| | | | | |
| | Digital Filter Technology | | Yes | Yes | No | Yes |
| | Hypertension Warning System | | Yes | No | Yes | No |
| | No | Yes | No | Yes |
| | 84 readings (42 readings x 2 people) | 21 readings | 180 readings (90 readings x 2 people) | 90 readings |
| | Yes | Yes | Yes | Yes |
| | | | | |
| | Pressure: 0-280mmHG Pulse Rate: 30-160 pulse/min. | Pressure: 0-280mmHG Pulse Rate: 30-160 pulse/min. | Pressure: 0-280mmHG Pulse Rate: 30-160 pulse/min. | Pressure: 0-280mmHG Pulse Rate: 30-160 pulse/min. |
| | Blood Pressure: +/- 3mmHG Pulse Rate: +/- 5% | Blood Pressure: +/- 3mmHG Pulse Rate: +/- 5% | Blood Pressure: +/- 3mmHG Pulse Rate: +/- 5% | Blood Pressure: +/- 3mmHG Pulse Rate: +/- 5% |
| | Standard cuff. Approx. 7-3/4" to 13-1/4" (20cm-34cm). Fits arms up to 15-3/4" | Standard cuff. Approx. 7-3/4" to 13-1/4" (20cm-34cm). Fits arms up to 15-3/4" | Cuffless. Approx. 7-3/4" to 13-1/4" (20cm-34cm). | Standard cuff. Approx. 7-3/4" to 13-1/4" (20cm-34cm). Fits arms up to 15-3/4" |
| | | | | |
| | Digital LCD | Digital LCD | Digital LCD | Digital LCD |
| | Yes | Yes | Yes | Yes |
| | Blood Pressure/Pulse Rate | | Yes | Yes | Yes | Yes |
| | | | | |
| | 50F to 104F 30% to 85% RH | 50F to 104F 30% to 85% RH | 50F to 104F 30% to 85% RH | 50F to 104F 15% to 90% RH |
| | -4F to 140F 10% to 95% RH | -4F to 140F 10% to 95% RH | -4F to 140F 10% to 95% RH | -4F to 140F 10% to 95% RH |
| | Four "AA" batteries (included) | Four "AA" batteries (included) | Four "AA" Alkaline batteries and AC Adaptor (included) | Four "AA" Alkaline batteries (included) |
| | Approx. 500 usages | Approx. 500 usages | Approx. 200 usages | Approx. 500 usages |
| | | | | |
| | Sold separately. Part # EW31225K | No | Yes | Sold separately. Part # EW31095K or included in EW3109ACW model |
| | No | No | No | Storage Pouch |
| | Sold separately. Part # EW3901H | Sold separately. Part # EW3901H | N/A | Sold separately. Part # EW3901H |
| | | | | |
| | 3.7" x 6.9" x 7.0" | 2.8" x 4.4" x 5.7" | 8.7" x 6.1" x 8.3" | 2.0" x 8.3" x 2.0" |
| | 1.17 lbs | 0.63 lbs | 4.9 lbs. (No battery) | 9.2 oz. |