Parameters: Product name: high decibel alarm Working mode: honking the horn Sound form: alarm sound, dual audio alarm sound Optional voltage: DC 12V Sound pressure: 120DB Color: white & black Protection level: lp54 Product power: 1w Product size: 52*52*48mm Installation method: wall mounted installation Alarm principle: power on alarm alerts in the form of sound Features: 1.Easy to operate, can be used when powered on 2.Waterproof and dustproof design, able to continue working outdoors on rainy days 3.Adopting high-quality materials and manufacturing processes, it can work normally in various environments 4.High decibel alarm, clear and bright sound, with long transmission distance 5.Wide range of use: Suitable for places outside hospital wards, doorways, farms, ports, construction sites, warehouses, etc Matters needing attention 1.When the voltage used is higher or lower than the rated voltage, it can shorten the product's service life or cause abnormal operation. The voltage used must be controlled within+5% of the rated voltage 2.Users should pay special attention to phenomena such as lampshade or fading 3.Avoid strong impact on the product, otherwise it may cause a series of problems such as product short circuits 4.Do not forcibly elongate exposed wires Package including: 1Pc * Alarm Horn