Fender Original Tuner DBL

I bought a bass set that included a Thomann CTW-10 Clip-on Tuner. From the beginning I realised that it wasn't good for tuning my bass because it was struggling with the fat string (E). So I decided to buy Fender's Original Tuner. Unfortunately it was far more disappointing because sometimes it struggled to find tuning even with the A string! No point mentioning that the chances to tune the E string are less than the Thomann's tuner. I tried to clip it on several positions on the head but it didn't change the disappointing results. So, as I wrote on the title, it's definitely not for basses.