BangGood
Program & circuit schematic:>>>http://files.banggood.com/2018/09/SKU120072.zip <<<Click to open Specification: Size: 42 x 24 x 12 mm Temperature display range: -9 to 60C Temperature error correction setting feature, set the range: -5 to 5C Working voltage: 3.3V~5V. (Note: the lower the voltage, the lower the luminance, the lower the power consumption) Package included: 1 x LED display module board