Ambient Weather WS-10-X4 Wireless Indoor/Outdoor 8 Channel Thermo-Hygrometer with Four Remote Sensors The WS-10-X4 (ws-10) includes an indoor thermo-hygrometer inside the console, and four remote thermometer-hygrometer sensors (f007th), which are all Displayed at the same time The display console can remotely read and update up to eight remote thermo-hygrometer sensors The console includes Audible and visual alarms when temperature and humidity exceed your pre-set minimum and maximum alarm settings Four additional sensors can be added (f007th, f007tp, f007t, f007pf) for comprehensive monitoring The console displays temperature and humidity, minimum and maximum temperature and humidity, which can be manually reset