Product review (5 stars): good quality and fun to have
I have had this for 2 years, I really like it. I use it with 5 sensors and they  are quite accurate, and can be adjusted if they are off. I would definitely buy it again if it broke. The colors are an awesome feature. I tried using the sensors with rechargable batteries, but they don't last long enough, stick with alkaline which last much much longer.