Does the property company need to seek the opinions of the owners to replace the residential sentry box at its own expense?

No need. According to Article 35 of the Property Management Regulations, the property service enterprise shall maintain and repair the property facilities and equipment in accordance with the contract, the decision of the owners' meeting or the relevant provisions, and at the same time, replace and expand the property facilities and equipment in time according to the actual needs and the requirements of providing service quality. Therefore, if the replacement of the residential sentry box belongs to the maintenance category of property facilities and equipment, then the property company does not need to seek the opinions of the owners. Property management company is a professional service organization, which is responsible for managing and maintaining the daily work of houses and land, including but not limited to residential property management, landscaping, garbage disposal, cleaning, safety inspection and equipment maintenance.