{"product_id":"ebyte-kth2-e-rs485-temperature-humidity-acquisition-module-modbus-rtu-dc-7-36v-industrial-sensor","title":"Ebyte KTH2-E RS485 Temperature Humidity Acquisition Module Modbus RTU DC 7-36V Industrial Sensor","description":"\u003cp\u003eThe KTH2-E is an industrial-grade RS485 temperature and humidity acquisition module featuring DC 7–36V wide-voltage input, Modbus RTU communication, high-precision environmental monitoring, and conformal coating protection for reliable operation in industrial control cabinets and automation systems.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; text-align: center;\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 7.79924%;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"width: 10.7074%;\"\u003eSensor Structure\u003c\/th\u003e\n\u003cth style=\"width: 10.443%;\"\u003eProbe Type\u003c\/th\u003e\n\u003cth style=\"width: 9.78209%;\"\u003eCable Material\u003c\/th\u003e\n\u003cth style=\"width: 16.1272%;\"\u003eCommunication\u003c\/th\u003e\n\u003cth style=\"width: 8.85676%;\"\u003eSupply Voltage\u003c\/th\u003e\n\u003cth style=\"width: 9.6499%;\"\u003eProtocol\u003c\/th\u003e\n\u003cth style=\"width: 11.3684%;\"\u003eProtection Features\u003c\/th\u003e\n\u003cth style=\"width: 15.2019%;\"\u003eRecommended Applications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 7.79924%;\"\u003eKTH2-E\u003c\/td\u003e\n\u003ctd style=\"width: 10.7074%;\"\u003eIntegrated Sensor\u003c\/td\u003e\n\u003ctd style=\"width: 10.443%;\"\u003eBuilt-in\u003c\/td\u003e\n\u003ctd style=\"width: 9.78209%;\"\u003e—\u003c\/td\u003e\n\u003ctd style=\"width: 16.1272%;\"\u003eRS485\u003c\/td\u003e\n\u003ctd style=\"width: 8.85676%;\"\u003eDC 7-36V\u003c\/td\u003e\n\u003ctd style=\"width: 9.6499%;\"\u003eModbus RTU\u003c\/td\u003e\n\u003ctd style=\"width: 11.3684%;\"\u003eConformal Coating\u003c\/td\u003e\n\u003ctd style=\"width: 15.2019%;\"\u003eIndustrial Control Cabinets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 7.79924%;\"\u003e\u003ca href=\"https:\/\/ebyteiot.com\/products\/ebyte-kth2-ri-kth2-rv-din-rail-temperature-humidity-transmitter-0-10v-4-20ma-output-dc24v\" target=\"_blank\" rel=\"noopener\"\u003eKTH2-RI\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 10.7074%;\"\u003eRemote Sensor\u003c\/td\u003e\n\u003ctd style=\"width: 10.443%;\"\u003ePlastic Probe\u003c\/td\u003e\n\u003ctd style=\"width: 9.78209%;\"\u003eIndustrial Cable\u003c\/td\u003e\n\u003ctd style=\"width: 16.1272%;\"\u003eRS485\u003c\/td\u003e\n\u003ctd style=\"width: 8.85676%;\"\u003eDC 7-36V\u003c\/td\u003e\n\u003ctd style=\"width: 9.6499%;\"\u003eModbus RTU\u003c\/td\u003e\n\u003ctd style=\"width: 11.3684%;\"\u003eConformal Coating\u003c\/td\u003e\n\u003ctd style=\"width: 15.2019%;\"\u003eIndustrial Equipment Monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 7.79924%;\"\u003eKTH2-RV\u003c\/td\u003e\n\u003ctd style=\"width: 10.7074%;\"\u003eRemote Sensor\u003c\/td\u003e\n\u003ctd style=\"width: 10.443%;\"\u003eVentilated Probe\u003c\/td\u003e\n\u003ctd style=\"width: 9.78209%;\"\u003eIndustrial Cable\u003c\/td\u003e\n\u003ctd style=\"width: 16.1272%;\"\u003eRS485\u003c\/td\u003e\n\u003ctd style=\"width: 8.85676%;\"\u003eDC 7-36V\u003c\/td\u003e\n\u003ctd style=\"width: 9.6499%;\"\u003eModbus RTU\u003c\/td\u003e\n\u003ctd style=\"width: 11.3684%;\"\u003eConformal Coating\u003c\/td\u003e\n\u003ctd style=\"width: 15.2019%;\"\u003eGeneral Industrial Monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 7.79924%;\"\u003eKTH2-R-PVC\u003c\/td\u003e\n\u003ctd style=\"width: 10.7074%;\"\u003eRemote Sensor\u003c\/td\u003e\n\u003ctd style=\"width: 10.443%;\"\u003eExternal Probe\u003c\/td\u003e\n\u003ctd style=\"width: 9.78209%;\"\u003ePVC Cable\u003c\/td\u003e\n\u003ctd style=\"width: 16.1272%;\"\u003eRS485\u003c\/td\u003e\n\u003ctd style=\"width: 8.85676%;\"\u003eDC 7-36V\u003c\/td\u003e\n\u003ctd style=\"width: 9.6499%;\"\u003eModbus RTU\u003c\/td\u003e\n\u003ctd style=\"width: 11.3684%;\"\u003eConformal Coating\u003c\/td\u003e\n\u003ctd style=\"width: 15.2019%;\"\u003eIndoor Environmental Monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 7.79924%;\"\u003eKTH2-R-PE\u003c\/td\u003e\n\u003ctd style=\"width: 10.7074%;\"\u003eRemote Sensor\u003c\/td\u003e\n\u003ctd style=\"width: 10.443%;\"\u003eExternal Probe\u003c\/td\u003e\n\u003ctd style=\"width: 9.78209%;\"\u003ePE Cable\u003c\/td\u003e\n\u003ctd style=\"width: 16.1272%;\"\u003eRS485\u003c\/td\u003e\n\u003ctd style=\"width: 8.85676%;\"\u003eDC 7-36V\u003c\/td\u003e\n\u003ctd style=\"width: 9.6499%;\"\u003eModbus RTU\u003c\/td\u003e\n\u003ctd style=\"width: 11.3684%;\"\u003eConformal Coating\u003c\/td\u003e\n\u003ctd style=\"width: 15.2019%;\"\u003eOutdoor \u0026amp; Humid Environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 7.79924%;\"\u003eKTH2-R-M\u003c\/td\u003e\n\u003ctd style=\"width: 10.7074%;\"\u003eRemote Sensor\u003c\/td\u003e\n\u003ctd style=\"width: 10.443%;\"\u003eMetal Probe\u003c\/td\u003e\n\u003ctd style=\"width: 9.78209%;\"\u003eIndustrial Cable\u003c\/td\u003e\n\u003ctd style=\"width: 16.1272%;\"\u003eRS485\u003c\/td\u003e\n\u003ctd style=\"width: 8.85676%;\"\u003eDC 7-36V\u003c\/td\u003e\n\u003ctd style=\"width: 9.6499%;\"\u003eModbus RTU\u003c\/td\u003e\n\u003ctd style=\"width: 11.3684%;\"\u003eConformal Coating\u003c\/td\u003e\n\u003ctd style=\"width: 15.2019%;\"\u003eHarsh Industrial Applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/01_c3075ecb-3e61-46ba-8628-bf7dba234916.jpg?v=1783581757\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/02_14c0d266-3b10-4342-a6c4-1d66cf7a175b.jpg?v=1783581773\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/03_a07ae203-e6b3-4c7b-a9af-864dac2d2b17.jpg?v=1783582001\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/04_d5796bd8-fba2-4d58-bc7a-99ad63015210.jpg?v=1783582286\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/05_16312e7c-e717-4352-9f0f-161758abfc79.jpg?v=1783582300\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/06_e7cdc6a5-c337-4d9f-a329-9700164a647d.jpg?v=1783582314\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/07_3aa8f15a-c276-447f-a091-fb947260b135.jpg?v=1783582353\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/08_d43926f9-6bbb-44f1-b3ba-c712d351ac44.jpg?v=1783582465\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/09_f26e5193-7896-4b0c-b33e-6d56e893e93c.jpg?v=1783582528\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/10_d18adadb-c1fd-4c42-94ea-16ac74c626d7.jpg?v=1783582542\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/11_75fc3f03-c72a-4842-919a-a705584af146.jpg?v=1783582557\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1cejcpl\" data-start=\"1757\" data-end=\"1784\" class=\"PDq2pG_selectionAnchorContainer\" style=\"text-align: center;\"\u003e5. Application Scenarios\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch3 data-section-id=\"priv6k\" data-start=\"1786\" data-end=\"1820\"\u003e1. Industrial Control Cabinets\u003c\/h3\u003e\n\u003cp data-start=\"1822\" data-end=\"2181\"\u003eThe KTH2-E continuously monitors temperature and humidity inside electrical control cabinets through the RS485 interface. The DC 7–36V wide-voltage design allows direct connection to 12V or 24V industrial power supplies, while Modbus RTU enables centralized monitoring through PLCs and SCADA systems, reducing the risk of condensation and electrical failures.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ajzyfu\" data-start=\"2183\" data-end=\"2217\"\u003e2. Power Distribution Cabinets\u003c\/h3\u003e\n\u003cp data-start=\"2219\" data-end=\"2525\"\u003ePower distribution equipment is vulnerable to excessive humidity and temperature rise. The KTH2-E provides accurate digital environmental monitoring and communicates reliably over RS485 networks. Its conformal-coated PCB effectively resists moisture, mold, and salt spray, extending equipment service life.\u003c\/p\u003e\n\u003ch3 data-section-id=\"isgid6\" data-start=\"2527\" data-end=\"2562\"\u003e3. Factory Automation Equipment\u003c\/h3\u003e\n\u003cp data-start=\"2564\" data-end=\"2859\"\u003eIndustrial automation systems often experience strong electromagnetic interference. The differential RS485 communication of the KTH2-E significantly improves signal integrity compared with analog sensors, ensuring stable environmental data transmission over long industrial communication cables.\u003c\/p\u003e\n\u003ch3 data-section-id=\"kktzxo\" data-start=\"2861\" data-end=\"2898\"\u003e4. Smart Buildings \u0026amp; HVAC Systems\u003c\/h3\u003e\n\u003cp data-start=\"2900\" data-end=\"3184\"\u003eThe module integrates seamlessly into building management systems using the standard Modbus RTU protocol. Its wide operating voltage simplifies installation while enabling real-time monitoring of temperature and humidity in equipment rooms, data centers, and air-conditioning systems.\u003c\/p\u003e\n\u003chr data-start=\"3186\" data-end=\"3189\"\u003e\n\u003ch2 data-section-id=\"19dafnc\" data-start=\"3191\" data-end=\"3210\"\u003e6. Technical FAQ\u003c\/h2\u003e\n\u003cp data-start=\"3212\" data-end=\"3292\"\u003eQ: Why does the KTH2-E use RS485 communication instead of analog voltage output?\u003c\/p\u003e\n\u003cp data-start=\"3294\" data-end=\"3624\"\u003eA: RS485 adopts differential signal transmission, providing excellent immunity against electromagnetic interference commonly found in industrial environments. Combined with the Modbus RTU protocol, multiple Ebyte KTH2-E modules can communicate on the same bus, reducing wiring complexity while improving communication reliability.\u003c\/p\u003e\n\u003cp data-start=\"3626\" data-end=\"3689\"\u003eQ: What advantages does the DC 7–36V operating voltage provide?\u003c\/p\u003e\n\u003cp data-start=\"3691\" data-end=\"3990\"\u003eA: The wide input voltage allows the module to operate directly from standard 12V, 24V, and 36V industrial power supplies without additional DC-DC converters. This improves compatibility with PLC cabinets, automation controllers, and distributed monitoring systems while reducing installation costs.\u003c\/p\u003e\n\u003cp data-start=\"3992\" data-end=\"4056\"\u003eQ: How does the conformal coating improve long-term reliability?\u003c\/p\u003e\n\u003cp data-start=\"4058\" data-end=\"4333\"\u003eA: The PCB of the KTH2-E is coated with industrial-grade conformal coating that protects against moisture, mold, dust, and salt spray. This makes the module suitable for humid factories, coastal installations, electrical cabinets, and other demanding industrial environments.\u003c\/p\u003e\n\u003cp data-start=\"4335\" data-end=\"4400\"\u003eQ: Can multiple KTH2-E modules share one RS485 communication bus?\u003c\/p\u003e\n\u003cp data-start=\"4402\" data-end=\"4664\"\u003eA: Yes. Each module supports configurable Modbus RTU slave addresses. When proper RS485 bus topology, 120 Ω termination resistors, and communication parameters are configured correctly, multiple KTH2-E modules can operate reliably on the same industrial network.\u003c\/p\u003e\n\u003cp data-start=\"4666\" data-end=\"4736\"\u003eQ: What installation considerations should engineers pay attention to?\u003c\/p\u003e\n\u003cp data-start=\"4738\" data-end=\"5011\"\u003eA: To obtain the highest measurement accuracy, the module should be installed away from heat sources, high-power switching devices, and direct airflow. Proper cable routing and RS485 shielding further improve communication stability and reduce electromagnetic interference.\u003c\/p\u003e\n\u003cp data-path-to-node=\"15\"\u003e \u003c\/p\u003e","brand":"CDEBYTE IoT Module Store","offers":[{"title":"Default Title","offer_id":48598888415437,"sku":"KTH2-E","price":18.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0615\/5911\/1885\/files\/01_c40cc090-827a-46d9-8f55-fd653fc0dc7e.jpg?v=1783581099","url":"https:\/\/ebyteiot.com\/pt\/products\/ebyte-kth2-e-rs485-temperature-humidity-acquisition-module-modbus-rtu-dc-7-36v-industrial-sensor","provider":"Ebyte Official Store - IoT Module Manufacturer","version":"1.0","type":"link"}