i want the circuit diag for water level overflow indicato.plz help ....etc

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Many fire alarm circuits are presented here,but this time a new circuit using a thermistor and a timer to do the trick. The circuit is as simple and straight forward so that, it can be easily implemented. The thermistor offers a low resistance at high temperature and high resistance at low temperature. This phenomenon is employed here for sensing the fire.

The IC1 (NE555) is configured as a free running oscillator at audio frequency. The transistors T1 and T2 drive IC1. The output (pin 3) of IC1 is couples to base of transistor T3 (SL100), w ....etc

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A panic alarm is an electronic device designed to assist in alerting somebody in emergency situations where a threat to persons or property exists.

A panic alarm is frequently but not always controlled by a concealed panic alarm button. These buttons can be connected to a monitoring center or locally via a silent alarm or an audible bell/siren. The alarm can be used to request emergency assistance from local security, police or emergency services. Some systems can also activate closed-circuit television to record or assess the event.

M ....etc

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To get full information or details of mobile location alarm please have a look on the pages

http://seminarsprojects.net/Thread-project-report-on-location-based-alarm-using-gps-in-android?pid=80783

if you again feel trouble on mobile location alarm please reply in that page and ask specific fields in mobile location alarm ....etc

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panic alarm

A panic alarm is an electronic device designed to assist in alerting somebody in emergency situations where a threat to persons or property exists.
A panic alarm is frequently but not always controlled by a concealed panic alarm button. These buttons can be connected to a monitoring center or locally via a silent alarm or an audible bell/siren. The alarm can be used to request emergency assistance from local security, police or emergency services. Some systems can also activate closed-circuit television to record or assess the e ....etc

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project about tank water level indicator with overflow alarm circuit ppt in to the right box for getting free material and support from us/dedicated premium members.. ....etc

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i want to do project on anti theft petrol alarm for bike so please send me a valuable suggestion ....etc

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i want ppt for shadow alaram..as this is my final yr project..kindly provide it to me..plz ....etc

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simple touch alarm circuit using ic 555 ppt

Touch the sensor of the alarm with your finger and it starts beeping, goes on for some time and then stops. Touching it again, and it goes again! This little and flexible circuit consists of a touch sensor and a directly coupled transistor amplifier with a small loudspeaker as the output load. Two sensor strips of metal are mounted side by side on a 1 1 cm size micasheet and connected to the input of the circuit.

How the touch alarm works

Under normal conditions no current flows through switching ....etc

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I want slides on fuse blown detector with remote alarm.please it's urgent
....etc

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