Material / Signal: 4-20 AM Measurement Range; temperature: 0-50 °C, plus or minus 35 °c-40-70 °C, humidity: 0-100% accuracy: 15-35 °C: PLUS OR MINUS 0.8k-35-50 °C: PLUS OR MINUS 1K humidity: 30-70% : plus or minus 3% 0-90% : plus or minus 5% response time: temperature: 8.5 Min Humidity: 20s protection level: IP30 POWER SUPPLY: DC24V CONNECTION: 4 wires