Regarding the adjustable battery of UPS5000-E, when one battery is damaged, at least () batteries need to be removed, and then the corresponding number of batteries should be set on the monitoring panel.

Which of the following is the main component of the electrolyte of lead-acid batteries?

UPS5000-A-120KVA can support wall installation

If a manufacturer wants to connect a third-party air conditioner to the dynamic environment monitoring system, detect the temperature and other parameters of the air conditioner and control the air conditioner, which interface of the dynamic environment monitoring system can be connected?

Which of the following belongs to the interface? (Multiple choice)