In a nutshell: There isn’t any, and that’s a good thing. It is not the voltage itself that is harmful, but the current that flows through the body. The Shirt Genius measures the voltage drop between the upper arms, which indicates the current flowing through one of the two arms. It is, therefore, irrelevant whether the voltage is high or low. The trigger threshold of the Shirt Genius is typically at a single-digit milliampere level.

The ANGEL React Shirt System recognizes when there is a current flow through the body and a voltage drop between the upper arms. As the circumstances behind an electric incident are many and vary, we cannot guarantee that every single one will be detected.

Working on live systems is subject to a particular set of rules that may not be altered or reduced, even when using a smart textile T-Shirt. You should always try to work following the five safety rules. The Shirt System provides an additional level of safety if a fault occurs.

The fall detection is a combination of free fall with subsequent immobility. If a significant shock occurs, the fall sensor starts recording the fall, integrated into the Clip Genius and the Shirt Genius. The fall sensor detects false alarms by analyzing falls and recognizing whether it is necessary to trigger an alarm or not. In fact, the automatic alarm triggering is only activated if the person remains motionless after the fall, as we then assume a real emergency. Therefore, fall detection is not activated in every fall situation, e.g., when jumping off the ladder and then walking away.

To reliably detect movement, the cell phone would have to be carried on your person at all times. As most users don’t do this, ADRESYS has developed intelligent ANGEL React Systems that can be clipped onto the waistband or fastened to the bright textile shirt.

Smartphones use either the cellular network or a direct data connection such as Wi-Fi. If neither link is available for more than 15 minutes, the smartphone will prompt you to reestablish the link. You can also set a work timer – you can activate this timer before you carry out dangerous work or before you, for example, work in a basement with no reception. If the timer has expired and you do not end the alarm, the rescue chain is automatically informed.

No. Sweating and washing cause moisture in the textile, but we have developed our technology to be waterproof. If the specified care instructions are followed, there will be no functional loss after up to 50 washing cycles. We also use rust-free material, such as stainless steel, for our barbed rivets in the connection plate.

No, Bluetooth® uses several frequencies, so that interference is very unlikely. Only too many Bluetooth® devices in a confined space can lead to reduced performance and short interruptions, which are communicated acoustically.

Up to eight workers can share a Genius, if they have installed the ANGEL React App (Version 2.1.) on their smartphone.

To hand over a Genius, the workers have to do the following:

• Worker 1 goes through the full pairing and registration process
• Worker 2-8 go through a shortened pairing process, entering their own phone number (all other data remains the same)

The Genius always automatically connects to an app it has already been paired with.

This means: if one user closes their ANGEL React app, the app on another user’s smartphone can automatically connect to the Genius.

For the ANGEL React App to work reliably, the following system requirements must be met:

• Operating systems: from Android 7.1.1, from iOS 14 (please note the limitations)
• Bluetooth LE (4.2 or higher)
• Location service (e.g. GPS)
• Internet connection (e.g. WLAN or 3G/LTE/5G)

We support all smartphone models from Android 7.1.1 and iOS from 14 with Bluetooth LE (4.2 or higher). We have explicitly tested the following smartphone models during the development phase:

• Samsung S10e, Samsung S9, Samsung S8, Samsung S7, Samsung S21, Samsung S20, Samsung A51, Samsung A21, Samsung A21S
• iphone 12, iphone 11, iphone 10, iphone 9, iphone 8, iphone 7, iphone 6S, iphone 6SE, iphone 5S
• LG Nexus 5
• One Plus 8
• Google Pixel 5
• Lava X81
• ZTE Blade A512

Special settings must be made for these smartphone models. Please contact our support to make the system settings together.

• Huawei P30 pro
• Huawei P30 lite
• Huawei P20
• Huawei P10

The following smartphone models are not suitable for our ANGEL React App:

• Smartphones phones with Android 6.0.0
• LG K420n
• Cubot KingKong
• Nokia 6.1
• Samsung A3
• Samsung A41
• Vivo Y20
• Samsung A3