Thermostats on off in comparison

Durable

Color Black

Grounded 3-prob plug measure an extended 6 feet in length, designed to suit almost any application you can imagine.

High-precision temperature control system - Keep your aquarium at exactly the right temperature with this high performing, precise and reliable heater. Ideal for Tropical and Marine fish tanks

Timing Function Thermostat Timer socket has F01-F04 mode, F01 cycle time control mode, F02 countdown on mode, F03 countdown off mode and F04 countdown on, countdown off mode, Time range is 0-99 hours and 59 minutes.

3L - Larger size water tank Machine size 7.5 x 7.5 x 12.6 inch , include an adjustable (1.3-6.3feet) length hose and two suction feet for securing the hose. Perfect for a wide variety of reptiles and amphibians, such as lizard, turtle, python etc.

Rapid Heating and Two Temperature Control System 100W aquarium heater is sutable for 50L-150 Litres water fish tank and made of the most stable nickel-chromium heating wire, which can quickly and stably conduct heat to the surroundings. It has a built-in temperature control system of Fahrenheit and Celsius(Temp range 17-34 63-94 ). You can press and hold the button next to the controller for 3-5 seconds to switch.

Ideal for small, shallow tanks - the ultra-thin flat mini tank heater measures 4.3'' x 1.8'' x 0.9'', saving quiet space and easy to hide behind filters wood rocks, mounted with Two powerful suckers. Due to its flat design, it can be placed vertically or horizontally on a gravel-free aquarium bottom to heat a turtle tank with low water levels.

Easy to Use And Program Accurate reading temperature for LCD display with back light. Freely switch between and .

Efficient heating Featuring explosion-proof quartz glass heating material, this 300W aquarium heater offers high heating efficiency and a long service life, while also being anti-impact for added durability.

Dual Relay Output First socket is for heat cool output; Second socket is for the timer output. Please note that it is only a heating controller without cooling function. Temperature control range 0 50 . Maximum heating output 440W. Maximum timer output resistive load 1100W; inductive load 275W; Incandescent lamps 220W.

Dual Relay Output - Digital dimming thermostat & day - night timer, one output for PID controlled heating, the other output for timer control. Integrated design with day night temperature and timing control, which can meet the physiological needs of temperature, and lighting for reptiles, amphibians, or plants