Features: 1Multifunctional: This mini temperature controller is an excellent and convenient multifunctional temperature control device in the aquarium. 2Provide Optimum Temperature: By using the temperature controller, you can provide an optimal temperature environment for your fish, the stability of the aquarium temperature is one of the key factors to ensure the health and safety of fish. 3Measuring Range: This advanced temperature controller can measure and control the temperature from ?50 to 99C, this equipment is also suitable for laboratory use and other temperature control systems. 4Digital Display: This temperature controller uses digital display, small size, light weight design, large LCD display, clear temperature range. 5Scope of Application: This temperature controller switch is applicable to aquarium, glass container, animal farm, breeding box, chicken box. Package included: 1 x Temperature Controller&nbsp 1 x Instruction