Range: - 50 ~ 50 ℃ / - 50 ~ 100 ℃, accuracy: ± 0.5 ℃, power supply mode: DC2 5V / 5V / 12V / 24V wiring mode: voltage type: 3-wire, current type: 3-wire, RS-485 signal: 4-wire signal output: voltage type: 0 ~ 2.5V DC, 0 ~ 5V DC, current type: 4 ~ 20 mars-485 signal: support Modbus Protocol (baud rate 9600 can be set, address 0-255 can be set) response time: < 1s, measurement stability time: 1s, working environment: temperature - 50 ℃ ~ 100 ℃, humidity 0 ~ 100%