9,400+ results for water tester
- 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 (359,928) 99.4%Free shippingFree returns1,104 sold
- TDS Meter Digital Water Tester Professional 3-in-1 TDS,Temperature EC MeterOpens in a new window or tabBrand New$9.99Top Rated PlusWas: $13.32 25% offexcellent-honor-sales (7,965) 99.9%Free shippingFree returns142 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 (49,342) 98.1%Free shippingFree returns138 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 (49,342) 98.1%Free returns2,191 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 (27,785) 99.7%Free shippingFree returns111 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 shippingsailing-global (7,834) 99%Free returns
- 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 (449,870) 99.2%Free shippingFree returns276 sold
- New ListingHM Digital TDS-3 Water Quality Meter With Carrying Case Tester Purity PenOpens in a new window or tabOpen Box$8.50thisandthatstorex5 (2,706) 100%Free shipping
Picked For You
Sponsored | Top selling items from highly rated sellers with free shipping- 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 (524,174) 99.4%+$0.99 shippingFree returns693 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 (332,831) 99.4%Free shippingFree returns3,111 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 (931,535) 98%Free shippingFree returns1,626 sold
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$6.17gbae-com (2,034) 96.6%Free shippingLast one19 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 (239,915) 98%Free shipping385 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 (1,819) 99.3%Free shippingFree returns
- 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 (868,137) 100%Free shippingFree returns2,372 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 (2,907) 98.6%Free shippingFree returns205 sold
- 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 (37,370) 100%Free returns1,648 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 (12,083) 99.6%Free shippingFree returns54+ 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 (459,665) 99.5%Free shippingFree returns227 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 (4,944) 98.9%+$5.99 shipping
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$4.99elecprog_49 (1,201) 97.5%Free shipping45 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 (359,928) 99.4%Free shippingFree returns198 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 (868,137) 100%Free shippingFree returns177 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 (2,907) 98.6%Free shippingFree returns
- 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 (257,622) 99.7%Free shippingFree returns1,188 sold
- 4in1 TDS PPM Meter Digital Tester Home Drinking Water Quality Purity Test TesterOpens in a new window or tabBrand New$6.47durpa_9661 (854) 91.6%Free shippingLast one8 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 (4,399) 99.8%Free shippingFree returns
- 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 (257,622) 99.7%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 (258,533) 98.2%Free shippingFree returns
- Digital TDS3 PPM Meter, Home Drinking Tap Water Quality Purity Test/TesterOpens in a new window or tabBrand New$6.65zedeledeal (918) 98.4%Free shippingFree returns106 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 (49,342) 98.1%Free shippingFree returns8 watchers
- 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 (359,928) 99.4%Free shippingFree returns92 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 moreTop Rated PlusFree shippingthebatteryconnection (931,535) 98%Free returns176 sold
- 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 (223,389) 97.8%Free shipping815 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$8.99topfuture2018 (15,600) 99.4%Free shippingFree returns642 sold
- Water Electrolyzer Quick Water Quality Tester Electrolysis Testing EquipmentOpens in a new window or tabBrand New$12.53tecknoguys (525) 98.3%Free shipping
- 4 in 1 PH Tester Soil Water Moisture Light Test Meter for Garden Plant SeedingOpens in a new window or tabBrand New$8.19congrat-a (212) 96.9%Free 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 (700,428) 97.8%Free shippingFree returns698 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 (12,083) 99.6%Free shippingFree returns61+ sold
- 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 (4,209) 98.8%Free shippingFree returns
- HM Digital TDS-EZ PPM Meter/Tester, Water Quality Purity Test Hydroponics FilterOpens in a new window or tabBrand New$15.99eseasongear (52,290) 99.4%Free shipping2,765 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 (19,370) 99.1%Free shippingFree returns438 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 15% when you buy moreaz357ttdis (691) 98%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$8.39miniduino (299,572) 98.2%Free shipping704 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 (680) 98.6%Was: $6.45 20% offFree 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 (9,362) 97.9%Free shippingFree returns
- 4 In 1 LCD Digital Soil Tester PH Water Moisture Temperature Sunlight Plant TestOpens in a new window or tabBrand New$8.19housing753 (3,300) 98.9%Free shipping
- Multifunction Water Quality TesterOpens in a new window or tabBrand New$15.00turboguy90 (224) 100%Free shipping
- 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 (27,785) 99.7%Free shippingFree returns134 sold
- Pool Salt Tester & pH Meter, Braxlee Digital MeterOpens in a new window or tabBrand New$31.99braxlee2022 (10) 100%Free shipping
- 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 (12,050) 99.1%Free shippingFree returns
- TDS-3 Meter Temp PPM Digital LCD Tester Tap Water Quality Filter Purity 0-9990Opens in a new window or tabFree Shipping* USA Seller* Hydroponic Drinking Pool SpaBrand New$6.47Save up to 7% when you buy moreget*in*the*game (298,130) 98.4%Free shippingFree returns395 sold
- TDS Meter Digital Water Quality Tester Testing Kits for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$7.99Save up to 20% when you buy moreWas: $9.99 20% offbeiyueji2 (259) 96.4%Free shipping
- Digital Electric TDS Conductivity Meter Tester Hydroponics Water Test PenOpens in a new window or tabBrand New$4.64peachflower78 (4,985) 98.3%Was: $6.19 25% offFree shippingfrom China
- 4 In 1 Tds Ph Meterec Temperature Meter Ppm Meterstds Water Tester For Tap DrinkOpens in a new window or tabBrand New$9.20maxdostore (2,626) 99.4%Free shippingFree returns
- 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 (27,785) 99.7%Free shippingFree returns
- Water Electrolyzer Test Electrolysis Water Purity Level Meter PH Tester US StockOpens in a new window or tabBrand New$10.99bingospace (1,397) 99.1%Free shipping53 sold
- Digital PPM Hydroponic Water Quality Tester 3-in-1 Temperature EC TDS PPM MeterOpens in a new window or tabBrand New$9.99Save up to 10% when you buy moreeconoestore (228,019) 97.8%Free shipping
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$8.36Save up to 10% when you buy moreWas: $10.07 17% offbeautiful1005 (0) 0%Free shipping
- TDS Digital Salinity Tester/Meter for Salt Water Pool & Fish/Koi Pond TestingOpens in a new window or tabBrand New$11.99omsh25 (300) 98.6%Free shipping2 watchers
- Digital Water Quality Test Pen EC TDS Tester Water Hardness Purity TestOpens in a new window or tabOpen Box$9.00tomtheatariguy (66) 100%Free shipping
- 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 Pluseeekitonline (449,870) 99.2%Free shippingFree returns
- 3 in1 Soil Tester Water PH Moisture Light Test Meter Kit For Garden Plant FlowerOpens in a new window or tabBrand New$6.99 to $7.59Top Rated Pluspoony-46 (4,140) 98%Free shippingFree returns98+ sold
- TDS HOME FOREST DIGITAL WATER TESTER MODEL YL-TDS2-A ZZ7-3Opens in a new window or tabOpen Box$14.95g2g_liquidators (9,458) 99.7%Free shippingFree returns
- 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 (5,027) 97.6%Free shippingFree returns
- 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 (524,174) 99.4%Free shippingFree returns140 sold
- TDS Digital Salinity Tester/Meter for Salt Water Pool & Fish/Koi Pond TestingOpens in a new window or tabBrand New$12.28brybizness (278) 96%Free shippingFree returnsAlmost gone21 sold
- 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 Water Quality Tester TDS EC Electric PPM PH Reader for Drinking WaterOpens in a new window or tabBrand New$6.99roddersdc (4,106) 97.9%Free shipping4 watchers
- PH&TDS Digital Meter,TDS EC Temperature Water Quality Tester 0-9999ppm,0-14 PHOpens in a new window or tabBrand New$8.99 to $14.99Top Rated Plusdomesticwaterfilterexpert (27,785) 99.7%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 (69,497) 96.6%Free shippingFree returns348 sold
- Electrolyzer Water Tester Professional TDS Water Quality Tester Equipment US/EUOpens in a new window or tabBrand New$15.39Buy 1, get 1 15% off with couponhifewind (271) 97.5%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 (12,083) 99.6%Free shippingFree returns296 sold
- pH & TDS Meter Combo Water Tester TDS/EC/Temp F Hydroponics,Household DrinkingOpens in a new window or tabBrand New$19.99Save up to 15% when you buy moreTop Rated PlusFree shippingalbertsfilterstore (12,083) 99.6%Free returns20 sold
- Tds Meter Digital Water Quality Tester Testing Kits for Drinking Water 0-9990ppmOpens in a new window or tabBrand New$7.09Save up to 15% when you buy moreyumarket6919 (3,543) 98.5%Free shippingFree returns
- Items Per Page