A fire alarm system is number of devices working together to detect and warn people through visual and audio appliances when smoke, fire, carbon monoxide or other emergencies are present. These alarms may be activated from smoke detectors, and heat detectors. Alarms can be either motorized bells or wall mountable sounders or horns. They can also be speaker strobes which sound an alarm, followed by a voice evacuation message which warns people inside the building not to use the elevators. They may also be activated via manual fire alarm activati ....etc

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SHRIDHAN manufactures products that are customized to the need of the customer. Different products have different dimensions, length and physical features. ....etc

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if you again feel trouble on water level controller please ....etc

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This is a circuit sound alarm when an engine start spreading the heat. Although every car will have a temperature gauge. But in some cars. May be no warning if the engine is overloaded with heat. Or the driver may not have noticed the temperature gauge can cause problems.

The circuit in figure 1 When the temperature of the engine increases. The resistance of the thermistor decreases. Thermistor is connected to R1 for divide the voltage of the power supply to pin 2 of an op-amp IC1-LM741. This voltage will decrease as the temperature rises, by ....etc

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advantages and disadvantages of water level alarm..plz tell me.. ....etc

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advantages disadvantages battery level indicator ....etc

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source code of smoke alcohole lpg detection alaram

GAS LEAKAGE DETECTION & AUTO ON-OFF GAS SYSTEM
This system helps you to upgrade your safety standards, comply statutory requirements on environmental commitments and most important and basic function being prevent accidents and protect life and property from disaster. In the past, it has been a conventional practice to employ combustion apparatus such as a furnace,
heater, stove or LPG kit in cars, which utilizes a combustible vapor or gas to produce heat energy when properly ignited. In the u ....etc

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Having a water alarm installed in your home can potentially save you thousands of dollars in repairs. Water alarms have many benefits. Since they are relatively inexpensive, it's a good idea for any homeowner to install one, even if it's just a simple passive system. Here are a few of the advantages of having a water alarm in your home.

1. Mold and Mildew

It's not uncommon to find minor mold and mildew problems in high moisture areas. Bathrooms, kitchens and laundry rooms are all susceptible. Mold can lead to health problems, and mildew can c ....etc

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What are the advantages and disadvantages of water level indicator? ....etc

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advantages for water level alaram
Introduction
Today I am going to talk about a very useful project that I had taken up. It is called the Water Level Indicator. Nowadays everybody has overhead tank at their homes. But everyone who has a water tank above knows the kind of problems that they face. Firstly there is no system to track the water in the tank. Then there come a secondary problem that is when their water pump is started they have no idea when it gets filled up and sometimes there are situation where the pump keeps on pumping water to t ....etc

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