Submersible aquarium heater for turtles, with temperature display and external temperature controller

【Application】Suitable for freshwater and saltwater aquariums, betta fish, frogs, newts, turtles, aquaculture, glass containers, and hydroponic systems. 【Intelligent Temperature Control】: Automatic constant temperature function: when the water temperature reaches the specified value, the heater automatically shuts off (LED off); when it falls below the target temperature, the heater automatically restarts (LED on). 【Helpful Tips】This heater is fully submersible, made of impact-resistant quartz glass, and features an automatic safety shut-off to prevent overheating. 【EASY INSTALLATION】Ensure the thermometer is fully submerged for a few minutes. The thermostat is adjustable from 59 to 95°F (15 to 35°C). Simply press the adjustment button to select the desired temperature; the unit will then turn on. Place the heating rod in the water outlet and fully submerge it. 【Easy to Use】You can adjust the temperature using the control knob. Made of 2mm thick quartz glass, suitable for both freshwater and saltwater aquariums.