【Dual Modes, Free Switching】The motion sensor supports one-key switching between Doorbell Mode and Alarm Mode, adapting to multi-scene needs. Doorbell Mode gently reminds you of visitors’arrival, while Alarm Mode strongly deters illegal intrusions after being triggered. It balances practicality and safety, suitable for homes, shops, garages, etc. 【PIR Infrared Sensing Technology】The motion sensor alarm features a 120°infrared sensing angle and a detection range of up to 26ft/8m. It triggers an alarm immediately when warm objects like humans or animals enter the sensing area, with sensitive response and low false alarm rate for comprehensive protection. 【125dB Security Alarm】The shed alarm with remote control is equipped with an SOS button. With just one press, it emits a 125dB alarm sound that is clearly audible from a distance. It quickly deters intruders and attracts the attention of people nearby, adding a safety barrier for the elderly, children, and those living alone.The alarm has three adjustable volume levels (90dB, 110dB, 120dB), allowing you to select different volume levels to suit different environments. 【100m Long-Distance Remote Control】The shed alarm comes with 1 wireless remote control, featuring an effective control range of up to 328ft/100m (sound range in open areas). You can turn the alarm on/off and switch modes without close contact with the device. It’s operable in the living room or bedroom at home, and eliminates the need for frequent trips to the device placement in shops, saving time and effort.