| Touch activated alarm v2 |
Activates alarm when someone comes close to the device. |
2.96 |
3,343 |
| Knock-knock alarm |
Alarm, more of a sensor, that activates on door knocking sound. |
2.95 |
3,367 |
| Electronic lock |
Electronic lock with 4022 octal counter. |
2.93 |
3,933 |
| SMS alarm - by Pance |
SMS Alarm witn GSM phone Ericsson T10. |
2.93 |
7,033 |
| Digital combination lock |
Digital combination lock with two 14013 ICs. |
2.92 |
4,947 |
| Electronic combination lock with PIC microcontroller |
Electronic combination lock with PIC microcontroller and 4 access codes. |
2.92 |
4,840 |
| Fire sensor |
Sensor that detects fire, hopefully not too late. |
2.92 |
3,344 |
| Card lock for cars |
Electronic Card Lock system for you vehicle. |
2.92 |
6,057 |
| Double sensor |
Senzor activated by light and vibrations. |
2.92 |
3,104 |
| Alarm with 4 sensors |
Very simple alarm with NE556 and 4 sensors. |
2.91 |
7,245 |
| Touch activated alarm v1 |
Activates alarm (buzzer) when someone comes close to the device. |
2.91 |
9,627 |
| Wireless car alarm |
A very simple wireless car alarm device. |
2.90 |
10,710 |
| Ultrasonic sensor v3 |
Detects motion with ultrasound. |
2.90 |
2,232 |
| Ultrasonic sensor v2 |
Detects motion based on ultrasonic sound. |
2.90 |
2,628 |
| Light activated alarm |
Turns alarm (buzzer) ON, when light hits the sensor. |
2.89 |
4,253 |
