Aqua One Electronic Thermometer ST3

This Aqua One Electronic Thermometer ST3 is large and has an easy to read LCD display with operating temperature of -10°C to 50°C (battery included).   This thermometer is plain and simple but accurate and easy to read. 

It is hard to beat the Aqua One Electronic Thermometer ST3 for value and quality because it is an accurate instrument, easily fitted to the sides of tanks, with sensitive sensors to monitor internal conditions and a clear LCD display for easy reading.


Place sticky tape around both sides of the battery and dispose of it immediately in an outside bin, out of reach of children, or recycle safely.

FeaturesOperating Instructions
1. Temperature: -10°C – +50°C
2. Accuracy +/-1°C
3. LCD digital display
4. °C and °F display
5. Water resistant probe
6. High quality silicone suction cups
7. Suits cold water & tropical
1. Press the FSW button to turn on. Press and hold for 3 seconds to turn off.
2. Using the suction cup provided. Attach the display unit to the outside of the aquarium.
3. Submerge the probe into the water in the aquarium.
4. Do not submerge the display unit. Only the probe is water resistant.
5. To switch between Celsius and Fahrenheit, slide the °C/°F switch.