... method is foolproof protection parameters<3>Main technical parameters1), input :(a) traffic signal input: voltage signal: V---> 3 V (b) ... °C, temperature, the lower adjustable. (c) control signal input: contact signal (with the same function to button operation panel ... 9, power supply: AC220V ± 10% 10, the installation type: tray-type<4>Forms of work1, Single Controller2, multi-path quantitative ...