We use e-rram.co.za for all our 300+ sites globally (Approximately 48000 devices). it's web based and works for QA, BME, estates etc.

I've sent you a PM if you want to get in touch then I can arrange access for you to the demo site if you want to test it for your needs.

Anyone else who would like to take a peek and play around with it, just let me know.

Thought is the arrow of time...