Home Amazon Goldbox deals Amazon: SENTRY CA279 Jumbo-Key Pocket Standard Function Calculator Amazon Goldbox deals Amazon: SENTRY CA279 Jumbo-Key Pocket Standard Function Calculator By ARCOM - 14 February 2017 312 0 SHARE Facebook Twitter Amazon Goldbox Deal: List Price: $4.99 Deal Price: $3.99 You Save: $1.00 (20%) CA279 Jumbo-Key Standard Function Calculator Expires Feb 27, 2017