{"product_id":"ejghfprs","title":"ECS-JG Handheld Four-Probe Resistivity Tester for Electrical Conductivity Measurement of Thin Films, EJGHFPRS","description":"\u003cp\u003eA Hand-Held Four-Probe Resistivity Tester (or portable sheet resistance meter) is a rapid, non-destructive quality control tool used to measure the electronic conductivity, bulk resistivity, and sheet resistance (Rs) of thin films, conductive coatings, and semiconductor wafers. Unlike benchtop test stands that require fixed mounting stages, handheld testers integrate a compact probe head, current source, voltmeter, and digital display into a portable unit for quick measurements across large substrates, production lines, or field samples.\u003c\/p\u003e\n\u003cp\u003eThe main applications can be: (1) \u003cstrong\u003eGas Diffusion Layers (GDLs) \u0026amp; PTLs\u003c\/strong\u003e: Fast quality screening of sheet resistance uniformity across large carbon paper, carbon cloth, or titanium felt sheets used in fuel cells and electrolyzers. (2) \u003cstrong\u003eTransparent Conductive Films (TCOs)\u003c\/strong\u003e: Testing ITO (Indium Tin Oxide), FTO, or aluminum-doped zinc oxide (AZO) coatings on glass\/PET for solar cells, displays, and smart windows. (3) \u003cstrong\u003eBattery Electrode Coatings\u003c\/strong\u003e: Measuring the electronic conductivity of dried slurry coatings (e.g., LFP, NMC, or Graphite) on current collectors to ensure proper carbon black percolation networks. (4) \u003cstrong\u003eThin Metal Evaporations\u003c\/strong\u003e: Checking the thickness and conductivity of sputtered Gold, Platinum, Copper, or Titanium seed layers (10 nm - 5 um).\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 1216.8px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 47.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 47.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 47.6px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEJGHFPRS (E-JG-HFPRS) \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 47.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 47.6px;\"\u003e\u003cem\u003ePower\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 47.6px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAC110-220V\u003cspan style=\"font-size: 0.875rem;\"\u003e±10% (DC24V adpator), 50\/60Hz, 1W\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 161.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 161.6px;\"\u003e\u003cem\u003eTesting Resistivity Range\/Resolution\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 161.6px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cul\u003e\n\u003cli\u003eResistance: 0.01Ω-50 kΩ; Resolution: 0.001 Ω-10 Ω\u003c\/li\u003e\n\u003cli\u003eResistivity: 0.01Ω*cm-20 kΩ*cm; Resolution: 0.001 Ω*m-10 Ω*cm \u003c\/li\u003e\n\u003cli\u003eSquare Resistance: 0.05 Ω\/□ -100 kΩ\/□; Resolution: 0.001 Ω\/□ -10 Ω\/□\u003c\/li\u003e\n\u003cli\u003eFour testing ranges (Ω*cm): (1) ≤\u003cspan style=\"font-size: 0.875rem;\"\u003e 2 Ω, (2) \u003c\/span\u003e≤\u003cspan style=\"font-size: 0.875rem;\"\u003e 20 Ω, (3) \u003c\/span\u003e≤\u003cspan style=\"font-size: 0.875rem;\"\u003e 200 Ω, (4) \u003c\/span\u003e≤\u003cspan style=\"font-size: 0.875rem;\"\u003e 2000 Ω\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eDigital Voltage Reading: 20 mV, ±0.2%FSB, resolution of 1 uV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eDigital Current Reading: 1 uA-10 mA, increment of 1 uA, ±0.2%FSB\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 86.8px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 86.8px;\"\u003e\u003cem\u003eAccommodating Sample Sizes \u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 86.8px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cul\u003e\n\u003cli\u003eRound testing platform (SZT-A): Φ15-130 mm\u003c\/li\u003e\n\u003cli\u003eSquare testing platform (SZT-C): 180mm * 180 mm\u003c\/li\u003e\n\u003cli\u003eLength (height): H≤100 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 778px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 778px;\"\u003e\u003cem\u003e\u003cbr\u003eApplication Scenarios \u0026amp; Probe Types\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 778px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cul\u003e\n\u003cli\u003eSquare Resistance Test of nano-coating (\u003cstrong\u003eST2258B-F01 Probe\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/EJGHFPRS_02_100x100.jpg?v=1785472340\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSquare Resistance Test of ITO film (\u003cstrong\u003eST2258B-F01 Probe\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e           \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/EJGHFPRS_03_100x100.jpg?v=1785472340\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSquare Resistance and Resistivity Test of Si wafer (\u003cstrong\u003eST2253-F01\u003c\/strong\u003e \u003cstrong\u003eProbe, Tungsten\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/EJGHFPRS_06_100x100.jpg?v=1785473248\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResistivity Test of Carbon Coating (\u003cstrong\u003eST2558B-F02 Probe\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e           \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/EJGHFPRS_04_100x100.jpg?v=1785472340\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eResistivity Test of Battery Electrode (\u003cstrong\u003eST2558B-F02 Probe\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/EJGHFPRS_05_100x100.jpg?v=1785472340\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 47.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 47.6px;\"\u003e\u003cem\u003eDimension\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 47.6px;\"\u003e\n\u003cul\u003e\n\u003cli\u003eL 210 * W 105 * H35 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 47.6px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 47.6px;\"\u003e\u003cem\u003eWeight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 47.6px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e~0.5 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/full\/10.1002\/adfm.202205949\"\u003eL. Frey, et al., Oriented Thiophene-Extended Benzotrithiophene Covalent Organic Framework Thin Films: Directional Electrical Conductivity, Adv. Funct., Mater., 2022, 32, 2205949. \u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/pubs.acs.org\/cmatex\/article-abstract\/28\/10\/3462\/779694\/Structure-and-Dopant-Engineering-in-PEDOT-Thin?redirectedFrom=fulltext\"\u003eMagatte N. Gueye, et al., Structure and Dopant Engineering in PEDOT Thin Films: Practical Tools for a Dramatic Conductivity Enhancement, Chem. Mater. (2016) 28 (10): 3462–3468.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"SZJG","offers":[{"title":"ST2258B-F01 Probe for Nano-Coating and ITO","offer_id":48089252954342,"sku":"EJGHFPRS2258B","price":1499.0,"currency_code":"USD","in_stock":true},{"title":"ST2253-F01 Probe for Si Wafer","offer_id":48089252987110,"sku":"EJGHFPRS2253","price":1499.0,"currency_code":"USD","in_stock":true},{"title":"ST2558B-F02 Probe for Carbon Coating and Battey Electrode","offer_id":48089253019878,"sku":"EJGHFPRS2558B","price":1599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/EJGHFPRS_main.jpg?v=1785469703","url":"https:\/\/echemsupplies.com\/products\/ejghfprs","provider":"EChem Supplies","version":"1.0","type":"link"}