Working conditions: 1.1. Power supply: 230VAC±10% 50/60Hz 1.2. Rated current of relay: 10A/220VAC 1.3. Ambient temperature: -15°C to 60°C, Relative humidity: 20% to 85% (no condensation) 1.4. Storage temperature: -15°C to 60°C Specifications: 2.1. Product dimensions: 77mm (L) x 34.5mm (W) x 58mm (D) 2.2. Installation dimensions: 71mm (L) x 29mm (W) 2.3. Sensor cable length: 2M (including sensor) Technical parameters: 3.1. Temperature control range: -50°C to 99°C 3.2. Display resolution: 1°C / 0.1°C (with integer/decimal switching mode) 3.3. Accuracy: ±0.5°C (-30°C to 50°C), ±1°C for others; PTC: ±2°C (-30°C to 50°C), ±3°C for others 3.4. Sensor type: (-50°C to 120°C) PTC (-50°C to 150°C) Material: ABS Color: As shown Package Contents: 1 x Digital Temperature Controller Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. Measurement allowed error is +/- 1-3cm.