The smart blood pressure monitor for the wrist

The Geratherm® active control is a wrist blood pressure monitor of the latest generation. It has a lithium polymer battery, like its big brother the active control+, and is therefore easy to recharge. With normal use of three measurements a day, you can measure blood pressure for around 15 days with one battery charge. In order to be able to carry out a clean measurement, the wrist should be at heart level during the measurement. The built-in "position control" shows the user the correct position and only then starts the measurement.

Important documents

Position Control

The device shows you the correct position for the measurement and only starts it once this has been taken.

Small & light

The device is particularly suitable for traveling and on the go.

Built-in rechargeable battery

Save battery costs and protect the environment.

Technische Daten

Measuring range 20 mmHg - 299 mmHg
Measurement accuracy ±3 mm Hg (blood pressure)
Messverfahren Oscillometric method
Intended purpose Determination of systolic and diastolic blood pressure and heart rate
power supply integrated lithium polymer battery
Cuff size 13,5 - 21,5 cm
Weigh ca. 104 g
Dimensions ca. 84 mm x 70 mm x 40 mm
Scope of delivery Device, cuff, USB cable, storage pouch
Please refer to the instructions for use for full technical data.

Questions and answers

Yes, the Geratherm® active control displays this. But be careful, the display indicates that a pulse irregularity as a result of an irregular heartbeat was detected during the measurement. This is usually not a cause for concern. However, if this symbol appears frequently, we recommend that you seek medical advice.

An irregular heartbeat is detected when the heart rhythm fluctuates while the device measures systolic and diastolic blood pressure. With every measurement the device records the heartbeat intervals and calculates the mean value. If there are major irregularities, the symbol appears when the measurement results are displayed for irregular heartbeat.

Major irregularities mean: There are two or more pulse intervals where the difference between each interval and the mean is more than 25% of the mean or four or more pulse intervals where the difference between each interval and the mean differs by more than 15% from the mean appears on the display shows the irregular heartbeat symbol.

No, the battery of the Geratherm® active control is a built-in rechargeable lithium polymer battery. Please do not try to disassemble or force open the blood pressure monitor by yourself or by unauthorized service personnel.


No, the Geratherm® active control cannot be operated with a power pack because it has its own battery.


The measurement can be taken on the left as well as on the right arm. However, further measurements should always be taken on the same arm. Preferably on the arm where the higher blood pressure is to be measured.

Individual blood pressure changes several times a day. It is influenced by a wide variety of factors. Therefore, please make the measurements under the same conditions.


Please do not use this device if you are allergic to polyester, nylon or plastic.

Before using the device by pregnant women, consult a doctor and assess the suitability of the measuring method. In some cases there may be deviations in measurement. Pregnant women are therefore recommended to have regular check measurements carried out by their doctor, since the clinical validation was not carried out with pregnant women.

To clean the case, use a cloth dampened with water or neutral detergent, and then wipe dry. Avoid thinners, petrol and other aggressive cleaning agents.