Features:
The digtal arm blood pressure monitor has big LCD screen.
Can measure automatically, reading accurately and quickly.
Has memory function of 90 groups.
The digtal arm blood pressure monitor is operated by battery, economical and convenient.
Automatic measurement and power-off.  
Automatic pressurization using a micro pump.
Can be used on daily self-examination, very convenient.

Specifications:
ModelJDS-800
Method of measurementNon-invasive, ocsillometric blood pressure defaltion measurement at arm for arm circumference at 22-32 cm
Display range0-300mmHg
Measuring rangeSystolic 50-250 mmHg, diastolic 40-180 mmHg, pulse 40-200 beats/minute
Measuring accuracy+/- 3 mmHg 
Measuring uncertainty+/- 8 mmHg
Sets of Memory30 memory
Operation voltageDC 6V
MCU operation voltage3.3V
Low Batt. WarningAt 4.9V
Low Batt.At 4.5V (LO shown)
Current showing memory!#!lt!*!10mA
Shutdown current!#!lt!*!100μA
Max. auto-pressure295mmHg
Over-votage protection300mmHg
Auto power-off timeMemory mode, no measurement for 30s
ERR mode, no mearurement for 180s

Measurement end,180s

Dimension160mm (L) x 94mm (W) x 65mm (H)
Weight (w/o batt)250g
Cuff sizeArm circumference 22- 32cm
Operating temperature+ 10 C to + 40 C, !#!lt!*!= 85% RH
Storage temperature- 10 C to + 50 C, !#!lt!*!= 85% RH
Power supply4 x 1.5V AA battery (not included)
Battery lifeApprox. 300 times measurements, varied by blood pressure level or inflation pressure
MaterialPlastic
Product sizeApprox. 16 * 9.4 * 6.5cm / 6.3 * 3.7 * 2.6in (L * W * H)
Product weightApprox. 580g / 20.5oz
Package sizeApprox. 16.5 * 9.5 * 12.5cm / 6.5 * 3.7 * 4.9in (L * W * H)
Package weightApprox. 652g /23oz

Notice:
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please consider you mind or not before buying.

Package List:
1 * Blood Pressure Monitor
1 * Air Tube for the health monitor blood pressure monitor
1 * Manual for the arm blood pressure monitor (English)
1 * Storage bag for the sphygmomanometer