Detailed Product Description Digital temperature displays Input: Pt100, Pt500, Pt1000, temperature range: -200 ~ +850.0 (for the general 0 ~ 500 ) Cu50 temperature range: -50 ~ +150 ... <20uA, current sampling <4mA (sampling time 200mS / times) Working conditions: Temperature 0 ~ 45 , humidity below 85% (without frosting)