This is a dual display and dual control temperature controller, which can both control refrigeration or heating of two products. Easy setting, easy to install and use. Specifications: Model: ZFX-ST3012 Power Supply: 12V, 24V, 220V (Optional) Color: White Material: Plastic Temperature Measuring Range: -50~110 Temperature Control Range: -50~110 Temperature Measuring Accuracy: 0.5 Temperature Control Accuracy: 1 Working Temperature: 0-50 Storage Temperature: -10-60 Sensor Probe Cable Length: 1M/3.28ft Item Size: approx. 76 * 55 * 31mm / 2.99 * 2.17 * 1.22in Package Size: approx. 80 * 80 * 35mm / 3.15 * 3.15 * 1.38in Package Weight: approx. 96g / 3.39ounce Package List: 1 * Temperature Controller with Sensor Probe 1 * User Manual(English)