This Digital Aquarium Thermometer from Papillon measures the water temperature in your aquarium in seconds. The thermometer measures the temperature from outside & can be easily attached to the aquarium using Velcro fasteners. A thermometer is an essential part of owning an equipment. Plants & aquatic life can only flourish in your aquarium when the water temperature is correct. This Digital Aquarium Thermometer is suitable for both fresh & salt water aquariums, showing the temperature of the water to the nearest decimal point. The battery-operated temperature gauge can be attached to the outside of the aquarium with a Velcro fastener. It does not come into contact with the water, so water leaking inside is not a problem. The temperature is measured wirelessly through the front & the result can be read on the display. The Digital Aquarium Thermometer also means that you can set a minimum & maximum water temperature, with an integrated alarm function to warn you when you are reaching these levels. Digital Aquarium Thermometer at a glance: Digital thermometer for fresh & salt water aquariums Wireless water temperature gauge: allows the temperature to be measured through the aquarium temperature No water contact: mounted on the outside Alarm function: can be individually adjusted to set minimum & maximum temperatures Exact measurement: to the nearest decimal point Easily readable display Easy to assemble: attaches to the outside with a Velcro fastener