Easy to read, has made bathtime much easier! Baby HATED the bath at first - turns out we were keeping the water too cold (better than too hot & burning them!) But now that we can safely put her into a nice hot bath, bathtime is much easier! Love how it flashed red if water is too hot. Our only 'critique' is so incredibly minor and insignificant - when the water is too cold, it flashed green - maybe it's just us, but we feel green screams good to go!