16.99Save up to 15% when you buy moreWas: $19.21 48% offTop Rated Plusalbertsfilterstore (12,106) 99.6%Free shippingFree returns
- 4in1 TDS Meter Digital Tester Water Quality Testing for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$7.15big-sales-store2017 (9,380) 97.9%Free shippingFree returns
- LCD Digital Water Quality Tester TDS EC/PH/PH PH Paper Meter&TEMP Swimming PoolsOpens in a new window or tabBrand New$9.99 to $13.32Top Rated Plusexcellent-honor-sales (7,981) 99.9%Free shippingFree returns54+ sold
- Digital PH Meter Tester Portable Pocket Water Pool Aquarium Wine HydroponicOpens in a new window or tabBrand New$8.98Save up to 10% when you buy moreTop Rated PlusFree 3 day shippinghanksminerals (98,899) 97.9%Free returns513 sold
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$7.31Top Rated Pluscogolloo (818) 98.3%Free shippingFree returns
- Handheld Water Quality Hardness Purity Digital LCD Meter 0-9990 PPM TDS TDS-3Opens in a new window or tabBrand New$5.59 to $25.96dynast_56 (24,365) 98.6%Was: $6.99 20% offFree shippingFree returns
- Pool Salt Tester & pH Meter, Braxlee Digital MeterOpens in a new window or tabBrand New$31.99braxlee2022 (11) 100%Free shipping
- VIVOSUN TDS Tester 3-in-1 TDS EC & Temperature Meter Digital Water Quality TDSOpens in a new window or tabBrand New$11.99Save up to 9% when you buy morevivosun-sgs (4,257) 98.9%Free shippingFree returns
- VIVOSUN PH Meter Digital PH Tester Pen 0.01 High Accuracy Water Quality TesterOpens in a new window or tabBrand New$16.99vivosun-sgs (4,257) 98.9%Free shippingFree returns190 sold
- Electrolyzer Water Tester Professional TDS Water Quality Tester Equipment US/EUOpens in a new window or tabBrand New$14.00Buy 1, get 1 15% off with couponWas: $15.39 9% offhifewind (283) 97.6%Free shipping
- VIVOSUN PH Meter Digital PH Tester Pen 0.01 High Accuracy Water Quality TesterOpens in a new window or tabBrand New$16.99Save up to 9% when you buy morevivosun-sgs (4,257) 98.9%Free shippingFree returns52 sold
- 5 in 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester PenOpens in a new window or tabBrand New$16.99elecprog_49 (1,234) 97.6%Free shipping
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