Greenhouse Temperature Alarms

Written by danielle henley
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Greenhouse Temperature Alarms
Use the right temperature alarm for your greenhouse. ( Images)

Safeguard your valuable greenhouse plants by ensuring they survive accidental changes in temperature and humidity. Power outages, heating or cooling equipment failures and unseasonable hot or cold snaps can destroy the fruits of your hard work and threaten your livelihood. Greenhouse temperature alarms are digital gadgets designed to alert you any time temperatures rise above or fall below safe, preset parameters.

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How an Alarm Works

Greenhouse alarms are designed to alert you when the temperature falls or rises below or above your safety settings. Wired systems rely on physical cable connections to provide alerts. Wireless temperature monitors use remote sensors and transmitters to measure and send you data about the temperature of your greenhouse. Operational distances for wireless greenhouse temperature alarms vary between a 1300 and 3000 foot radius. In both cases, the controlling unit displays LED temperature readings. Any variation above or below your settings automatically triggers an alert. You are notified of the alert by audible alarms, warning lights, telephone calls or SMS texts.

Greenhouse Alarm Tips

Greenhouse temperature alarms can alert you to problems with your heating and cooling system's thermostats, which become less reliable as they age. They can also help reduce bills for maintaining the optimum temperature in your greenhouse, since a faulty thermostat can cause expensive extra usage of electricity, gas or coal. Always keep a fully-charged spare battery on hand for your greenhouse temperature alarm, to ensure power outages do not prevent you from receiving emergency alerts. Temperature sensors must accurately represent what your plants experience. Position them within the trays of plants, at the same height, for the most precise readings.

Essential Features

Essential features of greenhouse temperature alarms vary from gardener to gardener. They depend on the degree of investment of your time and money and on whether the crops or plants contribute to your income. One must-have feature is the option to use a backup battery. This powers the device when your main electricity is switched off or fails. An alert indicating electrical power supply failure is another essential feature, unless you heat or cool your greenhouse solely by gas or other power sources. It's always possible that an electrical power failure can affect your greenhouse but not your nearby house or office. Alarms that call your telephone or send you an SMS text to warn you of temperature changes alert you to emergencies occurring when you are away from home.

Optional Extras

Optional extras, such as data logging and remote monitoring, are useful features if you plan to use the gathered information to analyse the performance of your heating and cooling systems. Intrusion alarms offer you an early warning that temperature and humidity levels in your greenhouse may soon change. This is because doors and windows can accidentally be left open and heating or cooling system settings can be changed by unskilled persons. Some advanced greenhouse alarm models monitor multiple locations in your greenhouse and include computer software that displays temperature data in a graph form on a nearby or remote computer. Others offer fully customised alerts and data reports on demand, which are sent to telephones, pagers, fax machines or e-mail addresses.

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