{"id":48834,"key":"Field-based_water_quality_testing_equipment_survey","title":"Field-based water quality testing equipment survey","latest":{"id":1223651,"timestamp":"2026-01-08T23:06:04Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"{{MOST}}\n\n[[File:Tap water 2.jpg|thumb]]\n\n{{Project data\n| type = Water testing system\n}}\n\nThis page is a survey of all the commercially available water quality testing equipment. Please add to the table if you are aware of tools that are not yet listed.\n\nMake multiple tables sort by class. Read [https://en.wikipedia.org/wiki/Water_quality] for background.\n\n{| class=\"wikitable\" border=\"2\"\n|+ Compilation of Water Testing hardware for TDS/TSS\n! Product/Link\n! Testing Type\n! Specifications/ranges\n! OS\n! Price\n|-\n| [http://www.walmart.com/ip/HM-Digital-Meters-Handheld-Water-Total-Dissolved-Solids-Tester-AP-1/21958455#ProductDetail HM Digital Meters Handheld Water Total Dissolved Solids Tester - AP-1]\n|\n| Range: 0-5000 ppm (mg/L)<br>Resolution: 1 ppm\n|\n| $20.80\n|-\n| [http://www.newegg.com/Product/Product.aspx?Item=9SIA1KT0PM7894&nm_mc=KNC-GoogleMKP&cm_mmc=KNC-GoogleMKP-_-pla-_-Electrical+Tools-_-9SIA1KT0PM7894 Digital HM TDS0-999 Meter/ Tester, Water/ ppm/ Purity]\n|\n| Range:0-9990ppm/mg/ L<br>Accuracy:±2%\n|\n| $14.99\n|-\n| [http://www.ezpoolz.com/products/sgs-instruments-salinity-tds-meter-sltd-100.html?gclid=CPqC0deFqLgCFYhAMgodH3IAew TDS Test Meter by SGS Instrument]\n|\n| Range-500-10,000 PPM<br>Accuracy- 2% of Scale\n|\n| $299.00\n|}\n\n{| class=\"wikitable\" border=\"2\"\n|+ Compilation of Water Testing hardware for DO\n! Product/Link\n! Testing Type\n! Specifications/ranges\n! OS\n! Price\n|-\n| [http://www.affordablephmeters.com/milwaukee-instruments/mw/mw600.asp MW600 Portable Meter]\n|\n| Range:0.0 to 19.9 mg/l<br>Resolution:0.1 mg/l<br>Accuracy:±1.5% Full Scale\n|\n| $169.00\n|-\n| [http://www.grainger.com/Grainger/LAMOTTE-Water-Quality-Testing-Kit-4EVY6?Pid=search Water Testing Kit, Oxygen]\n|\n| Range:0.2 to 10 PPM<br>Sensitivity:0.2 PPM\n|\n| $74.30\n|}\n\n{| class=\"wikitable\" border=\"2\"\n|+ Compilation of Water Testing hardware for ORP\n! Product/Link\n! Testing Type\n! Specifications/ranges\n! OS\n! Price\n|-\n| [http://www.filtersfast.com/P-HM-Digital-ORP-200-Waterproof-ORP-Meter.asp?gclid=CNalwsX_p7gCFek7Mgod0jwAoA HM Digital ORP-200 ORP Meter Water Tester w/ Temp.]\n|\n| Accuracy: 0.5% (+/- 2mV)<br>Range: -999 to +1000 mV<br>Resolution: 1 mV\n| no\n| $92.99\n|-\n| [http://www.saveonpoolsupplies.com/shopping/product.aspx?productid=SKU53435&scode=I1SOPSSP&e7=Y&e8=A8904&pcode=103&keyword=A8904 Ultrapen PT3 Digital ORP and Temperature Meter]\n|\n| Accurate (+/- 10mV ORP)\n| no\n| $179.99\n|}\n\n{| class=\"wikitable\" border=\"2\"\n|+ Compilation of Water Testing hardware for conductivity\n! Product/Link\n! Testing Type\n! Specifications/ranges\n! OS\n! Price\n|-\n| [http://www.davis.com/Product/Oakton_EcoTestr_EC_Low_pocket_conductivity_tester/WO-35462-30?referred_id=3388&gclid=CIfKw4Tvp7gCFc5FMgodlEgAhg Oakton EcoTestr EC Low pocket conductivity tester]\n| Tester\n| Range:0µS to 1999 mS<br>Resolution:10 µS; 0.10 mS<br>Accuracy:±1% full-scale\n| no\n| $60.00\n|-\n| [http://web.archive.org/web/20130609065135/http://www.omega.com/ppt/pptsc.asp?ref=CDB210_215&Nav=greee03 CDB-210]\n| analog meter\n| 0.2 to 20,000 mS (0.1 to 10,000 ppm)\n|\n|\n|-\n| [http://www.thesciencefair.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=1976-25&Category_Code=EAE Conductivity Meter Tester]\n|\n| 10 levels\n|\n| $24.50\n|-\n| [http://www.labdepotinc.com/Product_Details~id~376~pid~12859.aspx?gclid=CMP9hM6jqLgCFUxgMgodXlsAjQ Rugged waterproof conductivity meter]\n|\n| Range:0.0 to 199.9uS & 0 to 1999uS & 0.00 to 19.99mS & 0.0 to 199.9mS<br>Resolution:0.1uS & 1uS & 0.01mS & 0.1mS<br>Accuracy:+/-1% full scale\n|\n| $444.60\n|}\n\n{| class=\"wikitable\" border=\"2\"\n|+ Compilation of Water Testing hardware for pH\n! Product/Link\n! Testing Type\n! Specifications/ranges\n! OS\n! Price\n|-\n| [http://www.webstaurantstore.com/hydrion-93-s-r-insta-check-ph-test-paper-dispenser-level-0-13/37393.html?utm_source=google&utm_medium=cpc&utm_term=37393&utm_campaign=PLA&gclid=CKjR_v_pp7gCFYFhMgodeG0ANg Hydrion 93 S/R Insta-Check]\n| Test Paper\n| 0-13 pH\n| no\n| $5.25\n|-\n| [http://web.archive.org/web/20150221054412/http://www.labdepotinc.com:80/Product_Details~id~386~pid~50057.aspx HI208 Educational pH Meter]\n| probe\n| Range:-2.00 to 16.00 pH<br>Resolution:0.01 pH<br>Accuracy:±0.02 pH\n| no\n| $198.00\n|-\n| [http://www.bulkreefsupply.com/milwaukee-ph600-ph-meter-pen.html?gclid=CO_Pqc2BqLgCFc5FMgodlEgAhg Milwaukee pH600 pH Meter Pen]\n|\n| Range: 0.0-14.0 pH<br>Resolution: 0.1 pH<br>Accuracy: +/- 0.2 pH\n| no\n| $23.99\n|}\n\n{| class=\"wikitable\" border=\"2\"\n|+ Compilation of Water Testing hardware for COD\n! Product/Link\n! Testing Type\n! Specifications/ranges\n! OS\n! Price\n|-\n| [http://www.alibaba.com/product-gs/629505230/COD_Analyzer_Chemical_Oxygen_Demand_Analyzer_.html COD Analyzer (Chemical Oxygen Demand Analyzer)]\n|\n| Measuring range: (0.0~100.0)mg/L (100.0~1000)mg/L<br>The electrolysis current is divided into 10mA,20mAand 40mA.<br>Accuracy: ±2%FS\n|\n| $999 - 1,999\n|-\n| [http://www.alibaba.com/product-gs/282890875/COD_meter_5B_2A_chemical_oxygen.html COD meter 5B-2A]\n|\n| Digesting temp. 165 ± 1<br>Digesting time: 10mins<br>Measuring range: 5-5000mg/L<br>Measuring time: 4 samples could be measured in same time.<br>Anti-chlorine disturbance: Cl1000mg/L Cl4000mg/L (be selected)<br>Accuracy: COD=50mg/L when V<10%, COD=300mg/L when V<5%\n|\n| $1,000 - 3,000\n|-\n| [http://www.hannainst.com/usa/prods2.cfm?id=008001&ProdCode=HI%2083214 C.O.D. TEST VIAL METER]\n|\n| Range:0 to 15000 mg/L<br>\n| no\n| $896.00\n|-\n| [http://www.hannainst.com/usa/prods2.cfm?id=008001&ProdCode=HI%2083099 COD and Multiparameter Bench Photometer]\n| dichromate\n| Range:0 to 15000 mg/L (ppm)\n| no\n| $1,109.00\n|}\n\n{| class=\"wikitable\" border=\"2\"\n|+ Compilation of Water Testing hardware for BOD\n! Product/Link\n! Testing Type\n! Specifications/ranges\n! OS\n! Price\n|-\n| [http://www.hach.com/bodtrak-ii-respirometric-bod-apparatus/product?id=7640450995&callback=bp BODTrak II Respirometric BOD Apparatus]\n|\n| Range:0 - 700 mg/L\n|\n| $2,250.00\n|-\n| [http://www.ysi.com/accessoriesdetail.php? ProOBOD-Self-Stirring-Optical-BOD & Probe]\n| Optical\n| Range:0 to 50 mg/L<br>Accuracy:0 to 20 mg/L, ±1% of the reading or ±0.1 mg/L, whichever is greater; 20 to 50 mg/L, ± 10% of the reading<br>Resolution:0.01 mg/L\n| no\n| $2770.00\n|}\n\n{| class=\"wikitable\" border=\"2\"\n|+ Compilation of Water Testing hardware for turbidity\n! Product/Link\n! Testing Type\n! Specifications/ranges\n! OS\n! Price\n|-\n| [http://www.labdepotinc.com/Product_Details~id~842~pid~61304.aspx?gclid=CPGFyKfyp7gCFek7Mgod0jwAoA T-100 Turbity Meter]\n|\n| Range:0 to 1000 NTU<br>Accuracy:±2% of measurement from 0 to 500 NTU; ±3% of measurement from 501 to 1000 NTU<br>Repeatability:±0.01 NTU or ±1% of measurement\n| no\n| $669.60\n|-\n| [http://www.davis.com/Product/Extech_TB400_Portable_Turbidity_Meter_Kit/WO-99542-10?referred_id=3388&gclid=CMa3pdL1p7gCFe9aMgodpj4ALA Extech TB400 Portable Turbidity Meter Kit]\n|\n| Resolution:0.01, 1 NTU<br>Range:0.00 to 50.00 NTU, 50 to 1000 NTU<br>Accuracy:+/- 5% full scale\n|\n| $599.00\n|-\n| [http://www.grainger.com/Grainger/LAMOTTE-Turbidity-Meter-6CAR1?cm_sp=IO-_-IDP-_-RR_VTV70300505&cm_vc=IDPRRZ1 Turbidity Meter, EPA]\n|\n| Range 0 to 4000 NTU<br>Resolution 0.01, 0.1 and 1 NTU\n|\n| $1,118.00\n|}\n\n{| class=\"wikitable\" border=\"2\"\n|+ Compilation of Water Testing hardware for combination devices\n! Product/Link\n! Testing Type\n! Specifications/ranges\n! OS\n! Price\n|-\n| [http://www.4oakton.com/proddetail.asp?parent=2&prod=352&seq=2&Totrec=13Waterproof Multiparameter PCS Testr 35]\n| pH, conductivity, TDS, salinity and temperature\n! Range'''<br>pH: 0.0 to 14.0<br>Conductivity: 0 to 200 uS; 201 to 2000 uS; 2.01 to 20.00 mS<br>TDS: 0 to 100.0 ppm; 100 to 1000 ppm;01.00 to 10.00 ppt<br>Salinity: 0 to 999 ppm<br>Temp: 32 to 122°F (0 to 50°C) 2.01 to 10.00 ppt<br>'''Resolution'''<br>pH:0.1 pH<br>Conductivity: 10 uS, 0.1 mS<br>TDS: 0.1 ppm, 1 ppm; 0.01 ppt<br>Salinity: 0.1 below 100 ppm/1 ppm above<br>Temperature: 0.1°<br>'''Accuracy<br>pH: ±0.1 pH<br>Conductivity: ±1% full-scale<br>TDS: ±1% full-scale<br>Salinity: ±1% full-scale<br>Temperature:±0.5°C,±0.9°F\n| no\n| $169.00\n|-\n| [http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=9848&cmpid=03csegpl&ref=6111&subref=AA&CAWELAID=525409196&catargetid=1570176776&cadevice=c&cagpspn=pla DiST®5]\n| conductivity, TDS, temp.\n! Range'''<br>EC 0 to 3999 µS/cm<br>TDS 0 to 2000 ppm<br>Temperature 0.0 to 60.0°C or<br>32.0 to 140.0°F<br>'''Resolution'''<br>EC 1 µS/cm<br>TDS 1 ppm<br>Temperature 0.1°C or 0.1°F<br>'''Accuracy(@ 20°C/68°F)<br>EC ±2% Full Scale<br>TDS ±2% Full Scalem<br>Temperature ±0.5°C or ±1°F\n|\n| $53.00\n|-\n| [http://www.omega.com/ppt/pptsc.asp?ref=PHH-128&pn=PHH-128 5-in-1 Multi-Parameter Water Quality Meter]\n| electrical conductivity, total disolved solids, conductivity factor, pH, oxidation reduction potential, temperature\n! Measure Range'''<br>pH: 0.00 to 14.00<br>Temperature: -50 to 70°C (-58 to 158°F)<br>EC: 0.00 to 19.99 mS/cm<br>CF: 0.0 to 199<br>TDS: 10 to 19990 ppm<br>mV: 0 to ±1999 temp.<br>'''Resolution'''<br>pH: 0.01<br>Temperature: 0.1°C (0.2°F)<br>EC: 0.01<br>CF: 0.1<br>TDS: 10 ppm<br>mV: 1<br>'''Accuracy<br>pH: ±0.1<br>Temperature: ±1.0°C (2.0°F)<br>EC, CF, TDS: ±2% FS<br>mV: ±0.1% FS ±1 digit\n| no\n| $333.00\n|}\n\n{{Page data\n| license = CC-BY-SA-3.0\n| sdg = SDG06 Clean water and sanitation\n| organizations = MOST\n| description = Appropedia’s water testing guide compares field meters, sensors, and prices, helping users select the right equipment for reliable clean water monitoring.\n}}"}