·Alarms: high and low temperature alarms, sensor failure alarm, power failure alarm for 72hours,voltage abnormal alarm, low battery alarm, automatic clean-filter alarm, High ambient temperature alarm, door ajar alarm.(LFZ-86L340II & 688 &936) ·Two alarms styles: buzzing,...
A Vibration Energy Harvester and Power Management Solution for Battery-Free Operation of Wireless Sensor Nodes. Sensors 2019, 19, 3776. [Google Scholar] [CrossRef] [Green Version] Hong, L.; Yao, H.; Cui, Y.; Yu, R.; Lin, Y.-W.; Chen, T.-W.; Xu, Y.; Qin, J.; Hsu, C.-...