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The PL-DB-zd003b from Jiangxi Polun Intelligent Technology Co. Ltd is a wireless doorbell with 85 to 260VAC voltage range, 433.92MHz operating frequency, 110dB noise level, up to 300m receiving distance and -20 to 55 C operating temperature. This 85x65x23mm unit has 45 polyphonic ringtones and a four-level volume adjustment. It is paired with an IP44-rated launcher that measures 77x50x16mm, operates in -20 to 65 C and runs on a 12V, 23A battery.
Jiangxi Polun has a 21,000sqm dust-free workshop that complies with ISO 9001, 14001 and 45001 requirements. It provides OEM and ODM services.
Analyst’s comment:
The global wireless doorbell market is set to reach $15.5 billion by 2028, according to Vantage Market Research.
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