Hand-cranked siren

Hand-cranked siren, hand, sirens sound level: 110 ± 2 (A grade) in a radius of 1 meter output frequency: 550 ± 20 Weight: 1.73kg Material: Aluminum Hand siren sound pressure: 110 ± 2 Output frequency: 550 ± 20 Weight: 1.2kg average sound pressure level (A-level) 110 dB (in a radius of 1 meter) effective range: 500 m hand sirens, no power supported by a hand-cranked sounder, due to local differences, called not the same (hand alarm, manual alarm, manual alarm, portable alarms, no power alarms). It contains the handle, geared mechanism, the clutch slider, fixed wheel, Naruto wheel, audio window coverings, gear box, box frame, handle and geared mechanism driving shaft connected to the output shaft through gear growth the slider pin is connected to the clutch, clutch slider and wheel flange friction drive connection. Its purpose is no power support, providing motivation for make alarm alarm signal, the speed of sound depends on the hand by shaking the handle. Hand-cranked siren divided into fixed, portable hand-cranked siren from the style and use. Hand-cranked siren light weight, easy to carry, foldable ,, when the hand grip will sound an alarm. After the earthquake, during the processing of lake, this hand alert has played a positive role, because the power supply, traffic is blocked, other mobile alerts do not enter the alarm area, and light, easy to carry in hand Alert to become the best alarm. Widely used in factories, schools, military units, special flood control, natural disasters, the open barracks, air defense, mountain rescue and sea border posts, forest fire prevention, flood control flood control, fire, prisons, reservoirs, ship, mining, plains, pastures, gas stations , airports, forestry, hotels, hotels and other emergencies places. Things can effectively provide timely warning, reduce people's property damage and casualties. Must Haves any place emergencies! Jiang 苏百锐 Special Trade Co. (Jiangsu Bright trading co., Ltd) mainly sales agents and respirators, long tube respirators, escape respirators, heavy anti-chemical suits, light chemical warfare clothing, fire guns, bubble guns, inflatable liferafts, can be suspended liferafts, inflatable lifejackets, fire pumps, air pump, breathing air pump, life jacket lights, life buoy lights, life raft light, oil-water separator, The new marine oil and water separator, 15PPM oily water treatment equipment, sewage treatment plant, sewage storage cabinets, pressure tank, warehouse bottom ballast water, marine oil and water separator, the new marine oil and water separator, 15PPM oily water treatment equipment, marine sewage treatment plant, marine sewage storage cabinets, marine pressure tanks, marine bunker bottom ballast water, fire equipment, protective clothing, thermal clothing, chemical suits, insulated clothing ,, fire insulation suits, immersion suits, insulation suits, anti-bee suits, slow descent, gas mask, work jackets, sailor knife, waterproof flashlights, ship binoculars, buoyant, three life jackets, life jackets, the new standard life jackets, life buoy, lifebuoy plastic, foam applicator, embarkation ladder, pilot ladder, aluminum ladder, stick ladders, fire extinguishers, dry powder extinguishers, foam, CO2 fire extinguishers, file mice, life-saving food rations, fresh water, magnetic compass, radar reflector, radar transponder, pneumatic throw rope, inflatable belt, Robertson stretcher, basket stretcher, rescue board, rescue kits, position-indicating lights, releaser, bell, gong, fog bell, buoyant rope, fire equipment, diving equipment, diving knives, fire Axe, explosion-proof lights, rechargeable explosion-proof lights, iron fire boxes, stainless steel fire box, Nakajima hydrants, fire wrench, fire-resistant rope, valve frame, international shore connection, more water sprinklers, lights, signals the ball, fire boots, helmets, ladder, horn, smoke signals, hand-held red flares, red parachute signal, buoyant smoke signal, combination smoke signal Lifebuoy self-igniting lights and orange smoke, throw rope, throwing equipment, pneumatic throwing equipment, inflatable Security ring, inflatable life-saving rings, pennants, signal ball, powered air respirators, fire hose boxes, fire equipment boxes, sand boxes, emergency escape breathing apparatus box, air foam system box, platform hoists, lifebuoy release device, plugging equipment life jacket tank, fire hose, fire sprinklers, fire fittings, fire adapter, fire hydrants, fire extinguishers frame, lifebuoy release device, life buoy rack, shelf life rafts, oxygen breathing apparatus, alarm, hand Shake alarm, Su generator, various fluorescent labels and other products.