🎁 Free Proximity Dot with any smart lock. Add a Proximity Dot to your order and it’s free at checkout. 🔔 Currently being restocked. Place your order now to reserve from the next shipment. We'll email you the ETA and ship as soon as stock lands. Questions? Email [email protected]. The KS300 is our slimline smart lock - engineered for the narrow stiles found on french doors, aluminium joinery and sliding doors. A 303 × 43 mm panel squeezes into spaces no standard smart lock can reach, with the full TTLock feature set behind it. Managed through the TTLock app, the KS300 brings keypad, RFID card, Bluetooth app, proximity unlock and a mechanical key backup to doors that previously couldn't fit a smart entry system. The slim profile pairs cleanly with both aluminium and timber construction. Built for NZ conditions. IP65 dust- and water-resistant for full exterior exposure on covered or uncovered entries. Backed by a 2-year manufacturer warranty.* Key features Choose your backset: The KS300 supports a wider range of mortice backsets than any other lock in the range - 30 mm to 60 mm for standard hinged doors, plus dedicated sliding-door options at 28, 35 and 45 mm. Select "Handle Only" if you already have a compatible mortice in place. Slimline profile, fits narrow stile doors that standard smart locks can't TTLock app (iOS & Android) passcode sharing, eKeys, access logs, remote management Hidden mechanical key cylinder for emergency override Material: Aluminium alloy (Black) or 304 stainless steel (Brushed Nickel) IP65 dust- and water-resistant, built for NZ conditions Powered by 4 × AAA batteries (8,000–10,000 unlocks / 8–12 months) Bluetooth 5.0; Wi-Fi gateway compatible 2-year manufacturer warranty* Specifications Unlocking methods: Bluetooth App, RFID Card, Proximity Dot, PIN code, Key App: TTLock (iOS + Android) Material: Aluminium Alloy / 304 Stainless Steel Colour: Black or Brushed Nickel Panel size: 303mm (L) x 43mm (W) - slimline profile for narrow aluminium stiles Backset options: 0mm, 30mm, 35mm, 40mm, 45mm, 50mm, 60mm; Sliding 28mm, 35mm, 45mm Communication: Bluetooth 5.0 or above Supported systems: Android 4.4+, iOS 7.0+ Operating temperature: -10°C to +50°C Operating humidity: 10% to 95% Power: DC6V, 4x AAA alkaline batteries (Duracell Industrial recommended) Battery life: 8,000-10,000 unlock operations (8-12 months) IP rating: IP65 Wi-Fi gateway: Compatible (sold separately for remote access) Five ways to unlock: Bluetooth app, RFID card, proximity dot, PIN code or physical key Finish: Matte black or brushed nickel Installation Confirm your door type (standard hinged or sliding) and existing backset Choose your backset at checkout. We'll ship the matched KSE85 mortice case with the lock Existing mortice pocket may need minor adjustment Pair with the TTLock app in under 5 minutes after install Not sure of your backset? It’s the distance from the edge of the door to the centre of the lock cylinder. Measure yours before choosing, or contact us and we’ll help you spec it. *Warranty applies to the lock mechanism and electronics. Batteries excluded.