LH - DGLS02L (40mm - 60mm). Weather resistant and salt spray tested to marine grade, the Gatemaster Single Sided Digital Gate Lock is designed for durability. With digital locking there are no keys required, and this product features auto latching and deadlocking functions, as well as being supplied with a brass bearing plate intended to support the deadbolt. Please ensure you choose the correct product to suit the gate frame size. DGLS01 - To Suit 10mm - 30mm gate framesDGLS02 - To Suit 40mm - 60mm gate frames. Auto Latching. Keypad on one side only. Marine Grade & Weather Resistant. Designed to be bolted in place