Feature: 1. LED digital display, ℃ temperature display, can be used for most electric heating equipment boilers. 2. High‑accuracy chip control, accurate SMT accuracy welding, surface gold‑plated via hole process. 3. Selected electronic devices, double‑sided typesetting designed, safe and reliable welding process. 4. With AC12V power supply (transformer) and K‑type thermocouple, it is more convenient to install and use. 5. Embedded installation, suitable for most chassis instruments, industrial design concept, accurate measurement and strong anti‑interference. 6. The circuit adopts low‑voltage AC 12V power supply, which is safe and secure, and the temperature measurement is wider with the K probe. Specification: Item Type: Industrial Digital DisplayModel: DYG-5135 Measuring Range: 0~999℃ Temperature Measurement Accuracy: 0~999℃±1% Power Supply Voltage: Input AC220V output AC12V Measurement Input: K-type thermocouple L=1 meter 0-800℃| Refresh Rate: 150ms/time Resolution: 0.1℃ within 100℃/1℃ outside 100℃| Appearance Size: Approx. 79 x 43 x 35mm / 3.1 x 1.7 x 1.4in Hole Size: Approx. 79 x 39mm / 3.1 x 1.5inSize: Approx. 79mm / 3.1in70mm / 2.8in 43mm / 1.7in 39mm / 1.5in 35mm / 1.4in 70.5mm / 2.8in 39.5mm / 1.6in 76mm / 3in 13mm / 0.5in. Package List: 1 x Digital Display 1 x Transformer 1 x Thermocouple1 x Module Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.