Benefits of the EHEIM JÄGER 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 Suitable for fresh and salt water