Pressure and Temperature recorders can be any configuration of up to 2 pens of either pressure and / or temperature. So it can be a two pen pressure recorder for multi-range pressure measurement, a mix of pressure and temperature, or two pen temperature. Standard temperature element is an enclosed and sealed liquid filled system with 15 foot long armored capillary that is case compensated. Standard window is lexan. Case and door is die cast aluminum with epoxy powder coat. Case/door are NEMA 4 weather proof seal.