Water Heater Fish Tank Adjustable 25/50/100/200/300 Pretty Aquarium Submersible water heater: Easy to use, Safe,Precise. Fully submersible heaters work in any position (horizontal or vertical) to provide optimum aquarium water temperature. Safe and reliable in both fresh and salt water aquariums! Temperature range between 65F and 93F. Sensitive and reliable thermostat maintains uniform temperature Includes two suction cups for mounting Automatic shut off when the temperature is reached. Shatterproof glass Plastic cover protector (removable) Specification: Voltage: 220~240 50-60Hz Diameter: 0.875 inch Length of power cord: 2.9 feet Power	Length	Recommended Tank Size 25W	13.6.cm / 5.4inch	5 to 8 gallon 50W	15.5cm / 6.1inch	10 to 16 gallon 100W	18.3cm / 7.2inch	20 to 33 gallon 200W	23.4cm / 9.2inch	40 to 66 gallon 300W	32cm / 12.6inch	60 to 100 gallon Specifications: Temperature measurement range: -50 degree~ + 70 degree Usage temperature: -10 degree ~ +50 degree Usage humidity: 5%2525 ~ 80%2525 Accuracy:-/+ 1 degree Distinguishing temperature: 0.1 degree Unit dimensions: 4.8 x 2.8 x 1.5cm Cable length: ~100cm Power: 2 x LR44 button cell batteries PACKAGE INCLUDES: 1 x Digital Thermometersbattery include Digital LCD Thermometer B: Modeling simple, elegant, LCD panels inline connections, moisture-resistant, strong anti-interference, applies to refrigerated cabinets, display counters and other needs of temperature measurement and display of various equipment. Technical parameters: Temperature range: -50~ +110C Temperature display resolution: 0.1 Temperature measurement accuracy: 1C Power: two LR44 button battery-powered (include) Long probe line: 79CM molded case probe Colour: black Size: 47*27*15mm Weight 22g Package Included: 1 X Digital LCD Thermometer(Not AU plug) Not Retail Box .Packed Safety in Bubble Bag