Have any of you bought the system currently on offer from Maplin?
It is quite a lot cheaper - and seemingly easier to install - than systems using sensors *inside* the tyre. But it seems to me that it may have several downsides, so I'm wondering whether these are real or not:
- It presumably has to keep the valve pin depressed in order to 'feel' the pressure and thus relies on sealing on the thread. Does this result in loss of pressure?
- Because the sensors are external, they could potentially be nicked. There is apparently some security device to prevent the sensors from being unscrewed. How does it work, and how secure is it?
- Each sensor weighs 15 grams and could potentially unbalance the wheel. As far as I can make out, wheel balancing seems to be carried out to a tolerance of about 5 grams - so 15 grams may be significant. Is it necessary to have the wheels re-balanced after fitting the sensors?
Any general comments on accuracy, reliability, ease of use, etc.?
TIA.