... handle on the bell by hands. Manual fire alarm bell Feature:1. This fire bell is emergency alarm device, ... when there is fire, the supervisor or eyewitness can turn the ... the bell will alarm sounds. 2. This type fire bell is popular sold in Middle East, Asia, Eropean ... -3B3758010SY-4B41009722SY-6B615010025SY-8B820010525SY-10B1025012530SY-12B1230015035 Manual fire alarm bell