Review on VIVOSUN Aquarium Thermometer Terrarium Temperature Fish & Aquatic Pets by Eric Avina

Received it today and was happy to open and install it. That happiness ended. I noticed only one was tuned to F instead of C, don't worry, open it up and move the lever, right? No, it caused the device to fail. Even the slightest pressure on the device's body drove him mad. Surely that's just one of the four, isn't it? Wrong, the second block I opened behaved the same way. After a 50% rejection rate and feeling how cheaply made the device was, I decided it wasn't even worth opening up and trying the other two as I needed three of the four to make them work. I'm already processing a refund.