| 110-205 | SPEC Sensors, LLC | SENSOR GAS ALCOHOL ANALG CUR MOD | - | 6,672 | 
                                                    
                            | 968-005 | SPEC Sensors, LLC | SENSOR OZONE ANALOG VOLTAGE MOD | - | 5,922 | 
                                                    
                            | 968-001 | SPEC Sensors, LLC | SENSOR GAS CO ANALOG VLTG MOD | - | 6,624 | 
                                                    
                            | 968-004 | SPEC Sensors, LLC | SENSOR NITR DIOX ANALOG VLTG MOD | - | 5,382 | 
                                                    
                            | 968-006 | SPEC Sensors, LLC | SENSOR SULF DIOX ANALOG VLTG MOD | - | 6,228 | 
                                                    
                            | GMS10RVS | Honeywell Sensing and Productivity Solutions | SENSOR OXYGEN 4V 40UA | - | 5,904 | 
                                                    
                            | 110-901 | SPEC Sensors, LLC | SENS GAS AIR QUAL ANALG CUR MOD | - | 6,768 | 
                                                    
                            | 968-040 | SPEC Sensors, LLC | DGS-IAQ DIGITAL GAS SENSOR MODUL | - | 6,444 | 
                                                    
                            | INIR -EK4 | SGX Sensortech | INTEGRATED INFRARED DEVELOPMENT | - | 6,180 | 
                                                    
                            | 968-038 | SPEC Sensors, LLC | DGS-SO2 DIGITAL GAS SENSOR MODUL | - | 2,232 |