| first home security system creator | 1.47 | 1 | 5987 | 34 | 1 |
| who made the first home security system | 1.59 | 0.8 | 8116 | 39 | 46 |
| who invented the first home security system | 1.92 | 0.1 | 4438 | 43 | 79 |
| the first home security system | 0.05 | 0.1 | 8214 | 30 | 45 |
| who created home security system | 1.4 | 0.5 | 8387 | 32 | 60 |
| inventor of the home security system | 1.54 | 0.9 | 8493 | 36 | 10 |
| picture of the first home security system | 1.82 | 0.1 | 1695 | 41 | 9 |
| who invented home security | 0.99 | 0.1 | 5054 | 26 | 51 |
| when was the home security system invented | 0.88 | 0.7 | 4567 | 42 | 21 |
| home security system invention | 0.01 | 0.2 | 7652 | 30 | 79 |
