Photoelectric/optical smoke detector,9V battery operated or DC 12- 32V Conventional Photoelectric Smoke detector/Optical Smoke ... detector/Smoke alarm,9V battery operated or DC 10- 32VMain Feature: Unique Light Labyrinth with High ... easy installationManual test, Auto Reset Function Technical Specification: Input Voltage: DC 9V battery or DC10-32VStatic Current: ≤20uAAlarm Current: ≤15mA ...