• Aqua One Electronic Thermometer ST3
SKU: AOElecThermoST3

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.  Its hard to beat this instrument 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.


Operating Temperature: -10°C – +50°C
Accuracy +/-1°C
LCD digital display
°C and °F display
Water resistant probe
High-quality silicone suction cups for easy attachment
Suitable For: Coldwater, Tropical & Marine

Operating Instructions

  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.


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.

Size guide


SKU: AOElecThermoST3 Categories: ,