RTT Devious Decoder Card - Australian Version

The RTT Devious Decoder Card (DDC) — Australian Version — is a compact, dual-purpose measuring tool that lets locksmiths, technicians, and security professionals quickly read both key bitting and individual pin sizes from a single wallet-sized gauge. Designed specifically for common Australian key systems, this durable card speeds field decoding and pin checks without the need for bulky calipers or multiple gauges.

Key Details

• Dual-function stair-step cutouts: Unique stepped apertures accept both key blades and individual pins, enabling quick measurement of bitting depths and pin/master pin lengths from one tool.

• Australian compatibility: Calibration and apertures tailored for Lockwood, Gainsborough, and Yale key families commonly used in Australia.

• Pocket-ready format: ISO/IEC 7810 identification card size (3⅜" × 2⅛") fits a wallet, badge holder, or tool pouch for effortless carry.

• Durable construction: Made from robust thermoset resin plastic with all apertures lined in a non-ferrous metallic coating to resist wear while avoiding any magnetic signature.

• Field-oriented design: Fast to use after impressioning or picking; supports on-site decoding, pin inventory, and master-pin checks without heavy instruments.

Technical Specifications

• Size: ISO/IEC 7810 ID card — 3⅜" × 2⅛" (approx.)

• Material: Thermoset resin plastic body with non-ferrous, wear-resistant aperture lining

• Compatibility: Lockwood, Gainsborough, Yale key/pin systems (Australian profiles)

• Functions: Key bitting gauge, pin/master pin gauge, compact reference legends etched on card

• Carry: Wallet / badge / tool pouch friendly