Dirancang khusus untuk mengatasi masalah bintik karat dipermukaan bodi kunci. Mampu menjaga permukaan selalu seperti baru setidaknya selama 8 tahun.
| Series | VT(VM) 1890S |
| Unlock Mode | Card & Mechanical Key |
| Card & Type | RFID Card (VT) & Mifare Card (VM) |
| Body Material & Color | Stainless in Silver |
| Mortise Material | Stainless |
| Bolt of Mortise | Latch Bolt & Dead Bolt |
| Mechanical Key | 2pcs |
| Dimension | 300mm x 76mm x 13mm |
| Thickness of a door | >34mm |
| Frame of the door | >98mm |
| Battery | 4pcs AA |
| Low Battery Warning | YES |
| Application | Hotel, Kost-Kostan, Guest House |