Hand emergency evacuation alarm siren aluminum lockable manual weight: 1.2kg decibel sound pressure: 110 db Transmission distance: 1km Features: hand-cranked siren LK-100 type without power, no power can provide a support in both places kind of effective police. Simply shake the handle clockwise by hand by hand, speeds of up to junior (50-80 rev / min) can achieve the desired effect of alarm, the sound sharp, shocking big penetration. Alarm sound depends on the handle speed of shaking, the new hand set alarm sound tailgate window shutter mechanism, you can quickly close the sound window, blocking the sound, a different signal. Hand-cranked siren small size, light weight, easy to carry, easy to install. No tools are required. Just face kind of place and people standing 0.15 square can be a normal operation, the mobile operations is very strong. Applications: Civil Defence, the armed forces, detention centers, prisons, mines, airports, pasture, depots, warehouses, hotels, Sadian other business units in the event of crisis unit in the event of critical situations, require the use of alarm equipment. Hand-cranked siren used for emergency warning, easy to carry its products. Flood control, disaster, forest fire, military supplies, public and industrial applications to respond to emergencies alarm use. But also wild, outdoor tourism, forest protection is essential supplies. Is separated and the bailout of staff Assembly. Sales Hotline: Contact: Zhang Qian phone: 18752901698, QQ: 18752901698 E-mail: sale14@brtjs.com Tel: 0515-85265566 Fax: 0515-85265566 Homepage: www.brtjs.com