How much does this cost to the nearest dollar?

Proteus M5 - WiFi Motion Sensor with Email/ Text Alerts
Motion detector with email / text notification 802.11 b / g / n WiFi connects to your home 2.4GHz WiFi / office networks Programmable alerts when motion is detected, or when no motion is detected for a time period. Easy to set up, with back mount power plugs directly into wall outlet Sensor fine tuned to detect human movements, avoid pets. Dimensions 5 x 3 x 4 inches, Weight 0.7 Ounces, model number M5, Rank Electronics Security & Surveillance Equipment 7756, Is Discontinued No, Available April 26, 2017, Manufacturer Proteus Sensor, Brand Proteus, Color White, Power Source Corded Electric, Mounting Type Wall

Price is $99.00
Price: $99