Lifegard Aquatics Big Digital Temp Alert Aquarium Thermometer Black

Lifegard digital thermometers are used for aquariums, reptiles or greenhouses. The Big Digital Temp Alert has 4 Alert features (Alarm will sound & LED flashes): High Temp Alert Only (Probe); Both High & Low Temp Alert Only (Air/Room); Low Temp Alert Only (Probe); and Both High & Low Temp Alert Only (Probe).