40A Key Card Energy Saving Switch BY HIPHEN SOLUTIONS Energy-Saving Intelligent Switch installed in side of the wall beside the door. when checking in, the guest insert the card (keycard) into the energy saving switch, the general supply will be connected to the room, and all the electrical equipment (lighting, air conditioning, TV, etc.) can be used; when g...
The O2 meter is a device that detects the presence of oxygen(O2) gases in an area, often as part of a safety system. The professional detector adopts the electrochemical sensor, which gives a quick and accurate measurement. It can continuously monitor 0-25% O2 gas concentration accurately in the surrounding environment.
