How to change temperature unit?

Press and hold "SET" button, power on the heater and then release "SET" button, the temperature unit will be changed between C and F.

The device displays the “E1” error code during use. How can this be resolved?

The power will be cut off and stop heating automatically if the heater leaves the water or the heater do not fully immerse in the water. Display 'E1' error code. The heater will re-work if it goes back to water.

The device displays the “H1” error code during use. How can this be resolved?

The power will be cut off and stop heating automatically if the water temperature exceeds 95°F, Display 'H1' error code. The heater will re-work if the water temperature below 93°F.

Mini Aquarium Heater 5v 2a Usb 10w Small Fish Tank

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 29.08

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Tiny heater, huge comfort—keep your tank perfectly cozy!

SMART TEMP MEMORY - Keeps your set temperature intact even after power interruptions—no resets needed.
HANDS FREE CONTROL - 52-inch external controller lets you adjust temps without getting wet or buying extras.
SPACE SAVVY POWERHOUSE - Mini 2-inch design that maximizes tank space without compromising heat.
SAFETY FIRST OVERHEAT GUARD - Auto-shuts at 95°F with clear 'HI' alert to protect your aquatic friends.
UNIVERSAL AQUATIC COMPATIBILITY - Perfect for freshwater & saltwater tanks, supporting diverse species from Betta to Clownfish.

This Mini Aquarium Heater delivers precise 10W heating in a compact 2-inch form factor, powered conveniently via USB (5V/2A). Featuring intelligent memory to retain temperature settings after power loss, an external 52-inch controller for easy adjustments, and built-in overheat protection that halts operation above 95°F, it’s ideal for small 1-gallon tanks housing a variety of freshwater and saltwater species.

Specifications

ASIN	B09TKC14HJ
ASIN	B09TKC14HJ
Best Sellers Rank	#15,078 in Pet Supplies ( See Top 100 in Pet Supplies ) #25 in Aquarium Heaters
Brand Name	YOFOTHS
Color	Black
Customer Reviews	4.0 4.0 out of 5 stars (370)
Date First Available	March 8, 2022
Date First Available	March 8, 2022
Included Components	Aquarium Heater, Instruction manual
Item Package Dimensions L x W x H	6.02 x 4.17 x 2.05 inches
Item Weight	4.2 ounces
Manufacturer	YOFOTHS
Manufacturer	YOFOTHS
Number of Items	1
Package Dimensions	6.02 x 4.17 x 2.05 inches; 4.16 ounces
Size	USB-10W
Specific Uses for Product	Fish tank heating
Target Audience Keyword	fish

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