The EHEIM Jager TruTemp Fully Submersible Aquarium Heater, rated at 200W, is equipped with essential features for maintaining optimal water temperature in both marine and freshwater aquariums. Its thermo safety control ensures protection against running dry by automatically shutting off when out of water, while the shatterproof glass construction guarantees durability. With precise temperature regulation and a TruTemp dial featuring a re-adjustment ring, users can achieve accurate temperature settings tailored to their needs. The heater is fully submersible and waterproof, with an extra-long 5'6" cable for flexible placement. It includes a clamp with two suction cups for secure mounting and is suitable for aquariums up to 106 US gallons. Additionally, an on/off indicator light provides convenient operation.