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50 Pieces Negotiable
Product Description
Technical parameter Rated voltage: DC3.7V alarm sound intensity: >100dB Visual distance: 24800m Light source (LED) Average service life: >10000h Continuous discharge time: =6h(sound)/>5h/(sound and light) Charging time: 6h Battery life: >1000(cycle) Protection level: IP65 Explosion-proof mark: ...