| VQ21TB | SGX Sensortech | PR PELLISTOR PR, 2V/300MA OC SOL | - | 7,326 | 
                                                    
                            | VQ31MB | SGX Sensortech | PELLISTOR PR 3.5V/90MA TC C CAN | - | 6,462 | 
                                                    
                            | 968-041 | SPEC Sensors, LLC | DGS-RESPIRR DIGITAL GAS SENSOR M | - | 3,852 | 
                                                    
                            | IR12EJ | SGX Sensortech | 19MM, HYDROCARBON INFRARED GAS S | - | 5,256 | 
                                                    
                            | VQ621T/1 | SGX Sensortech | VQ21 PELLISTOR VQ600 HEAD, METRI | - | 6,180 | 
                                                    
                            | INIR -CD-5% | SGX Sensortech | INTEGRATED INFRARED CO2 GAS SENS | - | 8,010 | 
                                                    
                            | 605-00009 | Parallax Inc. | PROPANE GAS SENSOR | - | 3,978 | 
                                                    
                            | HULSGMS10 | Honeywell Sensing and Productivity Solutions | SENSOR OXYGEN | - | 6,732 | 
                                                    
                            | VQ6MB | SGX Sensortech | PELLISTOR 2V, TC, CLOSED CAN COM | - | 4,428 | 
                                                    
                            | IR21EJ | SGX Sensortech | SERIES 2, 19MM, 0-5% CO2 IR SENS | - | 5,328 |