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. 2014 Apr 10;8(4):e2654. doi: 10.1371/journal.pntd.0002654

Table 3. Cost comparison between previous PDA system and LINKS.

Earlier, PDA-based system Cost LINKS System (smartphone/tablet) Cost
Data collection * HP iPAQ 211 PDA - $200 USD Android smartphone $200 USD
* Compact Flash GPS $30 USD
* Secure Digital $20 USD
* Laptop $300 USD
Data transmission to central server Wired Internet connection following synchronization to laptop $0 Cellular data service or Wi-Fi connect $5–$10/month/phone ($0 if Wi-Fi used)
Average equipment cost per project (assumes 5 data collectors) $4,000 $1,000
Central server Microsoft Windows 2000 running Microsoft SQL Server 5.0 $10,000 USD software and hardware Amazon Elastic Cloud Ubuntu running all open source software $6,000 USD/year
Typical number of days needed for training 5 2
Replacement equipment Shipped from central office Locally procured
Training time (per diem costs) 5 days ∼$5,000 USD 2 days ∼$2,000 USD
Redeployment Equipment needed to be shipped back to central office for reprogramming and software installation before shipping to next project site ∼$1,000 USD Ship directly to next project site ∼$500 USD