Alcoholmeters; Thermostats; Alarms for the detection of inflammable gases; Automatic valves; Climate control systems consisting of digital thermostats for cooling equipment, and a programmable logic controller (PLC) with input and output features for temperature and humidity, which works with a remote digital read out controller; Climate control systems consisting of digital thermostats, air conditioning, heating, ventilation and drying control devices; Electronic collars to train animals; El...