How much does this cost to the nearest dollar?

Honeywell Ademco 5821 Wireless Temperature Sensor
Wireless Temperature Sensor & Flood Detector, a versatile wireless device that can use different configurations Honeywell's 5821 is a versatile wireless device that can be configured to operate as either a standalone temperature sensor and/ or a remote temperature sensor or flood detector. It is ideally suited for a wide range of applications including bathrooms, laundry rooms and basements. There is a new version of this product Honeywell Honeywell Ademco 5821 Wireless Temperature Sensor Manufacturer HONEYWELL INTRUSION, Part 5821, Weight 0.01 Kilograms, Dimensions 4.21 x 1.65 x 1.3 inches, model number 5821, Batteries 1 CR123A batteries required.

Price is $57.00

Price: $57.34