4,000+ results for tds testers
- 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 (866) 98.7%Was: $31.24 20% offFree shippingFree returns
- 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 (4,375) 98.9%Free shippingFree returns136 sold
- 5 in 1 Digital LCD PH/TDS/EC/Salinity/Temperature Water Quality Meter Tester PenOpens in a new window or tabBrand New$17.99antswms (29) 96.8%Free shipping
- 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 (1,322) 97.5%Free shipping
- 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 (49,528) 98.2%Free returns2,203 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 (27,927) 99.6%Free shippingFree returns126 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 (360,465) 99.4%Free shippingFree returns1,135 sold
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$5.99elecprog_49 (1,322) 97.5%Free shippingAlmost gone57 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 (49,528) 98.2%Free shippingFree returns145 sold
- 2Pcs Digital LCD PH Meter Pen +TDS EC Water Purity PPM Temperature Tester ToolOpens in a new window or tabBrand New$12.29thebatteryconnection (931,785) 98.1%Free shippingFree returns1,644 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 (333,129) 99.4%Free shippingFree returns3,124 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 (360,465) 99.4%Free shippingFree returns205 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 (451,011) 99.2%Free shippingFree returns286 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 (24,374) 98.6%Was: $32.45 20% offFree 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 $47.69luckypo24 (397) 98.1%Was: $59.61 20% offFree shippingFree returns
- Apera Instruments AI213 Value Series TDS20 Waterproof TDS Pocket Tester KitOpens in a new window or tabBrand New$40.00johnsonav (300) 98.3%Free shipping2 watchers
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$5.59antswms (29) 96.8%Free 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 (2,992) 98.6%Free shippingFree returns
- Digital Ph Meter TDS Tester Aquarium Pool Hydroponic Water Monitor 0-9999 PPMOpens in a new window or tabBrand New$9.99inkcredibleprinting (700,666) 97.8%Free shippingFree returns700 sold
- 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 (56,094) 98.4%Free shippingFree returns59 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 (460,246) 99.5%Free shippingFree returns231 sold
- VIVOSUN TDS Tester 3-in-1 TDS EC & Temperature Meter Digital Water Quality TDSOpens in a new window or tabBrand New$11.19vivosun-sgs (4,375) 98.9%Was: $13.99 20% offFree shippingFree returns
- 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 (37,563) 100%Free returns1,652 sold
- 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 (258,578) 97.9%Free shippingFree returns160 sold
- 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 (718) 97.8%Free shippingFree returns
- PH Meter, TDS&EC PPM Meter Water Tester for Household Drinking,Pool and AquariumOpens in a new window or tabBrand New$8.99 to $29.99Top Rated PlusWas: $11.99 25% offwater-all-pure (12,413) 99.7%Free shippingFree returns74+ 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 (7,880) 99.1%Free shippingFree returns
- 4 In 1 Tds Ph Meterec Temperature Meter Ppm Meterstds Water Tester For Tap DrinkOpens in a new window or tabBrand New$9.37maxdostore (2,703) 99.3%Free shippingFree returnsLast one6 sold
- Digital PH Meter and TDS Meter Water Quality Tester Auto Calibration AquariumOpens in a new window or tabBrand New$29.99Save up to 20% when you buy moremicmi-com (15,104) 97.4%Free shipping1,070 sold
- PH Meter,Digital PH EC TDS Temp Meter Water Quality Tester for Water HydroponicsOpens in a new window or tabBrand New$19.21 to $32.67Save up to 15% when you buy moreTop Rated PlusFree shippingalbertsfilterstore (12,164) 99.6%Free returns69+ 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 (360,465) 99.4%Free shippingFree returns95 sold
- Water Quality Tester,TDS Meter,EC Meter&Temperature Meter 3in1 Accurate&ReliableOpens in a new window or tabBrand New$7.99 to $19.49Top Rated PlusWas: $25.99 25% offexcellent-honor-sales (8,010) 99.9%Free shippingFree returns
- 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 (139) 98.6%Free shipping17 sold
- 4 in 1 PH TDS EC TEMP Meter Digital Test Pen Home Drinking Water Quality TesterOpens in a new window or tabBrand New$18.98Save up to 10% when you buy moreList price: $28.98 35% offTop Rated Plusnsioutlet (525,384) 99.4%Free shippingFree returns69 sold
- HM Digital TDS-EZ PPM Meter/Tester, Water Quality Purity Test Hydroponics FilterOpens in a new window or tabBrand New$10.99eseasongear (52,304) 99.4%+$5.25 shipping2,765 sold
- Digital TDS3 PPM Meter, Home Drinking Tap Water Quality Purity Test/TesterOpens in a new window or tabBrand New$6.65zedeledeal (943) 98.4%Free shippingFree returns106 sold
- 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 (9,414) 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 (2,280) 99.1%Free shippingFree returns
- 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 (4,375) 98.9%Was: $37.99 20% offFree shippingFree returns
- 4-PACK TDS&EC Meter Digital Water QualityTester PPM F Hydroponics Aquarium PoolOpens in a new window or tabBrand New$29.99Top Rated PlusWas: $39.99 25% offexcellent-honor-sales (8,010) 99.9%Free shippingFree returns42 sold
- 2024 Upgraded TDS Meter Digital Water Tester Professional 3in1 TDS TemperatureOpens in a new window or tabBrand New$22.69onesourceit (4,000) 100%Free shippingLast one
- 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 (298,458) 98.3%Free shippingFree returns395 sold
- TDS HOME FOREST DIGITAL WATER TESTER MODEL YL-TDS2-A ZZ7-3Opens in a new window or tabOpen Box$14.95Top Rated Plusg2g_liquidators (9,525) 99.6%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 (525,384) 99.4%Free shippingFree returns141 sold
- Digital Water Quality Tester TDS EC Electric PPM PH Reader for Drinking WaterOpens in a new window or tabBrand New$6.99roddersdc (4,148) 97.8%Free shippingAlmost gone10 sold
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test Pen USOpens in a new window or tabBrand New$6.65Buy 2, get 2 freeTop Rated PlusFree shippinghuluseal (258,578) 97.9%Free returns35 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 (27,927) 99.6%Free shippingFree returns
- 3-in-1 TDS Meter Digital Water Tester 0-9999ppm Hydroponics Accurate PPM MeterOpens in a new window or tabBrand New$7.09yteledeal (4,578) 98.1%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 (5,092) 97.7%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 (1,123) 96.9%Was: $6.09 23% offFree shippingfrom China
- Digital LCD PH Meter Pen TDS EC Water Purity PPM Temperature Tester ToolOpens in a new window or tabBrand New$9.02 to $9.92Top Rated Pluscogolloo (837) 98.4%Free shippingFree returns
- Digital pH/TDS Meter with ATC pH Tester, 3 in 1 pH TDS Temp 0.01 Resolution HighOpens in a new window or tabBrand New$17.92Save up to 18% when you buy moreavo6cado (609) 99.5%Free shippingFree returns
- 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 Plusthesiliconvalley (460,246) 99.5%Free shippingFree returns213 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 (228,273) 97.7%Free shipping
- Tds Meter Digital Water Quality Tester ppm Affordable&Reliable forDrinking WaterOpens in a new window or tabBrand New$9.99Top Rated Plusexcellent-honor-sales (8,010) 99.9%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 (258,578) 97.9%Free shippingFree returns
- TDS3 PPM Meter Digital Tester Home Drinking Tap Water Quality Purity Test TesterOpens in a new window or tabBrand New$6.53fur-better001 (45,270) 96.8%Free shippingFree returns
- 8 in 1 Digital PH EC Meter LCD Tester Pocket Hydroponics Aquarium Water Test PenOpens in a new window or tabBrand New$22.89ark_auto_parts (1,797) 99.3%Free shippingFree returns
- 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 (12,212) 99.1%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 (8,010) 99.9%Free shippingFree returns54+ sold
- TDS-3 Meter 0 - 9990 ppm Handheld Measurement LCD Digital Water Purity TestersOpens in a new window or tabBrand New$8.38Save up to 8% when you buy moreWas: $9.98 16% offTop Rated Plusgocartgo (3,690) 93.8%Free shippingFree returns
- Digital Electric TDS Conductivity Meter Tester Hydroponics Water Test PenOpens in a new window or tabBrand New$4.64peachflower78 (5,041) 98%Was: $6.19 25% offFree shippingfrom China
- Water TDS Meter Digital LCD Display Water Quality Tester for Drinking Water PoolOpens in a new window or tabBrand New$6.69 to $27.79tmarketq (2,992) 98.6%Free shippingFree returns
- TDS-3 Water Quality Tester Filter Pen or Drinking Water Purity Test AquariumsOpens in a new window or tabBrand New$7.33ggrfall (254) 97.4%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 (49,528) 98.2%Free shippingFree returns
- 3-in-1 TDS Meter Digital Tester Water Quality Testing Kits for Drinking Water USOpens in a new window or tabBrand New$6.89 to $9.89Save up to 15% when you buy moredmarkety (1,576) 98.6%Free shippingFree returns
- 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 (12,164) 99.6%Free shippingFree returns297 sold
- New Listing 4-in-1 Digital pH Meter w/ pH/TDS/EC/Temp Function, 0-14.0 pH MeasuremenOpens in a new window or tabOpen Box$20.00trotngt47 (0) 0%+$4.28 shipping
- Bluelab Conductivity Pen PPM EC TDS Hydroponic Meter Aquarium Calibration WaterOpens in a new window or tabBrand New$80.00hydro4less.io (1,541) 100%Free shipping100 sold
- Portable Digital Ph Meter + TDS Water Tester Aquarium Pool Hydroponic 0-9999 PPMOpens in a new window or tabBrand New$7.19Save up to 15% when you buy moreaz357ttdis (718) 97.8%Free shippingFree returns
- HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDSOpens in a new window or tabBrand New$19.19boostedstreet (5,755) 97.3%Free shippingFree returns
- 3Pcs Digital LCD PH Meter Pen +TDS EC Water Purity PPM Temperature Tester ToolOpens in a new window or tabBrand New$14.99Top Rated PlusWas: $19.99 25% offwater-all-pure (12,413) 99.7%Free shippingFree returns1,851 sold
- Bluelab Combo Meter pH EC TDS PPM Temp CF -Blue Lab nutrient electrodeOpens in a new window or tabPre-Owned$100.00antshel-45 (16) 90%+$10.42 shipping
- pH and TDS Meter ComboOpens in a new window or tabBrand New$12.79vivosun-sgs (4,375) 98.9%Was: $15.99 20% offFree shippingFree returns
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