The audio monitor, video monitor and sensor pad are all good products but they have some faults that Tommee Tippee are aware of but don't seem to want to fix or even admit.
The video display goes from full colour to purple permanently after you use the system at night (infra red mode). Tommee Tippee says "you will need to reset both units" every morning. The reset sequence is fairly complicated, involving detailed key press sequences on both devices, and not something a new parent has time to learn.
If you switch off the sensor pad (which you need to do if you remove the baby from the cot), the parent unit locks up and you can no longer use its controls until you switch the sensor back on again, switch off the parent unit and then switch the sensor back off. You cannot mute, switch off or change volume on the parent unit until you have done this. You are stuck with a noisy parent unit until either you complete this procedure or it runs out of batteries. Tommee Tippee say the solution is that instead of switching off the sensor pad when you lift the baby, “you would have to switch the pad off on the back of your baby unit and unplug the sensor pad from your baby unit” which is impractical and fiddly so counter-productive to the idea of using the pad.
Therefore only buy this unit if (a) you don't mind purple video and (b) you don't mind having no control over the parent unit until you go back to the baby's room to turn the sensor on and off again.
Security seems OK - the parent unit is paired with the baby unit, so that someone with the same product cannot access your device. I don't know if they use any further encryption or security.
Despite the above invonveniences, the product is good and we are using it. It is reassuring having the sensor and it seems to work solidly. The audio monitor works as you'd expect; the sound is clear and the triggering works. The video monitor we've not used yet and if we do, I imagine we'll just put up with it in purple rather than learning the reset procedure.
If you do have to deal with Tommee Tippee support, as I did at length in an attempt to unsuccesfully resolve the above issues, be aware that though they will reply, they send standard responses that don’t help much.
The Tommee Tippee Closer to Nature Video Sensor Monitor represents not bad value at the £90 price we paid on Amazon, but at the £200 price it is sold elsewhere I'd avoid it and buy another brand that tests their products more thoroughly.