They have electronic thermostats for accurate temperature settings and safety.
Aqueon preset aquarium heater 150w.
Additionally there is an adjustable heat settings ranging from 68 88 an led which illuminates when actively heating.
Adjustable heaters have manual temperature knob that ranges from 68 to 88 f.
Automatic shut off when the temperature is reached.
The aqueon pro heaters are built with a durable non corrosive shell for strength and even heat distribution.
Preset heaters require no adjustment and have been calibrated to 78 f.
This aquarium heater by orlushy has four power options available a 100w model suitable for tanks from 15 to 30 gallons 150w suitable for 30 50 gallons 200w suitable for 40 60 gallons and a 300w model suitable for tanks from 50 to 80 gallons.
The preset temperature has been calibrated to 78 appropriate for most tropical fish.
Aqueon preset heaters require no adjusting.
A power indicator light turns on when the unit is heating.
The fully submersible heaters are constructed of shatter resistant quartz glass and features an automatic safety shut off to avoid overheating.
Aqueon submersible aquarium heaters are made from thermal shatter resistant quartz glass and were designed to absorb impacts making them extremely durable.
Each unit is fully submersible shatter resistant and equipped with an electronic thermostat that provides accurate and reliable heating.
The preset temperature has been calibrated to 78 appropriate for most tropical fish.
When the heater is actively heating it will be shown with a red led indicator light.
The thermal shatter resistant quartz makes this heater extremely durable and accurate to within one degree.
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The aqueon preset aquarium heaters are fully submersible and preset at a 78f temperature suitable for tropical fish.
An led indicator light displays red when actively heating.
It is important to understand whether or not the aquarium heater is programmed to turn off when not fully immersed in water which is helpful during water changes when the water level goes very low.
An led indicator light displays red when actively heating.
The fully submersible heaters are constructed of shatter resistant quartz glass and features an automatic safety shut off to avoid overheating.