iOS devices are experiencing module calibration issues. The new update (with fix) will hit the App Store in week 38. Apologies for the inconvenience. 

E-MovementLogo

E-Movement

Product information E-Movement

Technical data
Colour
White
Weight
136 grams
Connectivity
Bluetooth
Voltage
3 Volt
Type of battery
2x AA
Battery life
2 years *)
Size
100 x 100 x 35 mm
Maximum linkable sensors
10 pieces
Signal interval
As soon as motion is detected

*) In general, the batteries last for 2 years. Always take spare batteries with you.