{"product_id":"hand-operated-sirens-lk-120-type-hand-grand-fire-alarms-hand-crank-manual-operated-alarm","title":"Hand Operated Sirens LK-120 type Hand Grand Fire alarms,Hand Crank,Manual Operated,Alarm","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eSound Rating: 120±2dB(A) @1M\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eOutput Frequency: 600±20Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eEffective Range : 2km diameter\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eNet Weight: 9Kg\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cb data-spm-anchor-id=\"a2700.wholesale.0.i37.170934a7neNwrG\"\u003eProduct Description:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cb data-spm-anchor-id=\"a2700.wholesale.0.i37.170934a7neNwrG\"\u003e Alarms including hand alarm, electric alarm , each  place for emergency warning,  only hand alarm without power support, powered by turning a crank issued a warning  signal effectively. Sound speed depends on the handle moved. Baffle the shutter  mechanism is set in the sound window, can select the sound intensity signal, quickly  closed the window, blocking, produce different signals.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cb data-spm-anchor-id=\"a2700.wholesale.0.i37.170934a7neNwrG\"\u003eDriven by turning a crank wheel at high speed, when the wheel turns, into the air  from the side of the tuyere wheel, high speed and high pressure to set the wheel on  absorption of air of resonance in the window of the base and at the same time\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cb data-spm-anchor-id=\"a2700.wholesale.0.i37.170934a7neNwrG\"\u003eWater conservancy, flood control, reservoir, civil defense, forces, fire control, prisons, mining, gas stations, ships, airport, plains, pasture, forest farms, factories, schools, hotels, hotel and open barracks, the mountain rescue the enterprises and institutions,  etc\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cb data-spm-anchor-id=\"a2700.wholesale.0.i37.170934a7neNwrG\"\u003eWithout the power support, compact structure, removable, light weight, easy to carry,sound intensity can be adjusted and produce different signals, low frequency, wide  scope of application, etc\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eHand operated siren LK-120 is designed to provide effective warning in applications where there is no power supply\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003ePowered by rotation the handle,this model has a plate to shut off the sound once up to speed giving it the ability to produce different tones\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eRobust and compact,the siren can be easily transported to remote locations and folds up to a small size for ease of handling\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cimg data-spm-anchor-id=\"a2700.wholesale.0.i39.170934a7neNwrG\" class=\"magic-24\" data-src=\"https:\/\/sc01.alicdn.com\/kf\/HTB1GKOvazzuK1Rjy0Fpq6yEpFXaX\/234697075\/HTB1GKOvazzuK1Rjy0Fpq6yEpFXaX.jpg\" src=\"https:\/\/sc01.alicdn.com\/kf\/HTB1GKOvazzuK1Rjy0Fpq6yEpFXaX\/234697075\/HTB1GKOvazzuK1Rjy0Fpq6yEpFXaX.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Electronic Pro","offers":[{"title":"Default Title","offer_id":46886591398206,"sku":"1000225","price":8950.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2787\/9162\/files\/1_015f809a-b66b-4d9c-88fe-e76832c948c2.jpg?v=1693475184","url":"https:\/\/electronic-pro-south-africa.myshopify.com\/products\/hand-operated-sirens-lk-120-type-hand-grand-fire-alarms-hand-crank-manual-operated-alarm","provider":"Electronic Pro ","version":"1.0","type":"link"}