
Hailea Aquarium 40L – White ^E40
August 13, 2025
Eheim Thermocontrol e 300 Heater
August 13, 2025Code:
DA52
Bar Code:
4011708005095
The obvious ideas are often the best. This also applies to the aquarium heating element. It is simply hung in the water and heats it up. The principle is the same as it was decades ago. But in the meantime, the EHEIM controller heater has become an ultra-modern thermal device. The temperature can be set precisely and is measured even more precisely and kept more constant by the electronics. The coating made of special laboratory glass increases the heating surface, serves as a heat shield and ensures even heat emission.
Diameter: 36mm
Min. temp: 20 degrees
Max. temp: 32 degrees
Performance at 50 Hz: 200 Watt
For aquariums of about.: 300L
For aquariums up to approx.: 400L
Height: 396mm
Freshwater: Yes
Seawater: Yes
Advantages of the EHEIM thermocontrol-e Control Heater
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Precise temperature adjustment from 20 to 32 °C
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No need for manual readjustment
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High control accuracy of ± 0.5 °C
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Maintains a constant, stable water temperature
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Control lamp indicates heating status
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Red: heating up
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Green: desired temperature reached
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Fully submersible and completely waterproof
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Dry-running protection with Thermo Safety Control
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Special laboratory glass coating:
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Increases the heating surface
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Ensures optimal, even heat output
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Safe for fish to touch (acts as a heat shield)
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Coating is pollutant-free and safe for aquatic life
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Resistant to chemical and biological substances
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No cracks or micro-fractures to allow condensation
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Shock-resistant and handles extreme temperature changes
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Convenient cable length of approx. 170 cm
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Includes double suction holder for secure placement
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Suitable for both freshwater and marine aquariums
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Exceptional safety and reliability
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3-year manufacturer warranty
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Designed and manufactured in Germany
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Stands for precision, comfort, quality, and safety
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