Table 3.

Cost of sensors.

Sensor	Quantity, n	Unit price (US $)	Total price (US $)	Total/person (n=204) (US $)
OM signal 250 boxes and 1250 garments	250	429	107,250	525.74
Jelly phones	250	138	34,500	169.12
Owl-in-one: Bluetooth data hub and Bluetooth device proximity sensor	261	155	40,455	198.31
Minew beacons (Bluetooth environment data sensors)	139	16	2224	10.90
Fitbit Charge 2	250	124	31,000	151.96
Total	—a	—	215,429	1056

^aNot applicable.