1. DC power supply: This product needs to be connected to a DC 4-28V power supply, the red wire is connected to the positive pole of the power supply, and the black wire is connected to the negative pole of the power supply. The biggest feature of this product: Built-in reverse anti-burn circuit, avoiding problems caused by improper operation during user use. Friendly reminder: Do not connect to 220V AC!
2. Normal temperature collection interval: -55℃ to 125℃, resolution-55℃~-125℃, resolution 0.1℃.