Fluval T200 Heater

The Fluval T Series T200 is a fully electronic, submersible aquarium heater with advanced features for accurate temperature control and enhanced safety. It is designed for use in both freshwater and saltwater aquariums up to 200 liters (approximately 65 US gallons). 
Features and specifications.

Electronic thermostat: Advanced electronic sensors provide superior accuracy and help maintain a consistent water temperature with minimal fluctuation.

Capacity: 200 watts of power are ideal for aquariums up to 200 L or 65 US gallons.
Visual heating indicator: A 360° light ring at the top of the unit clearly displays the heater's status from any angle.

Blue light: Indicates the heater is in standby mode.

Red light: Indicates the heater is actively heating the water.

Temperature control: A large-grip dial allows for easy manual adjustment of the temperature. The temperature range is 22–32°C (72–90°F).

Safety features:
Auto shut-off: The heater has an integrated shut-off feature that automatically cuts power if the water level is too low, preventing it from overheating.
Protective guard: A durable heater guard protects the glass against breakage and also prevents accidental contact.
Installation and positioning: The T200 is fully submersible and can be mounted vertically or horizontally inside the aquarium with the included suction cups and brackets.
Dimensions: Approximately 32 cm (12.5 inches) long, according to Fluval Aquatics