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Using aluminum alloy bell cover, light weight, high loudness and easy installation.
The internal is driven by a 24v DC motor crankshaft and connecting rod to drive the bell, no relay action, low working current, high reliability
SG-SSD3505 fire audible and optical alarm
SSD4600 alarm bell
SSD4601 alarm bell
S-SSD4501 audible and visual alarm
SG-SSD4500 audible and visual alarm