How much does this cost to the nearest dollar?

YoLink Water Leak Sensor 2,1/4 Mile World's Longest Range Smart Home Water Leak Sensor,Water Leak Detector with Built-in Siren Up to with Alexa and IFTTT-YoLink Hub
STATE-OF-THE-ART Smart Water Leak Detection LoRa-based 1/4 mile open-air range, 2+ year battery life, no dependence on WiFi, device-to-device pairing provides functionality even with the loss of AC and/or internet! ROPE STYLE water-sensing cable, 4.2 feet (1.2 meter) long, additional cables can be added, for detection in confined spaces, such as under a dishwasher, and for defining specific detection areas, such as encircling a water heater THAT WAS EASY! Installs quickly and easily,

Price is $24.00

Price: $23.99