{"product_id":"digital-ph-conductivity-and-temperature-meter-181","title":"Digital pH Conductivity and Temperature Meter 181","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cstyle\u003e\n    \/* SciSpectrum Color Scheme \u0026 Basics *\/\n    :root {\n        --primary-blue: #004a99;\n        --hover-blue: #0056b3;\n        --bg-gray: #f8f9fa;\n        --text-color: #333;\n        --border-color: #ddd;\n        --white: #ffffff;\n    }\n\n    body {\n        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;\n        line-height: 1.6;\n        color: var(--text-color);\n        background-color: var(--bg-gray);\n        margin: 0;\n        padding: 20px;\n    }\n\n    .scispectrum-tabs-container {\n        max-width: 1200px;\n        margin: 0 auto;\n        background: var(--white);\n        border-radius: 8px;\n        box-shadow: 0 4px 15px rgba(0,0,0,0.05);\n        overflow: hidden;\n    }\n\n    \/* Tab input handling *\/\n    .tab-input {\n        display: none;\n    }\n\n    \/* Tab navigation style *\/\n    .tab-nav {\n        display: flex;\n        flex-wrap: wrap;\n        border-bottom: 2px solid var(--border-color);\n        background-color: var(--white);\n    }\n\n    .tab-label {\n        padding: 15px 25px;\n        cursor: pointer;\n        font-weight: 600;\n        color: var(--primary-blue);\n        transition: all 0.3s ease;\n        border-bottom: 3px solid transparent;\n        text-align: center;\n        flex-grow: 1;\n    }\n\n    .tab-label:hover {\n        background-color: rgba(0, 74, 153, 0.05);\n        color: var(--hover-blue);\n    }\n\n    \/* Active tab styling *\/\n    #tab1:checked ~ .tab-nav label[for=\"tab1\"],\n    #tab2:checked ~ .tab-nav label[for=\"tab2\"],\n    #tab3:checked ~ .tab-nav label[for=\"tab3\"],\n    #tab4:checked ~ .tab-nav label[for=\"tab4\"] {\n        border-bottom-color: var(--primary-blue);\n        color: var(--primary-blue);\n        background-color: var(--white);\n    }\n\n    \/* Tab content panels *\/\n    .tab-panels {\n        padding: 30px;\n    }\n\n    .tab-content {\n        display: none;\n        animation: fadeIn 0.5s ease;\n    }\n\n    \/* Active panel handling *\/\n    #tab1:checked ~ .tab-panels #content1,\n    #tab2:checked ~ .tab-panels #content2,\n    #tab3:checked ~ .tab-panels #content3,\n    #tab4:checked ~ .tab-panels #content4 {\n        display: block;\n    }\n\n    @keyframes fadeIn {\n        from { opacity: 0; }\n        to { opacity: 1; }\n    }\n\n    \/* Utility Classes *\/\n    h3 { color: var(--primary-blue); margin-top: 0; }\n    \n    \/* Specifications Table Style *\/\n    .spec-table {\n        width: 100%;\n        border-collapse: collapse;\n        margin-top: 20px;\n        font-size: 0.95rem;\n    }\n\n    .spec-table th, .spec-table td {\n        text-align: left;\n        padding: 12px 15px;\n        border-bottom: 1px solid var(--border-color);\n    }\n\n    .spec-table th {\n        background-color: var(--primary-blue);\n        color: var(--white);\n        text-transform: uppercase;\n        letter-spacing: 0.05em;\n    }\n\n    .spec-table tr:nth-child(even) {\n        background-color: rgba(0, 74, 153, 0.02);\n    }\n\n    .spec-table tr:hover {\n        background-color: rgba(0, 74, 153, 0.05);\n    }\n\n    \/* Features \u0026 Benefits List Style *\/\n    .features-list {\n        list-style: none;\n        padding: 0;\n        display: grid;\n        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));\n        gap: 20px;\n    }\n\n    .features-list li {\n        background: var(--white);\n        padding: 20px;\n        border-radius: 6px;\n        border: 1px solid var(--border-color);\n        position: relative;\n        padding-left: 50px;\n        transition: transform 0.2s ease;\n    }\n    \n    .features-list li:hover {\n        transform: translateY(-3px);\n        box-shadow: 0 2px 10px rgba(0,0,0,0.05);\n    }\n\n    .features-list li::before {\n        content: '✓';\n        position: absolute;\n        left: 15px;\n        top: 20px;\n        color: var(--primary-blue);\n        font-weight: bold;\n        font-size: 1.2rem;\n    }\n\n    .feature-title {\n        font-weight: 700;\n        color: var(--primary-blue);\n        display: block;\n        margin-bottom: 5px;\n    }\n\n    \/* FAQ Style *\/\n    .faq-item {\n        margin-bottom: 25px;\n        border-bottom: 1px solid var(--border-color);\n        padding-bottom: 15px;\n    }\n\n    .faq-question {\n        font-weight: 600;\n        color: var(--primary-blue);\n        margin-bottom: 10px;\n        font-size: 1.1rem;\n    }\n\n    \/* Mobile Responsiveness *\/\n  @media (max-width: 768px) {\n    html, body {\n        padding: 0 !important;\n        margin: 0 !important;\n        width: 100%;\n        overflow-x: hidden;\n    }\n\n    .scispectrum-tabs-container {\n        width: 100% !important;\n        max-width: 100% !important;\n        margin: 0 !important;\n        border-radius: 0 !important;\n        box-shadow: none;\n    }\n\n    .tab-panels {\n        padding: 15px 8px !important;\n    }\n\n    .tab-label {\n        flex: 1 0 48%;\n        font-size: 0.85rem;\n        padding: 12px 2px;\n        box-sizing: border-box;\n    }\n\n    .faq-item {\n        margin: 0 0 15px 0 !important;\n        padding: 12px !important;\n        width: 100%;\n        box-sizing: border-box;\n    }\n}\n\u003c\/style\u003e\n\u003cdiv class=\"scispectrum-tabs-container\"\u003e\n\u003cinput id=\"tab1\" class=\"tab-input\" checked name=\"scispectrum-tabs\" type=\"radio\"\u003e \u003cinput id=\"tab2\" class=\"tab-input\" name=\"scispectrum-tabs\" type=\"radio\"\u003e \u003cinput id=\"tab3\" class=\"tab-input\" name=\"scispectrum-tabs\" type=\"radio\"\u003e \u003cinput id=\"tab4\" class=\"tab-input\" name=\"scispectrum-tabs\" type=\"radio\"\u003e\u003cnav class=\"tab-nav\"\u003e\u003clabel class=\"tab-label\" for=\"tab1\"\u003eOverview\u003c\/label\u003e \u003clabel class=\"tab-label\" for=\"tab2\"\u003eSpecifications\u003c\/label\u003e \u003clabel class=\"tab-label\" for=\"tab3\"\u003eFeatures \u0026amp; Benefits\u003c\/label\u003e \u003clabel class=\"tab-label\" for=\"tab4\"\u003eFAQs\u003c\/label\u003e\u003c\/nav\u003e\n\u003cdiv class=\"tab-panels\"\u003e\n\u003cdiv id=\"content1\" class=\"tab-content\"\u003e\n\u003ch3\u003eModel 181 Integrated Multi-Parameter Laboratory Analyzer\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDigital pH, Conductivity \u0026amp; Temperature Meter Model 181\u003c\/strong\u003e is an elegant, rugged, and economical instrument designed for fast and accurate measurement of three critical parameters in a single, robust device. Engineered with sophisticated solid-state IC circuitry, this versatile laboratory analyzer delivers precise readings for \u003cstrong\u003epH\u003c\/strong\u003e, \u003cstrong\u003econductivity\u003c\/strong\u003e, and \u003cstrong\u003etemperature\u003c\/strong\u003e across diverse applications, including natural water quality assessment, wastewater analysis, agricultural soil testing, and industrial process control. By combining triple parameter testing functionality, it serves as an ideal three-in-one solution that streamlines workflows, optimizes laboratory bench space, and reduces equipment costs for environmental testing, pollution control, public health engineering, and industrial quality departments.\u003c\/p\u003e\n\u003cp\u003eThe Model 181 features a crystal clear, high-visibility 3½ digit seven-segment bright red LED display, ensuring excellent reading visibility even in challenging laboratory environments. Its advanced input stage boasts an ultra-high input impedance of \u0026gt;10¹² ohms, preventing sample disturbance during sensitive pH measurements. The instrument is adapted for diverse industrial applications, offering high-precision pH analysis (full 0-14 pH range with 0.01 resolution), reliable conductivity testing (up to 20 ppt), and precise temperature monitoring (0-100°C range with 0.1°C resolution) using a premium RTD (PT-100) sensor. With practical maintenance and regular calibration using standard buffer solutions, the Model 181 provides dependable, long-term measurement performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content2\" class=\"tab-content\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"text-align: center; margin-bottom: 20px;\"\u003e\u003cimg style=\"max-width: 100%; height: auto; aspect-ratio: 1\/1; border: 1px solid var(--border-color); border-radius: 8px;\" src=\"image_16.png\" alt=\"Digital pH Conductivity and Temperature Meter Model 181 Technical Specifications Table\"\u003e\u003c\/div\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter \/ Feature\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital pH, Conductivity \u0026amp; Temperature Meter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e181\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTriple Parameter Measurement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003epH, Conductivity, Temperature (PT-100 RTD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Measurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 14 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Resolution \/ Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01 pH \/ ±0.01 pH ± 1 Digit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Input Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 10¹² ohms (preventing sample loading)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConductivity Measurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 20 ppt (2 ranges)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConductivity Resolution \/ Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 ppt \/ ± 0.5% of Range ± 1 digit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCell Constant Adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.2 to 1.8 adjustable directly on digital display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Measurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 100°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Resolution \/ Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1°C \/ ±0.2% ± 1 digit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Sensor Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePrecision RTD (PT-100) sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Compensation (Manual)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003epH: 0-100°C; Conductivity: 0-50°C (from Temp Table at 25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3½ digitseven-segment high-visibility bright red LED display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectronic Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSolid-state IC circuitry with low drift components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntegrated oscillator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in 1 kHz oscillator for conductivity measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDurable Housing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRobust design for long-term laboratory use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard Power Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e220V AC ±10%, 50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content3\" class=\"tab-content\"\u003e\n\u003ch3\u003eCore Features \u0026amp; User Benefits\u003c\/h3\u003e\n\u003cp\u003eThe Model 181 Multi-Parameter Meter delivers comprehensive water quality analysis through integrated functionality, sophisticated circuitry, and durable construction.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center; margin-top: 20px; margin-bottom: 20px;\"\u003e\u003cimg style=\"max-width: 100%; height: auto; aspect-ratio: 1\/1; border: 1px solid var(--border-color); border-radius: 8px;\" src=\"image_17.png\" alt=\"Digital pH Conductivity and Temperature Meter Model 181 Core Benefits Infographic\"\u003e\u003c\/div\u003e\n\u003cul class=\"features-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eTriple Parameter Measurement in One Device\u003c\/span\u003e Consolidates pH, conductivity, and temperature testing into a single economical instrument. This three-in-one functionality replaces multiple single-parameter devices, streamlining workflows while significantly reducing laboratory equipment footprint and acquisition costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eHigh-Precision pH Analysis Stage\u003c\/span\u003e Delivers professional-grade pH testing capability with a full 0-14 range, precise 0.01 resolution, and ±0.01 pH accuracy. The high input impedance of \u0026gt;10¹² ohms ensures accurate pH measurement without sample loading effects, preventing cross-contamination risks or inconsistent readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eReliable Conductivity Testing with Dual Ranges\u003c\/span\u003e Features dependable conductivity testing up to 20 ppt via two selectable ranges with ±0.5% accuracy. The integrated 1 kHz oscillator and adjustable cell constant (0.2-1.8) directly readable on the digital display provide maximum versatility for dissolved solid analysis across diverse applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eAdvanced Electronic Circuitry for Consistency\u003c\/span\u003e Incorporates modern solid-state IC circuitry carefully engineered for measurement stability and long-term reliability. Precision low drift components minimize signal drift, ensuring consistent performance for routine quality control in manufacturing facilities or research centers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eHigh-Visibility Crystal Clear Display\u003c\/span\u003e Equipped with a crisp 3½ digitseven-segment bright red LED display. This high-contrast interface provides excellent reading visibility from across the laboratory bench, improving operational advantages and reducing error rates during routine measurements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"feature-title\"\u003eIntegrated Temperature Monitoring and Compensation\u003c\/span\u003e Utilizes a precision RTD (PT-100) sensor for wide 0-100°C temperature measurement with 0.1°C resolution. This accurate reading serves as the critical basis for essential temperature compensation calculations (pH 0-100°C manual; conductivity 0-50°C), ensuring reliable parameter corrections in changing environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"content4\" class=\"tab-content\"\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhat critical water quality parameters can the Digital pH, Conductivity \u0026amp; Temperature Meter Model 181 measure?\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDigital pH, Conductivity \u0026amp; Temperature Meter Model 181\u003c\/strong\u003e is an elegant, rugged, and economical instrument designed for fast and accurate measurement of three critical parameters in a single robust device. It delivers precise, integrated readings for \u003cstrong\u003epH\u003c\/strong\u003e, \u003cstrong\u003econductivity\u003c\/strong\u003e, and \u003cstrong\u003etemperature\u003c\/strong\u003e, making it ideal for comprehensive water quality assessment, wastewater analysis, and industrial process control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eDoes the Model 181 multi-parameter meter connect multiple single-parameter instruments?\u003c\/p\u003e\n\u003cp\u003eYes, the \u003cstrong\u003eModel 181\u003c\/strong\u003e consolidates three essential laboratory measurements into a single \u003cstrong\u003eeconomical instrument\u003c\/strong\u003e. This powerful \u003cstrong\u003ethree-in-one functionality\u003c\/strong\u003e streamlines workflows, eliminates the need for separate meters, and optimizes laboratory footprint, allowing users to measure related parameters without changing instruments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhat is the measurement range and precision of the pH analysis stage in this meter?\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eModel 181\u003c\/strong\u003e provides comprehensive, \u003cstrong\u003ehigh-precision pH analysis\u003c\/strong\u003e. It covers the full **0-14 pH** range with **0.01 pH resolution** and **±0.01 pH accuracy**. An ultra-high input impedance of **\u0026gt;10¹² ohms** ensures accurate pH measurement without disturbing sensitive samples during critical scientific testing protocols.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eCan I adjust the conductivity cell constant on the digital display, and what is the maximum range?\u003c\/p\u003e\n\u003cp\u003eYes, the \u003cstrong\u003eModel 181 conductivity measurement\u003c\/strong\u003e capabilities allow direct digital adjustment of the cell constant (0.2-1.8) on the main display interface. It features **dual-range capability** to measure dissolved solids up to **20 ppt** with **±0.5% precision** for consistent performance in various water monitoring or industrial wastewater analysis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-question\"\u003eWhat type of temperature sensor technology does the Lutron GCH-2018 multi-parameter meter include?\u003c\/p\u003e\n\u003cp\u003eThe **Digital pH, Conductivity \u0026amp; Temperature Meter Model 181** employs a premium **RTD (PT-100)** sensor technology. This sensor provides wide **0-100°C** temperature measurement with **0.1°C resolution** and serve as the accurate reference basis for manual **temperature compensation** for both pH and conductivity analysis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Electronics India","offers":[{"title":"Default Title","offer_id":51460964286710,"sku":"EI181","price":31742.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/6535\/1158\/files\/Digital_pH_Conductivity_and_Temperature_Meter_181__48024.1754471318.386.513_2d71c33c-6c60-4fba-9936-c2c1e9cdc334.jpg?v=1786598882","url":"https:\/\/scispectrum.in\/products\/digital-ph-conductivity-and-temperature-meter-181","provider":"SciSpectrum Lab Essentials","version":"1.0","type":"link"}