Aqua One Easy Read LCD Thermometer - Digital Water Temperature Gauge for Aquariums, Fish Tanks & Pools | Accurate & Fast Reading for Home & Professional Use

• Temperature range: 0°C - +37°C (+32°F - +99°F)
• 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.