Dear SirsWe are from Sri Lanka and require the following item for Telecom Transmission Towers. We have an order possible for a minimum of 500 units initially but we need to get a sample to test. Can you please give me a price for a sample and 500 units.GPRS intelligent circuit breaker, automatic reclosing, mobile phone remote control switchThansShiraz LatiffHummingbird International PTE Limited Show More