Fangrui Product Details 1. Tuya Wifi Sound And Light Door Magnetic Doors Windows Alarm Scene Linkage App Reminder 2. Gōngzuò Diànyā:dc 3v 2. Jìngtài Diànliú: Xiǎoyú Děngyú 120 Wéi Ān 3. Bàojǐng Diànliú: Xiǎoyú Děngyú 20 Háo Ān 4. Bàojǐng Shēngyīn: Dàyú 100 Fēnbèi 5. Wifi:ieee 802.11 B 2.4g 6. Gōngzuò Diànyuán:2 Jié Aaa 1.5v(bù Hán Diànchí) 7. Chǎnpǐn Qīngdān: Ménchuāng Gǎnyìng Qì +zhìnéng Mén Chuángǎnqì Tàncè Qì 8. Chǐcùn:37.5 X 90.5 X 21.5mm;17.5 X 57.5 X 17mm Tèdiǎn: 1. Wèi Ménchuāng Zhùshǒu, Wéi Ānquán Fánghù 2. App Kòngzhì, Shēng Guāng Bàojǐng, Ménchuāng Zhuàngtài Cháxún, Yī Jiàn Bù Chèfáng, Dìngshí Bù Chèfáng 3. Shuāngchóng Bàojǐng, Bàojǐng Shí Mén Cí Lìjí Fāchū Shēng Guāng Bàojǐng, Wēishè Xiǎotōu Tóngshí Yǐnqǐ Línjū Bǎoān Zhùyì 4. Rènyì Tiáojié Yīnliàng, Gēnjù Nín De Xūqiú Tiáojié 5. Suíshí Chákàn App, Jiǎnchá Jiālǐ Ménchuāng Shìfǒu Guān Hǎo 6. Yuǎnchéng Jiējǐng, Dāng Ménchuāng Bèi Fēifǎ Dǎkāi Shí, Mén Cí Xiànchǎng Bàojǐng Bìng Jiāng Jǐng Qíng Tuīsòng Zhì App 7. Dìngshí Bù Chèfáng Kěyǐ Gēnjù Nín De Xūqiú Shè Dìng Shíjiān, Ànshí Zìdòng Fángdào, Shěng Shí Shěnglì 8. Tiēxīn Shèjì, Yánchí Bàojǐng 9. Ānquán Shǒuhù, Fáng Zéi Fángdào 10. Shǐyòng Guǎngfàn, Ménchuāng, Chōutì, Wénjiàn Guì, Bǎoxiǎnxiāng Děng 3. 437 5,000 4. Working Voltage: Dc 3v 5. Static Current: Less Than Or Equal To 120 Microamps 6. Alarm Current: Less Than Or Equal To 20ma 7. Alarm Sound: Greater Than 100 Decibels 8. Wifi: Ieee 802.11b 2.4g 9. Working Power Supply: 2 Aaa 1.5v (battery Not Included) 10. Product List: Door And Window Sensor + Smart Door Sensor Detector 11. Dimensions: 37.5 X 90.5 X 21.5mm; 17.5 X 57.5 X 17mm 12. Features: 13. Guard The Doors And Windows For Safety Protection 14. App Control, Sound And Light Alarm, Door And Window Status Query, One-key Arming And Disarming, And Scheduled Arming And Disarming 15. Double Alarm, The Door Sensor Immediately Sends Out Sound And Light Alarm When Alarming, Deters Thieves And Draws The Attention Of Neighbor Security 16. Adjust The Volume Arbitrarily, According To Your Needs 17. Check The App A