Quarterly report pursuant to Section 13 or 15(d)

SIGNIFICANT ACCOUNTING POLICIES (Details)

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SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
9 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Mar. 31, 2019
SIGNIFICANT ACCOUNTING POLICIES      
Standard and Extended Product Warranty Accrual $ 162,449   $ 143,500
Product Warranty Expense $ 26,911 $ 35,618