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CL0290 Back To Back Marine By Codelocks Digital Lock


The CL0290 MB Back To Back Digital Lock from the Marine by Codelocks 200 series is a premium digital lock suitable for internal or external use. It is supplied with 2 keypads to provide coded access in both directions and an anti-slip mortice latch. The correct entry of a code from either side will allow the latch to be retracted. The spring loaded anti-slip latchbolt will lock automatically when the door is closed.

It has been salt spray tested to 1,000 hours and comes complete with neoprene seals, ensuring it can withstand harsh outdoor environments and even coastal applications. The lock has a black finish with stainless steel buttons and is designed to suit doors with a thickness of 35mm to 60mm. There are up to 8,191 non sequential code combinations available and it features tumbler alignment for easy code change. Codelocks Fire Kit Packs can be fitted to latch locks for 30 or 60 minute fire doors (tested in accordance with BS EN 1634 1:2008).

Clean by Codelocks is an optional finish available to special order on many Codelock products. The clear coating combats SARS-CoV-2 coronavirus (COVID-19) and can reduce bacterial growth by 99.96%*, providing an additional measure of protection over sanitisation. Clean by Codelocks features an ISO certified photocatalytic coating which offers enhanced protection against viruses, bacteria, germs and other environmental toxins. For full details please view the data sheet in the associated documents or to order please contact our Specials Department.


  • Salt spray tested 1000 hours
  • Marine by Codelocks with neoprene seals included
  • 8,191 non sequential combinations
  • Flat spring loaded spindle
  • Suitable for internal or external use

Availability: Out of stock


  • Height: 141mm
  • Width: 41mm
  • Weight: 1.34Kg
  • Door Thickness: 35mm to 65mm
  • Finish: Black
  • Guarantee: Limited Lifetime
  • Handed: Reversible
  • Hold Back:
  • Key Override: No
  • Pack Quantity: 1
  • Packaging: Boxed
  • Weather Resistant: 1
  • Manufacturer Reference: CL0290