{"id":1788,"date":"2025-11-13T11:09:44","date_gmt":"2025-11-13T03:09:44","guid":{"rendered":"https:\/\/sj-gauge.com\/?post_type=product&#038;p=1788"},"modified":"2026-04-02T08:51:54","modified_gmt":"2026-04-02T00:51:54","slug":"pre4-h","status":"publish","type":"product","link":"https:\/\/www.sj-gauge.com\/vi\/san-pham\/pre4-h\/","title":{"rendered":"Th\u01b0\u1edbc \u0111o ti\u1ebfp x\u00fac \u0111i\u1ec7n, c\u01a1 ch\u1ebf \u0111\u00f3ng m\u1edf t\u1eeb t\u00ednh"},"content":{"rendered":"<p>Thi\u1ebft b\u1ecb \u0111o ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n t\u1eeb t\u00ednh ki\u1ec3u \u0111\u00f3ng ng\u1eaft t\u1ee9c th\u00ec n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh cho t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p v\u00e0 \u0111i\u1ec1u khi\u1ec3n qu\u00e1 tr\u00ecnh. V\u1edbi v\u00e0nh vi\u1ec1n b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 cao c\u1ea5p v\u00e0 c\u1eeda s\u1ed5 k\u00ednh gia c\u1ed1, s\u1ea3n ph\u1ea9m k\u1ebft h\u1ee3p gi\u1eefa thi\u1ebft k\u1ebf th\u1ea9m m\u1ef9 v\u00e0 \u0111\u1ed9 b\u1ec1n v\u01b0\u1ee3t tr\u1ed9i. Thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng ng\u1eaft ho\u1eb7c \u0111\u00f3ng m\u1ea1ch \u0111i\u1ec7n khi \u0111\u1ea1t \u0111\u1ebfn c\u00e1c ng\u01b0\u1ee1ng \u00e1p su\u1ea5t \u0111\u00e3 c\u00e0i \u0111\u1eb7t s\u1eb5n, gi\u00fap \u0111\u1ea3m b\u1ea3o t\u00edn hi\u1ec7u b\u00e1o \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady ho\u1eb7c ch\u1ee9c n\u0103ng kh\u00f3a li\u00ean \u0111\u1ed9ng h\u1ec7 th\u1ed1ng.<br \/>\nV\u1edbi c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi d\u00f2ng WIKA-PGS23, \u0111\u1ed3ng h\u1ed3 \u0111o n\u00e0y cung c\u1ea5p nhi\u1ec1u lo\u1ea1i ti\u1ebfp \u0111i\u1ec3m kh\u00e1c nhau \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1eadn h\u00e0nh \u0111a d\u1ea1ng. S\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ng\u00e0nh h\u00f3a ch\u1ea5t, d\u1ea7u kh\u00ed, luy\u1ec7n kim v\u00e0 c\u01a1 kh\u00ed. C\u01a1 ch\u1ebf \u0111\u00f3ng ng\u1eaft t\u1eeb t\u00ednh \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh chuy\u1ec3n m\u1ea1ch \u1ed5n \u0111\u1ecbnh v\u00e0 gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng ph\u00f3ng \u0111i\u1ec7n, mang l\u1ea1i hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 trong m\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 rung cao.<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li>Vi\u1ec1n th\u00e9p kh\u00f4ng g\u1ec9 v\u1edbi c\u1eeda s\u1ed5 k\u00ednh, \u0111\u1eb9p m\u1eaft nh\u01b0ng v\u1eabn b\u1ec1n b\u1ec9.<\/li>\n<li>Nhi\u1ec1u lo\u1ea1i h\u00ecnh li\u00ean h\u1ec7 \u0111\u1ec3 l\u1ef1a ch\u1ecdn<\/li>\n<li>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t, d\u1ea7u kh\u00ed, luy\u1ec7n kim, c\u01a1 kh\u00ed v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c.<\/li>\n<li>C\u00f9ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u1edbi WIKA-PGS23<\/li>\n<li>C\u00f4ng t\u1eafc \u00e1p su\u1ea5t \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t, C\u00f4ng t\u1eafc c\u1ea3nh b\u00e1o\/b\u00e1o \u0111\u1ed9ng ti\u00eau chu\u1ea9n Ch\u00e2u \u00c2u<\/li>\n<\/ul>","protected":false},"featured_media":1790,"template":"","meta":{"_acf_changed":false},"product_brand":[40],"product_cat":[41,22],"product_tag":[],"class_list":{"0":"post-1788","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-sj-gauge","7":"product_cat-pressure-instruments","8":"product_cat-pressure-switches","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v26.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Electric Contact Pressure Gauge | Alarm &amp; Switch Function | SJ Gauge<\/title>\n<meta name=\"description\" content=\"Electric contact pressure gauge with alarm and switch function, designed for industrial automation and pressure control. Reliable and precise switching performance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sj-gauge.com\/vi\/san-pham\/pre4-h\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Electric Contact Gauge, magnetic snap-action\" \/>\n<meta property=\"og:description\" content=\"Electric contact pressure gauge with alarm and switch function, designed for industrial automation and pressure control. Reliable and precise switching performance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sj-gauge.com\/vi\/san-pham\/pre4-h\/\" \/>\n<meta property=\"og:site_name\" content=\"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-02T00:51:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/11\/SJ-Gauge_Euro-warning_contact_pressure_gauge_L.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.sj-gauge.com\/product\/pre4-h\/\",\"url\":\"https:\/\/www.sj-gauge.com\/product\/pre4-h\/\",\"name\":\"Electric Contact Pressure Gauge | Alarm & Switch Function | SJ Gauge\",\"isPartOf\":{\"@id\":\"https:\/\/www.sj-gauge.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/11\/SJ-Gauge_Euro-warning_contact_pressure_gauge_L.jpg\",\"datePublished\":\"2025-11-13T03:09:44+00:00\",\"dateModified\":\"2026-04-02T00:51:54+00:00\",\"description\":\"Electric contact pressure gauge with alarm and switch function, designed for industrial automation and pressure control. Reliable and precise switching performance.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.sj-gauge.com\/product\/pre4-h\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#primaryimage\",\"url\":\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/11\/SJ-Gauge_Euro-warning_contact_pressure_gauge_L.jpg\",\"contentUrl\":\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/11\/SJ-Gauge_Euro-warning_contact_pressure_gauge_L.jpg\",\"width\":1200,\"height\":1000},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.sj-gauge.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Products\",\"item\":\"https:\/\/www.sj-gauge.com\/products\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Electric Contact Gauge, magnetic snap-action\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.sj-gauge.com\/#website\",\"url\":\"https:\/\/www.sj-gauge.com\/\",\"name\":\"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge\",\"description\":\"Manufacturer of industrial pressure gauges, pressure sensors, and transmitters. SJ Gauge provides high accuracy, durable materials, and custom solutions for oil &amp; gas, chemical, and industrial applications.\",\"publisher\":{\"@id\":\"https:\/\/www.sj-gauge.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.sj-gauge.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.sj-gauge.com\/#organization\",\"name\":\"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge\",\"url\":\"https:\/\/www.sj-gauge.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/www.sj-gauge.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/09\/logo.webp\",\"contentUrl\":\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/09\/logo.webp\",\"width\":348,\"height\":184,\"caption\":\"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge\"},\"image\":{\"@id\":\"https:\/\/www.sj-gauge.com\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t \u0111i\u1ec7n | Ch\u1ee9c n\u0103ng b\u00e1o \u0111\u1ed9ng v\u00e0 c\u00f4ng t\u1eafc | SJ Gauge","description":"\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t \u0111i\u1ec7n c\u00f3 ch\u1ee9c n\u0103ng b\u00e1o \u0111\u1ed9ng v\u00e0 c\u00f4ng t\u1eafc, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh cho t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p v\u00e0 \u0111i\u1ec1u khi\u1ec3n \u00e1p su\u1ea5t. Hi\u1ec7u su\u1ea5t chuy\u1ec3n m\u1ea1ch \u0111\u00e1ng tin c\u1eady v\u00e0 ch\u00ednh x\u00e1c.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.sj-gauge.com\/vi\/san-pham\/pre4-h\/","og_locale":"vi_VN","og_type":"article","og_title":"Electric Contact Gauge, magnetic snap-action","og_description":"Electric contact pressure gauge with alarm and switch function, designed for industrial automation and pressure control. Reliable and precise switching performance.","og_url":"https:\/\/www.sj-gauge.com\/vi\/san-pham\/pre4-h\/","og_site_name":"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge","article_modified_time":"2026-04-02T00:51:54+00:00","og_image":[{"width":1200,"height":1000,"url":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/11\/SJ-Gauge_Euro-warning_contact_pressure_gauge_L.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"1 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.sj-gauge.com\/product\/pre4-h\/","url":"https:\/\/www.sj-gauge.com\/product\/pre4-h\/","name":"\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t \u0111i\u1ec7n | Ch\u1ee9c n\u0103ng b\u00e1o \u0111\u1ed9ng v\u00e0 c\u00f4ng t\u1eafc | SJ Gauge","isPartOf":{"@id":"https:\/\/www.sj-gauge.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#primaryimage"},"image":{"@id":"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#primaryimage"},"thumbnailUrl":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/11\/SJ-Gauge_Euro-warning_contact_pressure_gauge_L.jpg","datePublished":"2025-11-13T03:09:44+00:00","dateModified":"2026-04-02T00:51:54+00:00","description":"\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t \u0111i\u1ec7n c\u00f3 ch\u1ee9c n\u0103ng b\u00e1o \u0111\u1ed9ng v\u00e0 c\u00f4ng t\u1eafc, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh cho t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p v\u00e0 \u0111i\u1ec1u khi\u1ec3n \u00e1p su\u1ea5t. Hi\u1ec7u su\u1ea5t chuy\u1ec3n m\u1ea1ch \u0111\u00e1ng tin c\u1eady v\u00e0 ch\u00ednh x\u00e1c.","breadcrumb":{"@id":"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.sj-gauge.com\/product\/pre4-h\/"]}]},{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#primaryimage","url":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/11\/SJ-Gauge_Euro-warning_contact_pressure_gauge_L.jpg","contentUrl":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/11\/SJ-Gauge_Euro-warning_contact_pressure_gauge_L.jpg","width":1200,"height":1000},{"@type":"BreadcrumbList","@id":"https:\/\/www.sj-gauge.com\/product\/pre4-h\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.sj-gauge.com\/"},{"@type":"ListItem","position":2,"name":"Products","item":"https:\/\/www.sj-gauge.com\/products\/"},{"@type":"ListItem","position":3,"name":"Electric Contact Gauge, magnetic snap-action"}]},{"@type":"WebSite","@id":"https:\/\/www.sj-gauge.com\/#website","url":"https:\/\/www.sj-gauge.com\/","name":"Chuy\u00ean gia v\u1ec1 c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t, nhi\u1ec7t \u0111\u1ed9 v\u00e0 c\u1ea3m bi\u1ebfn th\u00f4ng minh - SJ Gauge","description":"Nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t c\u00f4ng nghi\u1ec7p, c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t v\u00e0 b\u1ed9 truy\u1ec1n t\u00edn hi\u1ec7u. SJ Gauge cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao, \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb v\u1eadt li\u1ec7u b\u1ec1n b\u1ec9 v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p t\u00f9y ch\u1ec9nh d\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng trong ng\u00e0nh d\u1ea7u kh\u00ed, h\u00f3a ch\u1ea5t v\u00e0 c\u00f4ng nghi\u1ec7p.","publisher":{"@id":"https:\/\/www.sj-gauge.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.sj-gauge.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi"},{"@type":"Organization","@id":"https:\/\/www.sj-gauge.com\/#organization","name":"Chuy\u00ean gia v\u1ec1 c\u1ea3m bi\u1ebfn \u00e1p su\u1ea5t, nhi\u1ec7t \u0111\u1ed9 v\u00e0 c\u1ea3m bi\u1ebfn th\u00f4ng minh - SJ Gauge","url":"https:\/\/www.sj-gauge.com\/","logo":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/www.sj-gauge.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/09\/logo.webp","contentUrl":"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/09\/logo.webp","width":348,"height":184,"caption":"Your Expert in Pressure Temp and Smart Transmitters - SJ Gauge"},"image":{"@id":"https:\/\/www.sj-gauge.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.sj-gauge.com\/vi\/wp-json\/wp\/v2\/product\/1788","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sj-gauge.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.sj-gauge.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sj-gauge.com\/vi\/wp-json\/wp\/v2\/media\/1790"}],"wp:attachment":[{"href":"https:\/\/www.sj-gauge.com\/vi\/wp-json\/wp\/v2\/media?parent=1788"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.sj-gauge.com\/vi\/wp-json\/wp\/v2\/product_brand?post=1788"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.sj-gauge.com\/vi\/wp-json\/wp\/v2\/product_cat?post=1788"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.sj-gauge.com\/vi\/wp-json\/wp\/v2\/product_tag?post=1788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}