Product: Digital Thermometer Submersible with LCDRange from 0°C to 50°C
- 5 second display reading update
- 1pc 1,5 volt, size Lr 44H Battery included
- Battery life about 5000 hours
- Suction cup included
- Rotate the knob at the back in anti-clockwise direction.
- Install the battery with correct polarity positioning.
- Close the knob tightly by rotating in clockwise direction.
- Peel off display protective sheet.
- Press the suction cup firmly onto the glass inside the aquarium tank with a distance of about 50mm under the water level.
Be sure to close the knob tightly after battery replacement otherwise the waterproof function may be affected.