The Acclimate 2251TMB photoelectric detector from System Sensor includes thermal detection at 135°F. It uses advanced onboard software to combine the signals from the photo and thermal elements to create a true multi-criteria detector capable of rejecting nuisance sources, but still responding quickly to real fires. The Acclimate detector can also adjust its sensitivity according to its environment. Using advanced software, Acclimate continuously samples the air in the environment and adjusts its detection parameters and alarm threshold accordingly. It does this automatically without user intervention. There’s no need for an installer to set sensitivity levels at the control panel – Acclimate makes the educated decisions. In fact, Acclimate has proven its effectiveness and reliability in over one million installations.