Compare continuous glucose monitors

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Older Monitors

Comparison of Current Continuous Monitors

A continuous monitor reveals short-term trends in the blood sugar as they happen. You can see the direction your blood sugar is taking in the last 1, 3, 6, 9, 12, or 24 hours, depending on what times the monitor offers. Various companies have already released continuous monitors, with more companies developing theirs every day. Significant differences in accuracy can be seen in one individual when two different continuous monitors are worn at the same time.

Companies	Guardian REAL-Time Continuous Glucose Monitoring System	Dexcom SEVEN	MiniMed Paradigm® REAL-Time System	Abbott FreeStyle Navigator®
Availability	FDA approved in June 2006 (monitor) and February 2007 (MiniLink Transmitter) and available for purchase	FDA approved in March, 2006 and available for purchase	FDA approved in March of 2006 and available by prescription for purchase in the U.S.	FDA approved in March of 2008 and available by prescription for purchase in the U.S. in the 2nd Quarter

Price	$1339 for monitor, transmitter, charger, and 4 sensors $35 per sensor	$800 for receiver, case, charger, transmitter $60 per 7 day sensors	$999 in addition to initial pump cost, $35 per 3 day sensor
Weight	2.8 oz	2.9 oz	4 oz
Screen Size	approx 1.8" x 0.75"	1.875" x 1.5"	522/722 screen
Monitor Size (L x W)	3" x 2"	3" x 2.5"	No Monitor, displays on pump	3" x 2.5"
Transmitter/ Sensor Size (LxWxH)	1.64" x 1.4" x 0.37"	1" x 0.75"	2" x 1.5" / 0.75" diameter	2" x 1" (combined)
Sensor Life	3 days	7 days	3 days	5 days
Sensor Canula size	14 mm	13 mm	14 mm	5 mm
Angle of Sensor Insertion	45º	45º	45º	90º
Insertion Device	Sens-serter, manual insertion possible	DexCom SEVEN Applicator	Sens-serter, manual insertion possible	Automatic, comes with sensor
Start-Up Initialization Time	2 hours	2 hours	2 hours	10 hours
Calibration	2 hours after insertion, within next 6 hours after first, then every 12 hours. Will alarm if calibration value not entered.	every 12 hours with OneTouch Ultra cannot be entered manually	2 hours after insertion, within next 6 hours after first, then every 12 hours. Will alarm if calibration value not entered.	Calibrate at 10, 12, 24 and 72 hours after insertion, no calibration for the final 2 days of the 5 day wear
User set alarms on low/high	Yes, 8 different thresholds users can set for different times throughout day and night, different sounds for each alarms, loud backup alarm	Yes, one high, two low (user set limit + 55mg/dl alarm)	Yes, differents sounds for each alarm, loud back up alarm	Yes
Predictive alarms for low/high	Yes, can be set to warn 5-30 minutes before glucose limit has been reached	0	10, 20, 30 minutes	10, 20 or 30 minutes
Alarms for rate of change	Yes, can be set to warn at rates of change from 1.1 mg/dL per minute to 5 mg/dL per minute	0
Displays glucose numbers	Every 5 minutes	Every 5 minutes	Every 5 minutes	Every 1-2 minutes
Displays Directional Trends	Yes, 3, 6, 12, and 24 hour graphs	Yes, displays a 1, 3, or 9 hour glucose graph	Yes, 3 and 24 hour graphs	5 TRU™ Directional Glucose Arrows indicating rate and direction of change
Displays Rate of Change	Yes	no	Yes
Review glucose data?	Yes, last 24 hours	Yes, last 1-9 hours	Yes, last 24 hours	Yes, last 24 hours
Capture events	Yes, user can enter insulin, carbs, BGs, and exercise events	No
Alarms, vibrates, or both	Vibrate, escalating alarm, or both	Alarm or Vibrate, vibrate for low first, then alarm	Vibrate, escalating alarm, or both	Alarm or vibrate
Waterprooof Transmitter	Yes, hot water not suggested	Yes, up to 3 ft for 30 min	Yes, hot water not suggested	Yes, up to 3 ft for 30 min
Transmitter Batteries	Rechargeable, 14 days or more use per change, 1 year expected life, additional transmitter and charger $649	life uknown, non-replaceable, additional transmitter $250	9 months, additional transmitter $500	watch battery, replace monthly
Monitor Batteries	1 AAA	rechargable, every 5 days for 3 hours	1 AAA	2 AAA Alkaline Batteries
Range	6 feet	5 feet	6 feet	10 feet
Snooze Alarm	Yes, High snooze can be set from 5 min to 3 hrs, Low snooze between 5 minutes and 1 hour	No	Yes, both high and low alarms settings differ	Yes, 1 hour silence
BG Monitor	Any	Any	Any	Built in Freestyle Monitor
Computer Software	Medtronic CareLink Personal	DexCom DM Consumer Data Manager	Medtronic CareLink Online	Precision Link Diabetes Data Management Software
Upgrade program	Yes, call 1-800-Minimed for info	Yes, $150 upgrade price	Medtronic Pathway Program
Warranty	1 year on monitor, 6 months on transmitter	12 months for receiver and transmitter	6 months on transmitter, 4 years on pump
Money-back gaurantee	30 day, not for sensors	30 day, not for sensors	30 day, not for sensors

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