Jweweunyu is a brand that has already been registered. Only authorised sellers can sell products under Jweweunyu. Jweweunyu offers you high-quality products and best customer service. Temperature measurement range: -50 °C ~ 110 °C. Temperature control range: -50 °C ~ 110 °C. Temperature control accuracy: 0.1 °C. Adjust 1. Press the up button to display the start temperature. 2. Long press the UP button to flash the temperature display. Press the UP or down button. 3. Set the starting temperature value. 4. Press the OFF button to display the stop temperature. 5. Long press the OFF button to flash the temperature display. Press the UP or down button. 6. Set stop temperature button. Colour: grey + white. Material: plastic. Size: 60 x 45 x 31 mm. Package contents: 1 x LED temperature controller. Only the above package content, other products are not included. Note: Due to the light and screen settings, the colour tone of the photos and the actual item may be slightly different. The allowed measurement error is +/- 1-3 cm.