When pacemakers are installed, most doctors warn patients
to stay away from electric, magnetic field (EMF), and high frequency
(RF) sources. However, EMF and RF are invisible and today’s life
is full of electrical appliances. How to know when to avoid electrical
interfer-ence is a bothersome matter for the pacemaker patients. Osun’s
Pace-alert addresses this issue.
Osun’s Pace-alert is the first that detects AC electrical, high
frequency, and AC magnetic fields and alarms when the field strength
is beyond the safety threshold. The threshold was set up based on pacemaker
manufacturer’s specifications and left enough safety margin to
give early warning before the sources actually start interfering the
The Pace-alert has four light-emitting diodes (LEDs) to indicate the
status of the unit. The lit green LED shows the battery is on. The three
red LEDs represent alarms for electrical (E), high frequency (RF), and
magnetic (M) fields respectively, and will be on individually or jointly
when one or more sources are stronger than the thresholds.
The unit is very easy to use, and does not require a technical background.
court affidavit dated June 14, 2000, an Xcel official agreed
that, when electric fields equal or exceed 1 kV/m (which is common
near power lines), "EMF can interfere with pacemakers." The
official then took care to note this effect was entirely separate
from EMF's cancer-causing potential. "The EMF described
above is specifically related to those external electric fields
that could potential interfere with the pacemaker's ability to
sense normal electrical activity in the heart. The effect described
above is different from other health effects of EMF exposure
previously described in published scientific studies which examine
the risk of cancer and other adverse effects on human health
or reproducible biological effects."
paper reports in a January 17, 2001, article, an Xcel official,
referring to the association between EMF and cancer, concedes
that "...The issue is still open." The official adds, "And
I think we still need additional research and an attempt to
look at higher exposures, which has not been done in the past."
For AC Electrical fields, alarm threshold is 4 KV/m., calibrated at 60
Hz. Frequency range is from 30 Hz to 5 KHz.
For RF, 500 KHz to 5.5 GHz, alarm threshold is 100 V/m (2.65 mW/cm2),
calibrated at 2.45 GHz.
For Magnetic fields, alarm threshold is 1.5 Gauss, calibrated at 60 Hz.
Frequency range is from 30 Hz to 5 KHz.
Unit is powered by a 9V battery. Current drain is about 30mA without
1. Slide the button at the right side up to turn the device on. The green
LED should be on. If no light is on, check the battery.
2. Use the unit to test all the electrical devices in your environment
to make sure you are safe at your home and in your office. Leave the
unit on when you go to new places.
3. Turn the switch off after use. This will prolong the battery life.
Power consumption and battery
Please pay attention to the polarity of the battery when installing it.
Alkaline 9V battery will last more than 20 hours of continuous use,
but a rechargeable battery will only last about 9 hours. It is strongly
suggest that you take one extra battery with you when you are on a
trip for safety purposes.
Strong EMF Sources
Strong EMF sources in our environment highly depend on what you do, where
you go, and how you live. For example, if you live in downtown of a
big city you may encounter many sources; if you are an electrician
or welder then you definitely get close to electrical equipment more
than other people. There are some common sources you could use to check
the unit from time to time, probably once a month, to see if it works
1. On the door seal of microwave ovens.
2. Less than 1 inch from the AC/DC adaptor used for the answering machine,
CD player, or other small appliances.
When you run the test once the alarm goes off, and you know the unit
is working then walk away from it. We do not recommend you stay near
the source for a long period of time.
Size: 2.25"x5.25"x1". Weight: 5 oz. Made