{"product_id":"digital-submersible-100w-aquarium-heater","title":"Digital Submersible 100W Aquarium Heater","description":"\u003ch2\u003eWhy you'll love it\u003c\/h2\u003e\n\u003cp\u003eKeep your aquatic friends comfortable with precise temperature control and smart safety features. This digital heater prevents overheating and dry running while maintaining perfect water temps for healthy fish and turtles.\u003c\/p\u003e\n\u003cem\u003eKeep reading for all the technical details.\u003c\/em\u003e\n\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThis 100-watt submersible heater is designed for smaller tanks, handling 12-25 gallon aquariums with ease. The external digital controller lets you adjust temperatures from 68°F to 93°F (20°C to 34°C) without getting your hands wet. The LED display shows real-time temperature and error codes for easy monitoring.\u003c\/p\u003e\n\n\u003cp\u003eBuilt with a thickened explosion-proof quartz tube and metal-ceramic heating elements, this heater provides fast, energy-efficient warming. After 72 hours of continuous operation, it maintains consistent water temperature. The 5.35 ft (1.6 m) power cord gives you flexibility in tank placement.\u003c\/p\u003e\n\n\u003cp\u003eSmart safety features include automatic dry-run protection (E1 error code) and overheating protection (E2 error code). If either error appears, simply remove the heater from water and reinsert to reset.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eInteresting Points\u003c\/h3\u003e\n\n\u003ch4\u003eSmart Safety Features\u003c\/h4\u003e\n\u003cp\u003eThe intelligent induction unit with auto memory function protects both you and your fish. Built-in sensors detect dry running and overheating conditions, automatically shutting down to prevent damage.\u003c\/p\u003e\n\n\u003ch4\u003eExternal Digital Control\u003c\/h4\u003e\n\u003cp\u003eNo more reaching into the tank to adjust settings. The external controller with LED display lets you monitor and adjust temperature precisely while keeping your hands dry.\u003c\/p\u003e\n\n\u003ch4\u003eEnergy Efficient Design\u003c\/h4\u003e\n\u003cp\u003eMetal-ceramic heating elements provide fast, consistent heating while using less electricity. The explosion-proof quartz construction ensures long-lasting durability.\u003c\/p\u003e\n\n\u003ch4\u003eVersatile Installation\u003c\/h4\u003e\n\u003cp\u003eInstall vertically in fish tanks or horizontally in turtle tanks. The compact design works perfectly in low water level setups where larger heaters won't fit.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower: 100 watts\u003c\/li\u003e\n\u003cli\u003eTank capacity: 12-25 gallons\u003c\/li\u003e\n\u003cli\u003eTemperature range: 68°F to 93°F (20°C to 34°C)\u003c\/li\u003e\n\u003cli\u003ePower cord length: 5.35 ft (1.6 m)\u003c\/li\u003e\n\u003cli\u003eConstruction: Explosion-proof quartz tube\u003c\/li\u003e\n\u003cli\u003eHeating elements: Metal-ceramic\u003c\/li\u003e\n\u003cli\u003eDisplay: LED digital with error codes\u003c\/li\u003e\n\u003cli\u003eSafety features: Anti-dry protection (E1), overheating protection (E2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUsage Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePress and hold for 3 seconds to toggle between °C and °F\u003c\/li\u003e\n\u003cli\u003eDo not bury heater in sand or substrate\u003c\/li\u003e\n\u003cli\u003eInstall vertically in fish tanks, horizontally in turtle tanks\u003c\/li\u003e\n\u003cli\u003eIf error codes E1 or E2 appear, remove from water and reinsert to reset\u003c\/li\u003e\n\u003cli\u003eAllow 72 hours for temperature stabilization\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Inclusion\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e100W submersible aquarium heater\u003c\/li\u003e\n\u003cli\u003eExternal digital temperature controller\u003c\/li\u003e\n\u003cli\u003ePower cord (5.35 ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cstrong\u003ePerfect for betta tanks, turtle habitats, and small aquariums where precise temperature control matters. The digital display and external controller make monitoring effortless while smart safety features give you peace of mind.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eShipping and Returns\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eListed Shipping:\u003c\/strong\u003e 2–4 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReturns:\u003c\/strong\u003e \u003ca rel=\"noopener\" style=\"color: #2563eb; text-decoration: underline; font-weight: 600;\" href=\"https:\/\/www.tailrings.com\/blogs\/faqs\/shipping-and-returns#returns\" target=\"_blank\"\u003eReturns policy\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TailRings.com","offers":[{"title":"100w (12 to 25 gallon tank)","offer_id":51264021791005,"sku":"B0DGG4L9B9","price":64.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/8052\/4317\/files\/digital-aquarium-heater-temperature-display-controller.jpg?v=1778297820","url":"https:\/\/www.tailrings.com\/products\/digital-submersible-100w-aquarium-heater","provider":"TailRings.com","version":"1.0","type":"link"}