{"product_id":"ejgcshfprt","title":"ECS-JG Handheld Four-Probe Resistivity Tester for Conductive Slurry Measurement, EJGCSHFPRT","description":"\u003cp\u003eA Handheld Four-Probe Resistivity Tester for Conductive Slurries (such as battery cathode\/anode slurries, conductive inks, carbon paste, or conductive polymer suspensions) is an instrument used to measure liquid\/wet-state electronic conductivity before coating and drying. While standard four-point probes measure solid thin films, slurry-specific handheld four-probe systems feature specialized immersible cup probes or dip-probe heads designed to prevent short-circuiting through liquid media while isolating contact resistance.\u003c\/p\u003e\n\u003cp\u003eIn a liquid conductive slurry, traditional 2-point conductivity probes suffer from severe electrochemical polarization, bubble formation, and slurry adhesion at the electrode interface. A liquid four-probe system overcomes this using a controlled geometry cell or aligned probe pins: (1) \u003cstrong\u003eOuter Probes (Current Drive)\u003c\/strong\u003e: A controlled AC or reversed DC current (I) passes through the slurry solution between the outer contacts. (2) \u003cstrong\u003eInner Probes (Voltage Sense)\u003c\/strong\u003e: The high-impedance voltage sense probes measure the potential drop across a known liquid cross-sectional volume.\u003c\/p\u003e\n\u003cp\u003eThe main applications examples are: (1) \u003cstrong\u003eLithium-Ion Battery Slurries (NMC\/LFP\/Graphite)\u003c\/strong\u003e: Measures the formation of the carbon black\/CNT conductive network inside the solvent (NMP or Water). Detects under-mixing (broken conductive pathways) or over-mixing (shear damage to CNTs\/polymers). (2) \u003cstrong\u003eConductive Inks \u0026amp; Screen-Printing Pastes\u003c\/strong\u003e: Checks batch-to-batch consistency for printed electronics, flexible sensors, and solar cell metallization pastes. (3) \u003cstrong\u003eConductive Polymers \u0026amp; Hydrogels\u003c\/strong\u003e: Evaluates PEDOT:PSS, MXene, or graphene dispersions prior to processing.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 933.275px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 51.675px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 51.675px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 51.675px;\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEJGCSHFPRT (EJG-CS-HFPRT) \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\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eDC8.4V rechargeable battery, ~10W\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: 204.4px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 204.4px;\"\u003e\u003cem\u003eTesting Resistivity Range\/Resolution\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 204.4px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cul\u003e\n\u003cli\u003eMeasurement Mechanism: Four-probe for measuring resistivity and two probe for measuring resistance.\u003c\/li\u003e\n\u003cli\u003eResistivity: 0.1 Ωm-100 kΩ*m (S needle distance with unit of m)\u003c\/li\u003e\n\u003cli\u003eResolution: ~3%\u003c\/li\u003e\n\u003cli\u003eShort-Circuit Current: Max. AC\u003cspan style=\"font-size: 0.875rem;\"\u003e±20 mA\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eOpen Circuit Voltage: Max. AC±20 V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eTesting Voltage Wave Shape: Square Wave (1 KHz)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eWorking Humidity: -20°C ~ 60 °C\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: 305px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 305px;\"\u003e\u003cem\u003e\u003cbr\u003eTesting Samples \u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 305px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cul\u003e\n\u003cli\u003eConductive Gel\u003c\/li\u003e\n\u003cli\u003eBattery Electrolyte\u003c\/li\u003e\n\u003cli\u003ePowder Dispersion\u003c\/li\u003e\n\u003cli\u003eCarbon past\u003c\/li\u003e\n\u003cli\u003eGraphene Powder Dispersion\u003c\/li\u003e\n\u003cli\u003eFlat Pellet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e       \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/EJGCSHFPRT_02_160x160.jpg?v=1785526944\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 188.2px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 188.2px;\"\u003e\u003cem\u003eLaptop \u0026amp; Software\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 188.2px;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003cul\u003e\n\u003cli\u003eThe ST2242 system has the operation software that can be installed on laptop for testing data management\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/EJGCSHFPRT_04_100x100.jpg?v=1785528144\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 88.8px;\"\u003e\n\u003ctd style=\"width: 33.0935%; height: 88.8px;\"\u003e\u003cem\u003eDimension\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.7266%; height: 88.8px;\"\u003e\n\u003cul\u003e\n\u003cli\u003eL 250 * W 130 * H50 mm (only monitor)\u003c\/li\u003e\n\u003cli\u003eThere is a packing box that can accommodate all components \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~15 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":"Default Title","offer_id":48090702184678,"sku":"EJGCSHFPRT","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/EJGCSHFPRT_main.jpg?v=1785547859","url":"https:\/\/echemsupplies.com\/products\/ejgcshfprt","provider":"EChem Supplies","version":"1.0","type":"link"}