{"id":9167,"date":"2026-08-18T09:45:49","date_gmt":"2026-08-18T09:45:49","guid":{"rendered":"https:\/\/airmate.cc\/?post_type=product&p=9167"},"modified":"2026-08-18T10:01:29","modified_gmt":"2026-08-18T10:01:29","slug":"ag-48414197430","status":"publish","type":"product","link":"https:\/\/airmate.cc\/zh\/product\/ag-48414197430\/","title":{"rendered":"\u6c14\u4f53\u6d53\u5ea6\u68c0\u6d4b\u4e3b\u677f 4-20mA\/RS485\/\u7ee7\u7535\u5668\u8f93\u51fa"},"content":{"rendered":"
\n
\n

Product Details<\/h2>\n

Gas Concentration Detector Main Board \/ Alarm Control Board<\/p>\n

<\/p>\n

Product type: gas detector main board and display board solution<\/p>\n

Output signal: 4-20mA \/ RS485 \/ relay output<\/p>\n

Optional modules: LCD display, LED display board, 4G communication chip, LoRa wireless module<\/p>\n

Application: fixed gas detector, industrial gas alarm, carbon monoxide detector, gas transmitter, OEM gas detection projects.<\/p>\n

<\/p>\n

Features:<\/p>\n

Supports 4-20mA output<\/p>\n

Supports RS485 communication<\/p>\n

2-channel relay output<\/p>\n

Optional 4G long-distance communication<\/p>\n

Optional LoRa wireless communication<\/p>\n

Suitable for various metal detector housings and easy installation<\/p>\n

One-on-one technical support for customization and debugging<\/p>\n

<\/p>\n

Package includes:<\/p>\n

1 x Gas Detector Main Board Set<\/p>\n

<\/p>\n

About Us:<\/p>\n

We are a source manufacturer focused on gas detection products, circuit board development and OEM customization. We provide gas detector main boards, gas sensor modules, alarm control boards, display boards and communication modules.<\/p>\n

<\/p>\n

Our team supports PCB design, firmware development, sensor matching, product debugging, OEM \/ ODM production and technical support. We can help customers develop customized gas detection products according to different applications, housings, display requirements and communication methods.<\/p>\n

<\/p>\n

We provide stable quality, fast response and one-to-one technical support. For bulk orders, customized projects or gas detector solutions, please contact us for details.<\/p>\n<\/section>\n

\n

Available Models & Reference Prices<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nModel \/ SKU<\/th>\nReference Price<\/th>\n<\/tr>\n<\/thead>\n
Detector PCB + LCD + Round PCB<\/td>\nBOARD-LCD-ROUND<\/td>\n$47.94 USD<\/span><\/td>\n<\/tr>\n
Detector PCB + Bright LED<\/td>\nBOARD-BRIGHT-LED<\/td>\n$30.82 USD<\/span><\/td>\n<\/tr>\n
Detector PCB + LED + LoRa<\/td>\nBOARD-LED-LORA<\/td>\n$104.34 USD<\/span><\/td>\n<\/tr>\n
Detector PCB + LED + 4G Chip<\/td>\nBOARD-LED-4G<\/td>\n$104.34 USD<\/span><\/td>\n<\/tr>\n
Detector Enclosure (2 pcs)<\/td>\nHOUSING-2PCS<\/td>\n$39.63 USD<\/span><\/td>\n<\/tr>\n
Detector Enclosure V2<\/td>\nHOUSING-V2<\/td>\n$30.82 USD<\/span><\/td>\n<\/tr>\n
O2 Oxygen Module<\/td>\nO2-MODULE<\/td>\n$58.37 USD<\/span><\/td>\n<\/tr>\n
CO2 Module<\/td>\nCO2-MODULE<\/td>\n$191.33 USD<\/span><\/td>\n<\/tr>\n
NO Module<\/td>\nNO-MODULE<\/td>\n$62.61 USD<\/span><\/td>\n<\/tr>\n
H2S Module<\/td>\nH2S-MODULE<\/td>\n$62.61 USD<\/span><\/td>\n<\/tr>\n
CO Module<\/td>\nCO-MODULE<\/td>\n$43.86 USD<\/span><\/td>\n<\/tr>\n
H2 Module<\/td>\nH2-MODULE<\/td>\n$191.33 USD<\/span><\/td>\n<\/tr>\n
Built-in Pump Suction<\/td>\nBUILTIN-PUMP<\/td>\n$106.46 USD<\/span><\/td>\n<\/tr>\n
Combustible Sensor (10 pcs)<\/td>\nCOMBUSTIBLE-10PCS<\/td>\n$47.94 USD<\/span><\/td>\n<\/tr>\n
N55A Imported Sensor x5<\/td>\nN55A-5PCS<\/td>\n$33.43 USD<\/span><\/td>\n<\/tr>\n
N55S Imported Sensor x5<\/td>\nN55S-5PCS<\/td>\n$35.39 USD<\/span><\/td>\n<\/tr>\n
4-Series O2 Sensor Board Set<\/td>\n4SERIES-O2-SET<\/td>\n$73.05 USD<\/span><\/td>\n<\/tr>\n
7-Series O3 Sensor Board Set<\/td>\n7SERIES-O3-SET<\/td>\n$37.51 USD<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The displayed currency follows the current language. Prices are for selection reference only; contact us to confirm the final quotation, lead time, and configuration.<\/p>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

Gas Concentration Detector Main Board \/ Alarm Control Board Product type: gas detector main board and display board solution Output signal: 4-20mA \/ RS485 \/ relay output Optional modules: LCD display, LED display board, 4G communication chip, LoRa wireless\u2026<\/p>","protected":false},"featured_media":9168,"comment_status":"open","ping_status":"closed","template":"","meta":{"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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