Heiman Wifi Smart Motion Sensor: Pir Motion Detector For Wireless Home Security, Product Details Note: No hub required, 2.4GHz Wi-Fi network only. Wifi PIR motion detector sensor via "Tuya" or "Smart Life" APP. Real-time and Remote Alarm: When the motion sensor is armed and detects movement, it sends alarm information to the mobile APP. real-time monitoring of human infrared signals to protect you and your family. Stable and Reliable: Automatically adjust the threshold, improve the stability of the infrared presence sensor, and effectively prevent false alarms and interference caused by temperature changes. (Detection distance: Max 9M under 25C, will be different depending on environmental temperature, Detection angle: 90) Pet Interference Prevention: When the alarm is installed at the recommended altitude, the detector will not alarm when pets less than 11 kg pass by. Long Battery Life: No need to drill for installation, just stick and useprevent your walls from damage. This sensor with energy efficient battery (1 x CR17335/CR123A included) provides 5 years under normal use. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.