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***This website is
voted one of the
information on
Heart Rate
Variability (HRV),
Heartbeats, and
Autonomic Nervous
System (ANS)
You are at the official
site of
ANSWatch - a
multi-functional wrist
Frequently Asked Questions (FAQ)
13. What to do when I get an error message on "weak pulse signals"?

  • Incorrect wearing positions can cause weak pulse signals; Re-wear (see “Wearing
    procedure“ in the User's Manual and re-test (also see figures below)

  • Occasionally, some patients do exhibit very weak pulses or rapid heartbeats (re-
    wearing and re-testing still fails); It is advisable to allow these patients to calm
    down for a re-test
Back to FAQ
Figure: Proper wearing position

(1) Correct wearing (device centered)
(2) Incorrect wearing (device leaned to left)
(3) Correct wearing (cuff at palm edge)
(4) Incorrect wearing (cuff away from palm)

Note: always pull the cuff tight and do not
leave any space between wrist and cuff.  
This is especially important if the patient's
wrist is small and thin.
More Resources

(professionals and
individuals) for
experience sharing and
in-depth discussions at  
(click to enter)
Do you have     
- are you monitoring   
- are you taking
prescription drugs?
- are you aware of drug
side effects on ANS?
- self-improvement tips
Read more......
Feeling dizzy      
or even fainted?
- are you low in blood
pressure or heart rate?
- are you taking
prescription drugs?
- You may experience
Baroreflex failure
Read more......
Irregular heartbeats?
- often noticing abnormal
heartbeats (missing,
uneven, or super-fast)?
- Yo might have cardiac
- Most sudden death
events are preceded by
irregular heartbeats
Read more......
Mitral Valve Prolapse?
- Mitral valve is the
bicuspid valve between left
atrium and ventricle
- If mitral valve is not
closed properly (called
mitral valve prolapse
MVP), the blood may
backflow during pumping
- there is a strong
connection between panic
attackes and MVP
- How to detect it?
Read more......
Am I having   
- autonomic nervous
system works to fine tune
body conditions depending
on physiological needs
- ANS consists of two
branches: sympathetic and
- do you have balanced
- what are the symptoms of
Read more......