Velleman Temperature sensor kit

Range: -20...+70 °C. Output: 0...20 mA current loop. Accuracy: 2 °C full range. One single adjustment. 3-wire system: GND, +V and OUT. Voltage supply: 12 VDC for 0...5 V out / 15 VDC for 0...10 V out. Difficulty level: Difficult. DIY kit.