The programmable mechanical timer makes your life smarter and more convenient. The IP53 rating extends the range of work environments. Easy to use, easy to install. Functions: Mechanical timer: large dial with clear scale, turn the dial clockwise to set the time; the drive method is quartz motor. Ease of use: 24-hour timer, with manual switch, supports schedule timing (automatic on/off according to schedule) and permanent on/off. Built-in battery for backup. Easy installation: With mounting holes, the timer is intended to be embedded in built-in equipment/control box etc. Compact size and light weight make installation easy. High quality: 150C heat resistant ABS housing, durable and corrosion resistant; Supports IP53 protection level, withstands harsh environments. WIDE APPLICATION: For street lighting, ventilation, fountains, signs, production equipment, broadcast and television equipment and more. Transparent cover: dustproof and waterproof, extend the service life. The transparent design has no effect on the display of the dial. Note: 1. Installation should only be performed by a qualified electrician. 2. Read the user manual carefully before use. 3. Size and color may be slightly different due to manual measurement and different lighting conditions. Thank you for your understanding. Specifications: Color: Gray Material: ABS Voltage: AC 100-240V Frequency: 50-60Hz Battery: 1.2V 40mAh NI-MH battery Contact capacity: 20A Power: 2W Time interval: 24H Minimum interval: 15min Setting time: 15min/time, 96 times Power : 300H IP Rating: IP53 Item Size: 163 * 113 * 45mm / 6.42 * 4.45 * 1.77in Package Size: 16.5 * 12 * 4.5cm / 6.50 * 4.72 * 1.709in Package Weight: 1.709in. 0 oz. Package List: 1 * Timer Switch 1 * Battery with Line 3 * Screws 1 * User Manual (English)