DC-9101E Conventional Combination Heat Photoelectric Smoke Detector, non-addressable, is a kind of combination detector consisting of smoke sensing parts and semi-conductor heat sensing parts in technological structure and circuit structure. Together with DP-9907, it can connect to conventional fire alarm control panel or connect with intelligent fire alarm control panel through I-9319 Addressable Zone Monitor Unit conduct the processing of detector signals. The detector has the advantages of both conventional photoelectric detector and rate of rise and fixed temperature heat detector. Just because of the combination of smoke detector and heat detector, it overcomes the non-sensitivity to dark smoke particles of ordinary scattering photoelectric detectors. It can also pick up fire with obvious rise of temperature such as alcohol flame, thus extending the application range.