Guardian Telecom DTT-20-H Hazardous Area Desk Phone Features: One piece, waterproof tissue layer papan ketik and attractive reed hook-switch for prolonged life Robust mobile phone and cord Exemplified routine forums are resistant to water, exotic moisture and my own condensation Service heat range from -40C to +60C (-40F to +140F) Kydex 100 plastic faceplate is 94V-0 fire slowing, resilient, impact-resistant and easy to clean Folding the base allows the desk-top telephone to be wall mounted Electret disturbance decreasing microphone Amount modification and muting Ten-number memory, redial and recall Order # P6800