HBJ-5 crane alarm, marine alarm, sound and light alarm. HBJ-5 sound and light alarm (also known as sound and light alarm) is an alarm signal device used in dangerous places to send warning signals to people through sound and various lights. Explosion proof sound and light alarm is suitable for installation in explosive gas environments containing Class IIC T6 temperature group. It can also be used in Zone 1 and Zone 2 explosion-proof areas with explosion-proof requirements in industries such as petroleum and chemical industry. It can also be used outdoors or outdoors. So, next, the editor will introduce the precautions for using sound and light alarms and the working principle of sound and light alarms; The HBJ-5 crane alarm, marine alarm, and large lifting machinery and other walking equipment are very important equipment in metallurgical enterprises. They are frequently used in outdoor operations, have low startup sound, and are fast in speed, and are prone to safety accidents due to not being noticed by on-site personnel. The HBJ-5 sound and light alarm produced by our factory is developed for the working and structural characteristics of large lifting machinery, and has many specialized features. Product features:·& 5W and 25W alarm sound systems& mdash; Loud voice· Rotating alarm light with stainless steel protective cover& mdash; High brightness, impact resistant· Weatherproof circuit process design&flash& mdash; Waterproof, dustproof, and reliable quality· Integrated warning lights and signals& mdash; Easy to install· Alarm triggered by AC 220V& mdash; Easy to operate· High brightness LED strobe lights can be selected& mdash; High quality, long lifespan, and high brightness technical parameters: working voltage 220V 50Hz, output power 10W, alarm tone, whistle or music alarm light type, high brightness LED flash light housing material, cold-rolled steel plate, galvanized+spray painted external dimensions (height x length x width): 230 * 135 * 290 (mm)& nbsp;