TP50 presents temperature and humidity on a local LCD and keeps high/low readings. Its manufacturer specifications list no wireless technology. It fits a room you visit regularly when a visible reading is enough; it does not provide an off-site alert or the app-based history offered by a separate logging system.
The stated humidity accuracy is ±2% from 30–80% RH and ±3% outside that range. Use readings alongside their location and conditions rather than treating a comfort indicator as a diagnosis of moisture damage.
The published setup uses one AAA battery and offers tabletop or magnetic placement. Choose a location representative of the room you intend to observe, and keep access to the display and battery.