Edwards Signaling 721UT smoke detector with heat sensor

• Make: Edwards Signaling
• Model code: 721UT
• Type: Smoke

Edwards Signaling 721UT is a photoelectric smoke detector that includes integral fixed temperature heat sensors. It is an interchangeable head and base detector with a light-scattering optical sensor. A pulsed infrared LED light source and a high-speed photodiodesensing element are housed in an omni-directional sensing chamber protected by an insect screen. The chamber is not affected by ambient light. The detector features a field-replaceable optical chamber to simplify cleaning. It is suitable for use in commercial and industrial environments.