{"product_id":"van-essen-instruments-ctd-diver-data-logger","title":"Van Essen Instruments CTD-Diver Data Logger","description":"\u003ch2\u003eThe CTD-Diver is ideal for ground and surface water applications.\u003c\/h2\u003e\n\u003cp\u003eWhere there is a need to monitor groundwater levels and saltwater instrusion, injected wastewater, or contamination from chemical discharges and landfill sites, the CTD-Diver® with its 22 mm diameter rugged, corrosion-proof ceramic (zirconium oxide) housing, is the instrument of choice. It autonomously measures conductivity, pressure, and temperature and records them in its internal memory. The CTD-Diver is ideal for ground and surface water level applications.\u003c\/p\u003e\n\u003cp\u003eThe CTD-Diver can store a maximum of 144,000 measurements (date\/time, pressure, temperature, and conductivity) in its working memory and 144,000 measurements in its backup memory.\u003c\/p\u003e\n\u003cp\u003eThe CTD-Diver has the following sample methods: fixed length intervals, event-dependent, averaging, and pumping tests. The measurements are stored in fixed length or continuous memmory (fixed length only).\u003c\/p\u003e\n\u003cp\u003eThe CTD-Diver is available in the following pressure ranges: 10 m, 50 m, 100 m, and 200 m.\u003c\/p\u003e\n\u003c!-- more --\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cspan class=\"headline\"\u003eFeatures \u0026amp; Benefits\u003c\/span\u003e \u003cspan class=\"sub-headline\"\u003eClick here to learn more about the product.\u003c\/span\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"indent-content\"\u003e\n    \u003ch3\u003eFeatures\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003eInnovative ceramic housing technology\u003c\/li\u003e\n      \u003cli\u003eThree sensors in one sealed housing\u003c\/li\u003e\n      \u003cli\u003eConductivity range up to 120 mS\/cm\u003c\/li\u003e\n      \u003cli\u003eCompact size: Ø 22 mm – length 135 mm\u003c\/li\u003e\n      \u003cli\u003eVarious measurement methods\u003c\/li\u003e\n      \u003cli\u003eMemory: 144,000 measurements of time stamp, pressure, temperature and conductivity with backup\u003c\/li\u003e\n      \u003cli\u003e200-meter pressure range version available\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003ch3\u003eBenefits\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003eCorrosion Proof\u003c\/li\u003e\n      \u003cli\u003eMonitor conductivity, water levels, and temperature\u003c\/li\u003e\n      \u003cli\u003eSuitable for use at most sites\u003c\/li\u003e\n      \u003cli\u003eEasy installation in almost every well\u003c\/li\u003e\n      \u003cli\u003eEvent based, averaging and pumping tests sample methods to conserve memory\u003c\/li\u003e\n      \u003cli\u003eCost effective frequent, long-term measuring\u003c\/li\u003e\n      \u003cli\u003eReliable and accurate data\u003c\/li\u003e\n      \u003cli\u003eSuitable for wells with deep filters\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cspan class=\"headline\"\u003eApplications\u003c\/span\u003e \u003cspan class=\"sub-headline\"\u003eClick here to view product applications.\u003c\/span\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"indent-content\"\u003e\n    \u003cul\u003e\n      \u003cli\u003ePollution monitoring: Landfill leachate monitoring\u003c\/li\u003e\n      \u003cli\u003eCoastal zone aquifer management: Salt water intrusion\u003c\/li\u003e\n      \u003cli\u003eEstuary monitoring:\n        \u003cul\u003e\n          \u003cli\u003eWater quality\u003c\/li\u003e\n          \u003cli\u003eTidal fluctuations\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/li\u003e\n      \u003cli\u003eMining:\n        \u003cul\u003e\n          \u003cli\u003eTailings: Pollution\u003c\/li\u003e\n          \u003cli\u003eEnvironmental: Plume\/Leakage\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/li\u003e\n      \u003cli\u003eRemediation:\n        \u003cul\u003e\n          \u003cli\u003eWater quality: Correlate conductivity with permanganate\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003e\u003cspan class=\"headline\"\u003eKey Specifications\u003c\/span\u003e \u003cspan class=\"sub-headline\"\u003eClick here to view product specifications.\u003c\/span\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"indent-content\"\u003e\n    \u003ch3\u003eGeneral\u003c\/h3\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eLength\u003c\/td\u003e\n        \u003ctd\u003e135 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eDiameter\u003c\/td\u003e\n        \u003ctd\u003e22 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMemory\u003c\/td\u003e\n        \u003ctd\u003e144,000 measurements\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHousing\u003c\/td\u003e\n        \u003ctd\u003eceramic (ZrO2)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eWeight\u003c\/td\u003e\n        \u003ctd\u003e80 grams\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eBattery life\u003c\/td\u003e\n        \u003ctd\u003e10 years (dependent on usage)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSample interval\u003c\/td\u003e\n        \u003ctd\u003e1 second to 99 hours\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSample  methods\u003c\/td\u003e\n        \u003ctd\u003efixed, event-dependent, and pumping test\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n    \u003ch3\u003ePressure\u003c\/h3\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePart No\u003c\/th\u003e\n        \u003cth\u003eDI281\u003c\/th\u003e\n        \u003cth\u003eDI282\u003c\/th\u003e\n        \u003cth\u003eDI283\u003c\/th\u003e\n        \u003cth\u003eDI284\u003c\/th\u003e\n        \u003cth\u003eUnit\u003c\/th\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eRange\u003c\/td\u003e\n        \u003ctd\u003e10\u003c\/td\u003e\n        \u003ctd\u003e50\u003c\/td\u003e\n        \u003ctd\u003e100\u003c\/td\u003e\n        \u003ctd\u003e200\u003c\/td\u003e\n        \u003ctd\u003emeter\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAccuracy*\u003c\/td\u003e\n        \u003ctd\u003e±0.5\u003c\/td\u003e\n        \u003ctd\u003e±2.5\u003c\/td\u003e\n        \u003ctd\u003e±5.0\u003c\/td\u003e\n        \u003ctd\u003e±10.0\u003c\/td\u003e\n        \u003ctd\u003ecmH2O\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eResolution\u003c\/td\u003e\n        \u003ctd\u003e0.2\u003c\/td\u003e\n        \u003ctd\u003e1.0\u003c\/td\u003e\n        \u003ctd\u003e2.0\u003c\/td\u003e\n        \u003ctd\u003e4.0\u003c\/td\u003e\n        \u003ctd\u003ecmH2O\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n    \u003ch3\u003eTemperature\u003c\/h3\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\u003c\/th\u003e\n        \u003cth\u003eValue\u003c\/th\u003e\n        \u003cth\u003eUnit\u003c\/th\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eRange\u003c\/td\u003e\n        \u003ctd\u003e-20 .. +80\u003c\/td\u003e\n        \u003ctd\u003e°C\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAccuracy*\u003c\/td\u003e\n        \u003ctd\u003e±0.1\u003c\/td\u003e\n        \u003ctd\u003e°C\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eResolution\u003c\/td\u003e\n        \u003ctd\u003e0.01\u003c\/td\u003e\n        \u003ctd\u003e°C\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n    \u003ch3\u003e\u003c\/h3\u003e\n    \u003ctable\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\u003c\/th\u003e\n        \u003cth\u003eValue\u003c\/th\u003e\n        \u003cth\u003eUnit\u003c\/th\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eRange\u003c\/td\u003e\n        \u003ctd\u003e30 or 120 (user adjustable)\u003c\/td\u003e\n        \u003ctd\u003emS\/cm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAccuracy*\u003c\/td\u003e\n        \u003ctd\u003e±1% of reading\u003c\/td\u003e\n        \u003ctd\u003emS\/cm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eResolution\u003c\/td\u003e\n        \u003ctd\u003e0.1% of reading\u003c\/td\u003e\n        \u003ctd\u003emS\/cm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n    \u003cp\u003e*typical, see product manual for full technical specifications.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","brand":"Van Essen Instruments","offers":[{"title":"10 m","offer_id":64192407241073,"sku":"DI281","price":2433.18,"currency_code":"USD","in_stock":true},{"title":"50 m","offer_id":64192407273841,"sku":"DI282","price":2433.18,"currency_code":"USD","in_stock":true},{"title":"100 m","offer_id":64192407306609,"sku":"DI283","price":2433.18,"currency_code":"USD","in_stock":true},{"title":"200 m","offer_id":64192407339377,"sku":"DI284","price":2433.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0515\/5992\/3873\/files\/VEI-CTD_Diver_2021.jpg?v=1784082345","url":"https:\/\/www.davisinstruments.com\/products\/van-essen-instruments-ctd-diver-data-logger","provider":"Davis Instruments","version":"1.0","type":"link"}