Annual report pursuant to Section 13 and 15(d)

Product warranty (Tables)

v3.3.1.900
Product warranty (Tables)
12 Months Ended
Dec. 31, 2015
Guarantees [Abstract]  
Schedule of Product Warranty Reserve
Changes in the Company’s warranty reserve were as follows:
Warranty reserve, December 31, 2013
$
95,000

Warranty provision for units sold
207,583

Costs of warranty incurred
(155,583
)
Warranty reserve, December 31, 2014
147,000

Warranty provision for units sold
87,690

Costs of warranty incurred
(124,690
)
Warranty reserve, December 31, 2015
$
110,000