Acrylic have a new Windows-based Bluetooth LE Analyzer that can be used to check for and test Bluetooth devices. The application has a scanner showing the Bluetooth signal strength range (RSSI):
It also provides analysis using dynamic and customizable graphs showing RSSI (signal strength), signal distribution over time and approximate device distance. A BLE beacon viewer shows detailed information on Low Energy Bluetooth devices. The BLE Packet Analyzer explores Bluetooth packet contents:
There’s also an inventory system to keep track of your devices. The free version scans, detects iBeacons and visualises signal strength. The licensed version has the packet analyzer, inventory and advanced filtering.