How much does this cost to the nearest dollar?

TELLUR Smart WiFi Contact Sensor, Door and Window Sensor for Home Security and Smart Home Automation, Phone App, Push Notification, No HUB Required
Compatible with Tellur Smart app, perfectly integrated in the Smart Home ecosystem. Easy to install and use with TELLUR Smart App, Smart life app, tuya app (iOS & Android). independent use through internet, only with smartphone. No Hub required. Supports up to 150 registered devices Timer. Schedule. Scenes. Integrated functions. Fully customizable app Works with classic AAA batteries with low energy consumption. Low battery notification. Tamper notifications - alerts for unauthorized handling. Manufacturer TELLUR, Part Weight 2.29 ounces, Dimensions 10 x 10 x 10 inches, model number Batteries 2 AAA batteries required. (

Price is $23.00
Price: $22.99