Actiwatch 2 Activity monitor

Actiwatch 2

Activity monitor


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Actiwatch 2 is a rugged, reliable, and unobtrusive actigraphy device. It is small and comfortable, making it well-suited for younger or sensitive patients.

Sleep/wake history

Sleep/wake history reliably tracks sleep

Actiwatch models use actigraphy principles to provide sleep schedule variability, sleep quantity, and sleep quality statistics.
Rechargeable battery

Rechargeable battery

Rechargeable battery for reliable long-term operatio
Physical activity monitor

Physical activity monitor for quantifiable activity data

Each Actiwatch model is equipped with a highly sensitive accelerometer. This provides you with activity patterns that help inform and track therapy options and results.
Waterproof to IPX7 standards

Waterproof to IPX7 standards

Waterproof to IPX7 standards for freedom to plan your day
Event marker

Event marker

Event marker records events of significance
Small and unobtrusive design

Small and unobtrusive design

Small and unobtrusive design doesn't attract attention
Ambient light sensor

Ambient light sensor tracks exposure to sunlight

Actiwatch 2 has the ability to record information about the amount and duration of ambient white light illuminance, in units of lux.


Accelerometer Details
Accelerometer Details
  • 0.35 - 7.5 Hz typical
  • Solid-state "Piezo-electric" accelerometer
  • 0.5 - 2 G peak value
  • 0.025 G (a 2 count level)
Sampling Rate
  • 32 Hz
  • 43 mm x 23 mm x 10 mm
Weight (with band)
  • 16 g
Case Material
  • ABS Blend (Biocompatible)
Standard Wrist Band
  • BASF Elastollan 1175A10W (TPU) with titanium buckle - accommodates 7 mm type hospital band
Battery Type
  • Lithium cell (rechargeable at dock)
Logger Battery Life
  • 30 days at 1-minute epoch lengths
  • Non-volatile 1 Mbits
Light Sensor Details
Light Sensor Details
  • Silicon photodiode
  • 10% at 3000 Lux (typical)
Illuminance Range
  • 5 - 100,000 Lux
Wavelength Range
  • 400 - 900 nm
Wavelength Peak Sensitivity
  • 570 nm
Measurement Units
  • Photopic illuminance in Lumens/m2 (Lux)
Environmental Attributes
Environmental Attributes
Moisture Protection
  • Waterproof 1 m for 30 min per IPX7 IEC 60529
Operating Temperature Range
  • 5 to 40 °C
  • Resists dust, water, heat, perspiration and cold
Computer & Communications Dock Attributes
Computer & Communications Dock Attributes
Operating System Compatibility
  • Actiware: Windows 2000, Windows XP or Windows Vista; Actiware CT: Windows 2000, Windows XP Pro, Windows Vista Business or Vista Ultimate
Hardware Platform Personal Computer
  • Pentium II or later
USB Compatibility
  • Version 1.1 or 2.0 full speed
Data Communication Rates
  • 57.6 kbps
Dock Functions
  • Battery charge, device configuration and data retrieval
Charge Mode
  • USB connection or wall current