Eheim Jager Thermocontrol Heater 50W 23cm (25-60L)

With the EHEIM JGER precision heater your fish receive exactly the right temperature in any aquarium.

Obvious ideas often are the best ones. For example, the aquarium heater as a rod. The heating rod is simply hung in the water and heats it. It is true that the principle is still the same as decades ago. But a lot has changed in the meantime. And today the EHEIM adjustable heater is an ultra-modern electronic thermal device with the best available technology. A jacket made from special laboratory glass increases the heating surface, serves as a heat shield and ensures optimum even heat emission. And no matter if you want to heat a 20 or a 1000 litre aquarium you have 7 sizes to choose from.

Benefits of the EHEIM JGER thermostatic heaters

• Precise temperature adjustment from 18 up to 34 C
• Simple and safe recalibration (2 C)
• Temperature control accuracy 0,5 C
• Heat kept at a constant level
• Heating function is indicated by a control lamp
• Completely submersible (watertight)
• With automatic dry run shut-off (Thermo Safety Control)
• A glass jacket increases the heating surface and ensures optimum even heat emission
• Handy cable length ca. 170 cm
• Including double suction cup holder
• 9 sizes for aquariums from 20 up to 1000 litres
• Suitable for fresh and salt water

Installation Instructions:

• Check device for damage.
• Remove transit protection.
• Fix suction cups to double suction cup holder and clip onto heater (not near the heating spiral).
• Mount thermostatic heater with double suction cup holder vertically in the aquarium, fixing it in a place where water flow is brisk (filter outlets/vents).
• Set temperature.
• Plug into electrical outlet.

Setting temperature

• Turn the temperature selector ring to the desired temperature.
• Monitor the aquarium water temperature using an accurate thermometer for at least 24 hours and make any necessary adjustments to compensate for calibration errors.
• You should periodically monitor your aquarium water temperature with an accurate thermometer (Red light = heater in operation).

Note: The temperature selector ring should only be used as a guide. Always use an accurate thermometer for water temperature measurement.

Recalibration

If, after a day or two in operation the setting scale does not correspond to the water temperature, refer to the following procedure to recalibrate the heater:

• Switch off the heater and unplug it from the electrical outlet.
• Measure the water temperature with an accurate thermometer.
• Turn indicator arrow (red) point to the measured temperature.
• Set the desired tank temperature with the temperature selector ring (blue).