9 Apparatus and instruments for measuring, signalling, temperature, humidity, pressure and flow control, namely, measuring, control and regulating devices for space heating and air conditioning technology; apparatus and instruments for measuring, signalling, temperature, humidity, pressure and flow control, namely, thermostats, temperature regulators in the nature of feed back controllers, temperature regulating solenoid valves for use with energy producers, temperature regulating slides in the nature of valves for use with energy supplier, temperature sensors, temperature control devices in the nature of automatic temperature controllers, thermometers; apparatus and instruments for measuring, signalling, temperature, humidity, pressure and flow control, namely, pressostats being pressure controllers, pressure regulators in the nature of feed back pressure controllers, pressure regulating valves for use with solar energy heating, pressure regulating slides in the nature of pressure valves for use with energy distribution, pressure sensors, pressure controlling devices in the nature of pressure control equipment for preventing blowouts; apparatus and instruments for measuring, signalling, temperature, humidity, pressure and flow control, namely, flow-through regulators for use in the commercial climate control field, flow-through regulator valves for use in the domestic field, flow-through regulator slides in the nature of control valves for regulating the flow of gases and liquids for use with energy distribution for use in the domestic field, flow-through control devices in the nature of control valves for regulating the flow of gases and liquids; apparatus and instruments for measuring, signalling, temperature, humidity, pressure and flow control, namely, measurement reading devices in the nature of computer peripheral equipment, measurement feelers in the nature of sensors for metering , regulators being automatic controllers for liquid lines, two-point regulators being automatic controllers for liquid throughput, three-point regulators being proportional controllers for liquid processors, proportional regulators being flow controllers for climate control installations; apparatus and instruments for measuring, signalling, temperature, humidity, pressure and flow control, namely, control devices in the nature of electric control panels for temperature, pressure, moisture and flow-through of heating and air conditioning systems; apparatus and instruments for measuring, signalling, temperature, humidity, pressure and flow control, namely, automatic valves, barometers, warning devices, namely, bells, alarm circuit breakers, electrical cables, electrical circuit boards, electrical conductors, laboratory filters, pressure gauges, water meters, electric motion sensitive switches, automatic nozzles, electric plugs, pressure indicating plugs for valves, rheostats, solenoid valves, electrical switches, thermometers not for medical use, thermostats