Extra cavity in the face plate which allows the 'dead bolt' To be used for extra security
| Make | Clarke Instruments |
|---|---|
| Manufacturer | Clarke Instruments Limited |
| Model code | 9191 |
| Series | 918 Series |
| Electric Release Type | Sashlock Release |
| Fail-Open/ Fail-Secure | Fail-Secure |
| Holding Force kN | 7 |
| Door Material | Timber |
| Additional info | Extra cavity in the face plate which allows the 'dead bolt' To be used for extra security |