Smoke Detector, Safe Security Alarm Sensor

Features:
Most Home Installs Independent items Which Can only Alarm on Site With APP Remote Push,It can successfully Stop the fire in the Bud Super Long Standby ,Energy Saving and Environmental Protection Adopt High-performance Ultra-low power Consumption Microcontroller to Avoid Frequent battery Replacement
SPECIFICATIONS:
Material: ABS Flame-retardant Materials Power Supply: DC9V(6F22-Battery) Alarm Decibel:?110dB
 Smoke Detector Home Safe Security Smoke Alarm Sensor 
Package Included:
1*Wifi Smoke Detectors

WARRANTY

We'll refund your money if the item hasn't been delivered within 40 days after purchase. You have 2 weeks to request a refund — until day 60.
Product doesn't match the description? Contact us within 30 days after you receive it!
In case of cancellation, money will be refunded to your account within 3 days.