How much does this cost to the nearest dollar?

Xantrex Battery Temperature Sensor for XC Chrgr
Battery temperature sensor for use with XC chargers, MFG# Xantrex Technology is a world leader in the development and manufacturing of advanced products and systems for the mobile power markets. Battery Temperature Sensor (BTS) Designed for use with battery chargers. The BTS mounts on a terminal post of a battery in a bank or on the side of a battery and measures its temperature. Sends precise information to the charger or charge controller Brand Xantrex, Dimensions LxWxH 23 x 14 x 18 inches, Weight 0.2 Pounds, Style Sensor, Mounting Type Flange Mount, Specific Uses For Product Temperature, Dimensions 23 x 14 x 18 inches, model number Is Discontinued No,

Price is $41.00
Price: $40.84