| Date | Time | Source | Headline | Symbol | Company |
| 04/24/2008 | 10:30AM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Notice of sales of securities on Form D (Regulation D) (REGDEX) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/10/2008 | 6:00PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Amended Statement of Beneficial Ownership (3/A) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/10/2008 | 4:01PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Amended Statement of Beneficial Ownership (SC 13D/A) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/08/2008 | 5:17PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Initial Statement of Beneficial Ownership (3) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/08/2008 | 4:50PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Statement of Beneficial Ownership (SC 13D) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/08/2008 | 3:30PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Annual Report (Small Business Issuers) (10KSB) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/07/2008 | 5:03PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Amended Statement of Beneficial Ownership (SC 13D/A) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/07/2008 | 5:01PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Amended Statement of Beneficial Ownership (SC 13D/A) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/07/2008 | 4:58PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Amended Statement of Beneficial Ownership (SC 13D/A) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/07/2008 | 6:01AM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Notice of Effectiveness (EFFECT) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/03/2008 | 4:16PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Post-Effective Amendment to Registration Statement (POS AM) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/03/2008 | 4:13PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Post-Effective Amendment to Registration Statement (POS AM) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 04/03/2008 | 4:07PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Current report filing (8-K) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 03/31/2008 | 4:36PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Notification that Annual Report will be submitted late (NT 10-K) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 03/24/2008 | 6:00AM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Current report filing (8-K) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 02/27/2008 | 12:09PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Current report filing (8-K) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 01/16/2008 | 3:57PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Prospectus filed pursuant to Rule 424(b)(3) (424B3) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 01/16/2008 | 3:51PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Prospectus filed pursuant to Rule 424(b)(3) (424B3) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 01/16/2008 | 3:45PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Current report filing (8-K) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 01/16/2008 | 2:47PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Statement of Ownership (SC 13G) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 01/14/2008 | 3:57PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Amended Current report filing (8-K/A) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 12/28/2007 | 2:56PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Prospectus filed pursuant to Rule 424(b)(3) (424B3) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 12/28/2007 | 2:55PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Prospectus filed pursuant to Rule 424(b)(3) (424B3) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 12/28/2007 | 2:52PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Current report filing (8-K) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 12/20/2007 | 1:35PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Current report filing (8-K) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 11/13/2007 | 9:09AM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc (Other) (424B3) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 11/13/2007 | 8:48AM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc (Other) (424B3) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 11/09/2007 | 3:52PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Initial Statement of Beneficial Ownership (3) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 11/09/2007 | 3:52PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Initial Statement of Beneficial Ownership (3) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |
| 11/09/2007 | 3:19PM | Edgar (US Regulatory) | Electronic Sensor Technology, Inc - Quarterly Report of Financial Condition (10QSB) | USOTC:ESNR | Electronic Sensor Technology Inc (CE) |