Feature: 1. [Good Light Transmittance] Equipped with a high quality shell, has good light transmission performance and good gloss. 2. [Impact Resistance] Made of ABS material, the sound and light alarm is sturdy, durable and impact resistant. 3. [Good Insulation] Using sophisticated production technology, the sound and light alarm has good insulation and long service life. 4. [Low Temperature and Heat Resistance] The sound and light alarm has low temperature resistance and heat resistance. 5. [Wide Coverage] Covering a wide range, suitable for toilets, schools, hospitals, nursing homes and other places. Specification: Item Type: Sound Light Alarm Material: ABS Model: 103 Uses: Suitable for Toilets, Schools, Hospitals, Nursing Homes and Other Places Rated Current: ≤300mA Flashing Frequency: 150 Times/Minute Buzzer Level: ≥110db/30cm. Package List: 1 x Sound Light Alarm 2 x Screws2 x Expansion Tubes