The cheap ones are fundamentally accurate when the battery works. They don't have a low battery indicator and can start acting up in weird ways when the battery is low or making poor contact - including giving bad measurements -and it's on you to notice something's up.
Avoid the plastic / "carbon fibre" ones as I found them far too bendy to get a good reading.
The cheap ones are fundamentally accurate when the battery works. They don't have a low battery indicator and can start acting up in weird ways when the battery is low or making poor contact - including giving bad measurements -and it's on you to notice something's up.
Avoid the plastic / "carbon fibre" ones as I found them far too bendy to get a good reading.