... memory (99 sets) & RS-232 TES-135 Color Meter + Promoting Item & Free ShippingCheck the color difference between ... .f2mmDisplay modes:Color differenceΔ(L*,a*,b*), Δ(E*ab,C*ab, H*ab),Δ(Y, x, y), Δ(X, ... 10 – sec intervalsOperating temperature/humidity range:0°C to 40°C (32°F to 104°F) ; less than ... 85% relative humidityStorage temperature/humidity range:-10°C to 40°C (14°F to 104°F) ; less than ...