{"product_id":"trolmaster-rj12-splitter-hub-sph-1","title":"TrolMaster - RJ12 Splitter Hub (SPH-1)","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:5e4a40ef-0b6f-4e22-b325-598d0a8bf4c4-6\" data-testid=\"conversation-turn-14\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"bb5b34d5-c133-4e73-a248-7228b7301f49\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"44\" data-end=\"501\"\u003eThe TrolMaster SPH-1 RJ12 Splitter Hub is designed to simplify the installation and expansion of TrolMaster environmental control systems in indoor growing setups. When running multiple sensors, lighting adapters and device modules in a grow tent or grow room, cable management can quickly become messy and difficult to scale. The SPH-1 solves this by providing a clean, central connection hub that allows multiple devices to connect to a single controller.\u003c\/p\u003e\n\u003cp data-start=\"503\" data-end=\"854\"\u003eUsing one RJ12 input, the SPH-1 provides eight RJ12 output ports for connecting TrolMaster sensors, device stations and lighting adapters. As a powered hub, it also boosts signal strength across the network, ensuring reliable communication between devices and allowing growers to expand their hydroponics or indoor growing systems without signal loss.\u003c\/p\u003e\n\u003cp data-start=\"856\" data-end=\"872\"\u003e\u003cstrong data-start=\"856\" data-end=\"872\"\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"874\" data-end=\"1358\"\u003e• Expands a single RJ12 controller port into 8 RJ12 connections\u003cbr data-start=\"937\" data-end=\"940\"\u003e• Powered hub boosts signal strength for stable communication\u003cbr data-start=\"1001\" data-end=\"1004\"\u003e• Enables connection of multiple sensors, device modules and lighting adapters\u003cbr data-start=\"1082\" data-end=\"1085\"\u003e• Helps maintain a clean and organised grow room installation\u003cbr data-start=\"1146\" data-end=\"1149\"\u003e• Ideal for larger hydroponic systems and advanced indoor growing setups\u003cbr data-start=\"1221\" data-end=\"1224\"\u003e• Supports control of large numbers of LED or HID grow lights\u003cbr data-start=\"1285\" data-end=\"1288\"\u003e• Plug \u0026amp; play setup for easy integration with TrolMaster controllers\u003c\/p\u003e\n\u003cp data-start=\"1360\" data-end=\"1391\"\u003e\u003cstrong data-start=\"1360\" data-end=\"1391\"\u003eHow It Solves Grow Problems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1393\" data-end=\"1693\"\u003eAs indoor growing setups expand, growers often add more sensors, lighting adapters and environmental control modules to optimise plant health. Without a central hub, this can lead to messy daisy-chaining of cables using multiple Y-splitters, making installations difficult to manage and troubleshoot.\u003c\/p\u003e\n\u003cp data-start=\"1695\" data-end=\"1950\"\u003eThe SPH-1 provides a central connection point that simplifies wiring and improves reliability across the control network. With signal boosting built in, it allows more modules, sensors and lighting controllers to be connected without communication issues.\u003c\/p\u003e\n\u003cp data-start=\"1952\" data-end=\"2240\"\u003eFor growers running larger grow rooms or multiple hydroponic systems, the SPH-1 makes it easier to scale environmental control. This helps maintain consistent conditions for vegetative growth and flowering, supporting stable environments that lead to healthier plants and improved yields.\u003c\/p\u003e\n\u003cp data-start=\"2242\" data-end=\"2258\"\u003e\u003cstrong data-start=\"2242\" data-end=\"2258\"\u003eKit Contents\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2260\" data-end=\"2341\"\u003e• 1 × SPH-1 RJ12 Splitter Hub\u003cbr data-start=\"2289\" data-end=\"2292\"\u003e• 1 × 12V power adapter\u003cbr data-start=\"2315\" data-end=\"2318\"\u003e• 1 × 4 ft RJ12 cable\u003c\/p\u003e\n\u003cp data-start=\"2343\" data-end=\"2357\"\u003e\u003cstrong data-start=\"2343\" data-end=\"2357\"\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003col data-start=\"2359\" data-end=\"2788\"\u003e\n\u003cli data-start=\"2359\" data-end=\"2446\"\u003e\n\u003cp data-start=\"2362\" data-end=\"2446\"\u003eConnect the SPH-1 hub to your TrolMaster controller using the supplied RJ12 cable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2447\" data-end=\"2520\"\u003e\n\u003cp data-start=\"2450\" data-end=\"2520\"\u003ePlug the included 12V power adapter into the SPH-1 to power the hub.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2521\" data-end=\"2609\"\u003e\n\u003cp data-start=\"2524\" data-end=\"2609\"\u003eMount or position the hub in a central location within your grow room or grow tent.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2610\" data-end=\"2704\"\u003e\n\u003cp data-start=\"2613\" data-end=\"2704\"\u003eConnect sensors, device modules or lighting adapters to the individual RJ12 output ports.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2705\" data-end=\"2788\"\u003e\n\u003cp data-start=\"2708\" data-end=\"2788\"\u003eConfigure the connected devices through the TrolMaster controller as required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-start=\"2790\" data-end=\"2818\"\u003e\u003cstrong data-start=\"2790\" data-end=\"2818\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2820\" data-end=\"2978\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Input Voltage: 12V DC\u003cbr data-start=\"2843\" data-end=\"2846\"\u003e• Maximum Current: 1A\u003cbr data-start=\"2867\" data-end=\"2870\"\u003e• Operating Temperature: 32–122°F\u003cbr data-start=\"2903\" data-end=\"2906\"\u003e• Maximum Humidity: ≤90%\u003cbr data-start=\"2930\" data-end=\"2933\"\u003e• Dimensions: 160mm (L) × 85mm (W) × 90mm (H)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"Hydro Crop Shop","offers":[{"title":"Default Title","offer_id":52714860577034,"sku":null,"price":29.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/meters-sensors-trolmaster-rj12-splitter-hub-sph-1-36699118698711.webp?v=1773570870","url":"https:\/\/hydrocropshop.co.uk\/products\/trolmaster-rj12-splitter-hub-sph-1","provider":"Hydro Crop Shop","version":"1.0","type":"link"}