Manual Operated Alarm Hand Crank Horn for Factory Residential Area Commercial Street Handheld-Emergency Multifunctional Horn for Outdoor

Manual Operated Alarm Hand Crank Horn Hand-Crank Alarm For Factory Residential Area Commercial StreetFeatures:and Hand-crank operated alarm is aluminum-alloy practical and By manually rotating the handle, the gearbox-of the transmission step by step acceleration to achieve the purpose of sound, the sound depends on the rotation-speed of the handle alarm is ideal-for getting people attention, or alerting workers for lunch-time, and also good for many other uses.Can be used for factories, families, schools, flood control, disaster relief, public and industrial occasions.Hand-crank operated alarm is used for warning and easy to carry. Timely warning, reduce the loss of people property and casualties.Specifications:Aluminum-Alloy Size: approx 186x186x170mm/7.32x7.32xx6.69 inches Color: Green/RedEffective Range: diameter 1000mOutput Frequency: 550±20HzPackage Includes:1x Hand-Crank AlarmNote:Please allow 1-2cm errors due to manual measurement.Due to the difference betweeen different monitors,the pic-may not reflect the actual color of the item.

• Can be used for factories, families, schools, flood control, disaster relief, public and industrial occasions
• Hand-crank operated alarm is used for warning and easy to carry. Timely warning, reduce the loss of people property and casualties
• Hand-crank operated alarm is aluminum-alloy practical and
• alarm is ideal-for getting people attention, or alerting workers for lunch-time, and also good for many other uses
• By manually rotating the handle, the gearbox-of the transmission step by step acceleration to achieve the purpose of sound, the sound depends on the rotation-speed of the handle