Sleep Diagnostics

Actiwatch 2

Activity monitor

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


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Sleep/wake history || Full-featured

Sleep/wake history reliably tracks sleep

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

Rechargeable battery for reliable long-term operation

Rechargeable battery for reliable long-term operatio
Physical activity monitor || Full-featured

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 || Comfortable and convenient

Waterproof to IPX7 standards for freedom to plan your day

Waterproof to IPX7 standards for freedom to plan your day
Event marker || Full-featured

Event marker records events of significance

Event marker records events of significance
Small and unobtrusive design || Comfortable and convenient

Small and unobtrusive design doesn't attract attention

Small and unobtrusive design doesn't attract attention
Ambient light sensor || Full-featured

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.

Specifications Show all

Accelerometer Details
Solid-state "Piezo-electric" accelerometer
0.35 - 7.5 Hz typical
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
10% at 3000 Lux (typical)
Silicon photodiode
Illuminance Range
5 - 100,000 Lux
Measurement Units
Photopic illuminance in Lumens/m2 (Lux)
Wavelength Range
400 - 900 nm
Wavelength Peak Sensitivity
570 nm
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
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