Aquarium Thermometer Submersible, Digital Fish Tank Thermometers with USB for GlassTank, Aquariums Temperature Gauge ±1℉ Accurate, Suitable for Fish, Turtle, Saltwater or Freshwater, 6.56ft Power Cord

Customizable Timer Display: Features both a 24/7 Always-On mode and a Custom Timer mode, allowing for one-touch switching to suit your needs. With adjustable screen brightness for optimal visibility day and night

Aquarium Thermometer Calibrated: This aquarium thermometer features a built-in calibration function, allowing you to fine-tune temperature readings for maximum accuracy. This proactive feature eliminates uncertainty and provides a perfectly stable and healthy environment for your fish

High-Accuracy Monitoring: This aquarium thermometer is equipped with a precision electronic chip and can be placed directly in water. Its probe makes direct contact with water, ensuring highly responsive and precise measurements

Designed for aquarium use, this thermometer operates at an ultra-low 5V voltage. Its fully enclosed internal circuit board is constructed with embedded potting technology for enhanced insulation and superior waterproof performance

This aquarium thermometer needs to be plugged in for power and comes with a 6.56ft/2m USB cable. Includes three strong suction cups that allow you to achieve custom positioning within the aquarium according to your needs

Suitable for both freshwater and saltwater environments. With compact dimensions of 1.96 × 1.96 × 0.98 inches, its mini design minimizes space usage in aquariums. The measurable water temperature range is 32°F to 122°F