9,200+ results for water tester
- 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 (49,571) 98.2%Free returns2,211 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 (360,588) 99.4%Free shippingFree returns1,143 sold
- 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 (49,571) 98.2%Free shippingFree returns150 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 (333,191) 99.4%Free shippingFree returns3,126 sold
- TDS Meter Digital Water Tester,ppm Meter LCD Display F Drinking Water,AquariumsOpens in a new window or tabBrand New$9.99Top Rated PlusWas: $13.32 25% offdomesticwaterfilterexpert (27,964) 99.6%Free shippingFree returns128 sold
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$5.99elecprog_49 (1,363) 97.5%Free shippingAlmost gone57 sold
- 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 (912) 98.4%Was: $6.45 20% offFree shippingFree returns
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.71Save up to 15% when you buy moreWas: $7.90 15% offwincen-1 (20,334) 98%Free shippingFree returns285 sold
Picked For You
Sponsored | Top selling items from highly rated sellers with 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 (258,480) 99.6%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$8.35Save up to 18% when you buy moreTop Rated PlusFree shippingsailing-global (7,899) 99.1%Free returns117 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 (451,317) 99.1%Free shippingFree returns288 sold
- 5 in 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester PenOpens in a new window or tabBrand New$17.99elecprog_49 (1,363) 97.5%Free shipping9 watchers
- TDS Meter Digital Tester Water Quality Testing Kits for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$0.99pokemonworld24 (29) 100%0 bids · Time left10h 28m left (Today 02:01 PM)+$4.43 shipping
- 5 in 1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester PenOpens in a new window or tabBrand New$36.99vivosun-sgs (4,421) 98.9%Free shippingFree returns137 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$21.48Save up to 10% when you buy moreList price: $30.98 31% offTop Rated Plusnsioutlet (525,700) 99.3%Free shippingFree returns372 sold
- 5 in1 LCD Digital PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester PenOpens in a new window or tabBrand New$16.98Save up to 8% when you buy moreWas: $21.23 20% offszyax-24 (153) 98.1%Free shippingAlmost gone19 sold
- Handheld Water Quality Hardness Purity Digital LCD Meter 0-9990 PPM TDS TDS-3Opens in a new window or tabBrand New$5.16 to $47.69luckypo24 (444) 98.1%Was: $6.45 20% offFree shippingFree returns
- 5 in 1 Digital LCD PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester PenOpens in a new window or tabBrand New$16.99antswms (53) 98.2%Free shipping
- PH Meter Digital PH Tester Pen 0.01 High Accuracy Water Quality TesterOpens in a new window or tabBrand New$13.59vivosun-sgs (4,421) 98.9%Was: $16.99 20% offFree shippingFree returns201 sold
- 2Pcs Digital LCD PH Meter Pen +TDS EC Water Purity PPM Temperature Tester ToolOpens in a new window or tabBrand New$12.29Top Rated Plusthebatteryconnection (931,849) 98%Free shippingFree returns1,650 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 (360,588) 99.4%Free shippingFree returns209 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 (15,752) 99.4%Free shippingFree returns653 sold
- 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 (241,154) 97.9%Free shipping458 sold
- 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 (24,383) 98.6%Was: $6.99 20% offFree 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 (727) 97.9%Free shippingFree returns
- Digital PH Meter Tester 0.1 Accuracy PH Meter for Water etc. Portable PH MeterOpens in a new window or tabBrand New$5.37wezha-84 (3,613) 99.5%Was: $5.90 9% offFree shippingLast one38 sold
- Digital TDS3 PPM Meter, Home Drinking Tap Water Quality Purity Test/TesterOpens in a new window or tabBrand New$6.65zedeledeal (954) 98.4%Free shippingFree returns108 sold
- 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 (460,392) 99.5%Free shippingFree returns232 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 (1,899) 99.2%Free shippingFree returns
- 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 (360,588) 99.4%Free shippingFree returns98 sold
- 3-in-1 Digital PH/TDS/TEMP Meter w/ ATC ±0.1 PH Water Quality Tester PenOpens in a new window or tabBrand New$30.39vivosun-sgs (4,421) 98.9%Was: $37.99 20% offFree shippingFree returns
- VIVOSUN PH Meter Digital PH Tester Pen 0.01 High Accuracy Water Quality TesterOpens in a new window or tabBrand New$13.59vivosun-sgs (4,421) 98.9%Was: $16.99 20% offFree shippingFree returns57 sold
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$5.59antswms (53) 98.2%Free shipping2 watchers
- 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 (37,605) 100%Free returns1,652 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 (4,702) 99.8%Free shippingFree returns
- New ListingNEW Sale Apera Instruments PH20 Value Pocket pH Tester Kit Water salinity TDS .Opens in a new window or tabBrand New$22.99amongstme (4,968) 98.9%+$5.99 shipping
- 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 (258,480) 99.6%Free shippingFree returns1,225 sold
- Divolight Aqua Water Tester PHOpens in a new window or tabOpen Box$5.00tb0ck (179) 100%0 bids · Time left7h 47m left (Today 11:20 AM)+$4.38 shipping
- Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen KitsOpens in a new window or tabBrand New$6.68 to $22.45Save up to 10% when you buy morebig-sales-store2017 (9,426) 97.9%Free shippingFree returns
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.69inn_2720 (198) 99%Free shipping104 sold
- New ListingElectrolyzer Water Tester Professional TDS Water Quality Tester Equipment US/EUOpens in a new window or tabBrand New$8.63 to $10.52Buy 1, get 1 20% off with couponWas: $9.59 10% offauto-opc (144) 96.2%Free shipping
- Water Quality Tester Electronic Z-Tester HM DigitalOpens in a new window or tabBrand New$3.99warrregi (2,318) 100%+$6.60 shipping
- 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 (3,019) 98.7%Free shippingFree returns
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$6.74Top Rated PlusWas: $8.99 25% offcablewirecanada (69,689) 96.7%Free shippingFree returns352 sold
- Digital Electric PH Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$8.99Save up to 5% when you buy moreWas: $11.99 25% offTop Rated Pluswater-all-pure (12,438) 99.7%Free shippingFree returns2,077 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 (871,421) 99.9%Free shippingFree returns2,381 sold
- Upgraded PH TDS Meter Combo Water Tester Kits for Drinking Water Aquarium PoolOpens in a new window or tabBrand New$8.99 to $14.24Top Rated PlusWas: $11.99 25% offdomesticwaterfilterexpert (27,964) 99.6%Free shippingFree returns
- TDS Meter Digital Water Quality Tester Testing Kits for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$7.29Save up to 20% when you buy morefamily432 (1,055) 97.6%Free shipping
- New Listing2024 All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EOpens in a new window or tabOpen Box$8.99fromheretothere13 (242) 100%+$3.00 shipping
- PH Meter Digital PH Tester Pen 0.01 High Accuracy Water Quality TesterOpens in a new window or tabBrand New$6.03Save up to 15% when you buy moreWas: $6.70 10% offyallp_47 (3,846) 98%Free shipping50 sold
- New Listingph water tester kitOpens in a new window or tabPre-Owned$5.00bowmanlm2 (64) 100%0 bids · Time left6d 12h left (Fri, 04:09 PM)+$4.31 shipping
- Digital Ph Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPMOpens in a new window or tabBrand New$9.99Top Rated Plusinkcredibleprinting (700,721) 97.8%Free shippingFree returns700 sold
- 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 (258,592) 97.9%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 39% when you buy morefdtele (2,304) 99.1%Free shippingFree returns
- 4 In 1 LCD Digital Soil Tester PH Water Moisture Temperature Sunlight Plant TestOpens in a new window or tabBrand New$9.99housing753 (3,371) 98.9%Free shipping18 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 (525,700) 99.3%+$0.99 shippingFree returns707 sold
- HM PH-80 Water TesterOpens in a new window or tabPre-Owned$9.99diamondsandrust45 (65) 100%0 bids · Time left5h 56m left (Today 09:29 AM)$14.99Buy It Now+$8.45 shipping
- TDS PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$4.69thor9985 (1,137) 96.7%Was: $6.09 23% offFree shippingfrom China
- Digital TDS3 PPM Meter Tester Home Drinking Tap Water Quality Purity Test Pen USOpens in a new window or tabBrand New$6.65Top Rated Plushuluseal (258,592) 97.9%Free shippingFree returns160 sold
- TDS Digital Salinity Tester/Meter for Salt Water Pool & Fish/Koi Pond TestingOpens in a new window or tabBrand New$11.90ketr-6726 (1,209) 98.7%Free 3-4 day shipping
- 6in1 Multi-Parameter Water Quality Test Meter PH EC SALT TDS PPM TEMP S.G TesterOpens in a new window or tabBrand New$69.90Top Rated PlusList price: $91.90 24% offyessources (56,101) 98.4%Free shippingFree returns59 sold
- eSeasongear ZW2 TDS Meter, Replacement for Zerowater Tester, BlueOpens in a new window or tabBrand New$6.99eseasongear (52,313) 99.4%+$5.25 shipping1,531 sold
- pH Meter, Digital 4 in 1 PH EC TDS Temp Meter for Water Hydroponics, WaterproofOpens in a new window or tabBrand New$11.99Save up to 20% when you buy moreyedael (12,270) 99.1%Free shippingFree returns
- Digital Electric TDS Conductivity Meter Tester Hydroponics Water Test PenOpens in a new window or tabBrand New$4.64peachflower78 (5,068) 98%Was: $6.19 25% offFree shippingfrom China
- TDS Meter 3 Quality Water TesterOpens in a new window or tabBrand New$8.00Save up to 13% when you buy morehooseye (233) 100%Free shipping
- Tds Meter Digital Water Quality Tester Testing Kits for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$9.99Save up to 15% when you buy moreWas: $16.11 38% offTop Rated Plusalbertsfilterstore (12,181) 99.6%Free shippingFree returns297 sold
- Water Electrolyzer Quick Water Quality Tester Water Purity Filter Measuring ToolOpens in a new window or tabBrand New$13.00Save up to 25% when you buy morezyradurm0 (18) 87.5%Free shipping
- Multifunction Water Quality TesterOpens in a new window or tabBrand New$15.00turboguy90 (225) 100%Free shipping
- HM Digital TDS-4 TDS Meter, HMD Water Quality Purity TesterOpens in a new window or tabBrand New$11.99unlimitedqwest (108) 100%Free shippingFree returns14 sold
- DIGITAL TDS Meters PPM Water Quality Tester Hand-held for Home Drinking WaterOpens in a new window or tabBrand New$12.99Top Rated Plusexcellent-honor-sales (8,022) 99.9%Free shippingFree returns
- ZeroWater TDS Digital Meter Tester Zero Water Instant Results BLUEOpens in a new window or tabPre-Owned$4.00epicfinder (105) 100%+$6.33 shipping
- 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 (224,837) 97.8%Free shipping824 sold
- 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 (871,421) 99.9%Free shippingFree returns190 sold
- Digital LCD PH Meter Pen+TDS EC Water Purity PPM Temperature Tester Tool 1PC/2PCOpens in a new window or tabBrand New$9.39Top Rated Plussailing-global (7,899) 99.1%Free shippingFree returns
- 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 (49,571) 98.2%Free shippingFree returns
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