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ELECTRONIC SYSTEMS TECHNOLOGY, INC STATEMENTS OF OPERATIONS (Unaudited) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Details    
Sales, net $ 273,968 $ 374,166
Cost of sales (149,231) (175,915)
Gross profit 124,737 198,251
Operating loss 238,506 258,964
General and administrative 95,713 93,506
Research and development 54,897 65,474
Marketing and sales 87,896 99,984
Operating loss (113,769) (60,713)
Other income    
Interest income 3,463 5,887
Total other income 3,643 5,887
Net loss before income tax (110,306) (54,826)
Benefit (provision) for income tax 0 0
Net loss $ (110,306) $ (54,826)
Basic and diluted loss per share $ (0.02) $ (0.01)
Weighted average shares 4,946,502 4,953,043