The economical chemical indicators can be started individually by pulling out the start strip. They measure only one or max. 2 temperature limits per indicator and are available for the following temperatures: -15 °C / -4 °C / 0 °C/ +5 °C / +10 °C / +10°C and +34 °C / +26 °C/ +31°C. The well known VCCM card is equipped with the only indicator that can measure two temperatures (10 °C and +34 °C).