How much does this cost to the nearest dollar?

CJOVSE RV Surge Protector 50 amp, ETL Certified Portable RV Circuit Analyzer Waterproof with 4200J Integrated Surge Protection, Power Defender Voltage Protector/Monitor for RV Camper Travel Trailer
Safe Equipment RV Surge Protector 50 amp This 50 amp RV surge protector with ETL Certified, safety and reliable, 50AMP, 1ns rapid response, absorbs high-voltage spikes up to 4200 Joules, safe equipment protect the RV electrical system from dangerous high/low voltage, lightning strikes, sudden power surges caused by thunderstorm. This power defender voltage protector/monitor is a must have for RV, campers, travel trailers, motorhome, also be a great RV accessories gifts. RV Surge Protector & RV Circuit Analyzer 50amp All in one design,

Price is $47.00

Price: $46.89