... the meter can measure B, S, WRE during the temperature 0~600oC,its measurement could not reach 0.5 class ... output,relay contact 250VAC/7AIt has four methods including upper limit, lower limit, positive deviation ,negative deviation .It can output 2 ... 3) 220VAC±10% 50HZpower consumption≤4W 11. working circumstance Environment temperature:0~50,humidity ≤85,no corrode and strong electromagnetism disturb ...