Aqua One Digital Thermometer – Stick On Temperature range: 0C – +37C (+32F – +99F) Adjustable temperature alarm Provides accurate temperature monitoring from the exterior of a glass aquarium Alarm indicator briefly sounds and continuously flashes when the aquarium reaches a range outside the set parameters Securely mounts on the exterior of a glass aquarium Setting the temperature alarm thresholds To set the temperature alarm, hold the SET button for 2 seconds. When SET Hi. appears, use the +/- buttons to set the high range, then press SET. When SET Lo. appears, use the +/- buttons to set the high range, then press SET to confirm. The alarm will sound, and the LED will flash when the High or Low temperature is exceeded. Pressing any button will silence the alarm. If the temperature is still outside the set range, the alarm will sound again in 1 hour. Warnings WARNING KEEP BATTERIES OUT OF REACH OF CHILDREN Keep button batteries out of reach of children. Never allow children to replace button batteries in any device. If swallowed, a button battery can cause severe or fatal injuries. If you think batteries may have been swallowed or placed inside any part of the body, seek immediate medical attention. The Australian Poisons Information Centre can be contacted 24/7 on 13 11 26. Dispose of used button/coin batteries immediately. SAFE DISPOSAL BUTTON/COIN BATTERIES 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.