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Wireless 433MHz Smoke Sensor Smoke Detector Built-in Transmit Antenna Long Distance Work Support M2B G2B PG103 W2B G18 G90B 30A

$19.90 USD $25.90 USD

● A part of Alfawise PG - 105 security alarm system
Sensitive smoke detection, instantly emit an alarm when smoke is detected
Sound alarm and App alarm ( need 433mHz gateway ), check the home security situation anywhere
Universal 433mHz frequency, can be matched with almost all home security gateways
● 75dB alarm sound, will not scare the elderly and children
● 1-year battery life, no need to change batteries frequently

Transmission frequency: 315 / 433mHz
Launch distance: not less than 120m ( open distance )
Alarm sound: 75dB
Battery life: 1 year

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