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This will keep the temp recorded even when unplugged. Feel free to let us know if you have any further questions!
This heater will be able to control itself to turn on or off if above or below the set temperature. Feel free to let us know if you have any further questions!
Finnex HMA-S heaters come with an attached analog controller that will allow you to precisely set the temperature within your aquarium. These heaters are great for fresh or saltwater aquariums that require a stable, and safe heating system. The HMA-S heaters will keep the temperature within a range of +/- 2 degrees from the set point and with the heating indicating LED you will know when the heater is producing heat or not.
Finnex HMA-S Heater Comparison Chart
|Model||Wattage||Amp||Control Range||Tank Size||Overall Length|
|HMA-S 50||50||.45||68 - 92 degrees||1 - 20 gal||5.75 inch|
|HMA-S 100||100||.9||68 - 92 degrees||21 - 30 gal||6.75 inch|
|HMA-S 150||150||1.35||68 - 92 degrees||31 - 60 gal||8.0 inch|
|HMA-S 200||200||1.8||68 - 92 degrees||61 - 80 gal||10.75 inch|
|HMA-S 300||300||2.7||68 - 92 degrees||81 - 100 gal||12.0 inch|
|HMA-S 500||500||4.5||68 - 92 degrees||101 - 120 gal||14.5 inch|
Good Heater With a poor self thermometer By Andy on 11/28/2016Andy would recommend this product to a friendI have the 300 watt version of this heater. It is very stable and does a good job heating my 75 gallon reef tank. However, I had to set the temperature up to 81 degrees so that I could get it up to around 78 degrees where I like to keep my tank. Glad I have my tank controller to keep the truth about the real temperature.