Burglar Alarm using 555 Timer & LDR with Power Supply (C.R.) Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12297
Indian Lab Suppliers supplies the Burglar Alarm using 555 Timer & LDR with Power Supply (C.R.) (Product ID: 12297) as part of its electronics engineering lab equipment range. It is a light-operated burglar alarm built from a 555 timer and a light-dependent resistor.
Quick Answer
The LDR on the panel senses light; when the light falling on it is cut off its resistance rises, which enables the 555 timer running as an astable multivibrator, and the alarm tone sounds through an 8 Ω speaker. Students trace the sensing and oscillator stages and observe waveforms at the test points. The board has an internal 12 V DC, 1 A IC-regulated supply and needs no other apparatus.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiment | Burglar alarm using a 555 timer and LDR |
| Sensor | Light-dependent resistor (LDR), panel mounted |
| Timer | 555, astable multivibrator |
| Output | 8 Ω speaker |
| Supply | 12 V DC at 1 A, IC regulated, internal |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and indicator lamp |
| Other apparatus | None required |
Where This Is Used
Used in sensor and timer-IC application practicals. Related: Electronic Siren using Timer ICs with Power Supply (C.R.) (Product ID: 12295) and Photo Transistor Trainer with Power Supply (C.R.) (Product ID: 12287). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What triggers the alarm?
A drop in light on the LDR.
In which mode does the 555 run?
As an astable multivibrator producing the tone.
Is anything else needed?
No, the supply, LDR and speaker are built in.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
Request a Quote
For pricing, bulk quantities or tender documentation on the Burglar Alarm using 555 Timer & LDR with Power Supply (C.R.), reach our team via Contact Us or submit your requirement through our Tenders page.
.jpg)
.png)
.png)
.jpg)
.jpeg)