Forehead Thermometers – Are They Safe?

No-contact forehead thermometers measure the temperature of the body based on the level of thermal radiation being emitted by the skin. In theory they measure temperature from a distance to reduce the transmission of any infection. However, given their unreliability are the risks of damage to the eyes and pineal gland really worth it?

Otherwise known as infrared (IR) thermometers, pyrometers, laser thermometers, non-contact thermometers, or temperature guns, these devices are very popular at the moment because they can be used at a distance. Teachers and professionals offering services such as osteopathy are using them to read the body temperature of adults and children to detect fevers before they are admitted to the premises.

The thermometer detects body temperature by measuring the infrared energy being emitted by the skin on the forehead. A lens narrowly focuses the infrared energy coming off the human body on to a detector in the device. The device converts this heat energy into an electrical signal which shows the unit of temperature on a display screen.


A standard infrared thermometer absorbs infrared but doesn’t emit it, so from that perspective they are safe. The problem with safety comes from laser thermometers, which emit a beam of light to highlight the area of the object being assessed to ensure accuracy. This beam is categorised as a Class II laser which emit visible light below one milliwatt and can be sold as ‘pointers’ used to direct attention to information on smart boards or white boards in lectures. Although they are generally classed as being safe, they can damage the retina if you stare into the beam.

Lasers produce an intense beam of light which can cause laser radiation in the form of thermal tissue damage. The dangers increase the closer you are to the laser the more serious the injury potential.

This laser beam would therefore be extremely harmful if accidentally pointed at the eyes causing severe damage or blinding. The laser beam is a particular issue for children who often move around. In these cases safety goggles are recommended to protect the eyes from accidental damage.

Third Eye / Pineal Gland

If lasers have the potential to damage eye-sight I wonder what the effect will be on the third-eye and its connection to the pineal gland. The third eye sits in the middle of the forehead, above the nose, which is the most popular place for infrared thermometer readings. The pineal gland is situated directly behind the forehead between the two hemispheres, so I wonder if pointing a laser at the third eye will also cause damage to the pineal gland?

Class II lasers are categorised as being ‘relatively weak’ and ‘normally would not harm an eye unless a person deliberately stared into the beam’. However, if the beam is pointed at the third eye for targeting purposes it may be on the forehead long enough to cause damage, as this is similar to staring into the beam with our eyes.

Scientists have discovered that the pineal gland is a light-sensing organ because it has photoreceptor cells, rods and cones, which strongly resemble those in the retina of the eye.

Dr. Klein has ‘noted that the photoreceptor cells of the retina strongly resemble the cells of the pineal gland and that the pineal cells of sub-mammals (such as fish, frogs and birds) detect light’.

The similarity of the tissue in the pineal gland to the retina raises the question of how it is is affected by laser beams. Given that lasers affect the eyes I am not allowing my children to have any temperature guns pointed at their foreheads. I am asking for the wrist to be used instead and this is being accepted by the school.


The accuracy of the reading depends on the environment in which they are used and the distance from the forehead. They are usually accurate to around +/- 1 or 2 degrees C which is a big difference when you are assessing the presence of a fever.

The UKs National Institue for Health and Care Excellence (NICE) has given forehead thermometers a ‘Do Not Do Recomendation’ warning:

Forehead chemical thermometers are unreliable and should not be used by healthcare professionals.

“These devices are notoriously not accurate and reliable,” Dr. James Lawler, a medical expert at the University of Nebraska’s Global Center for Health Security, told The New York Times. “Some of it is quite frankly for show.”

Crandall’s team found that forehead readings were unreliable indicators of core body temperature.

My feeling is that because the readings are unreliable the use of these devices is not worth the possible risk to the third eye.

Other Issues

Forehead thermometers can potentially disrupt the circadian rhythm and the production of melatonin which isn’t just a sleep hormone but also a potent immune system modulator.

Psychologically it just isn’t right to point anything that resembles a gun to the head.


Given the the virus was made in a lab and failed in its effectiveness to at culling humanity down to the levels dictated by the Georgia Guidestones, the pandemic had to be faked with false statistics and media fear. I wonder if the use of temperature guns is a deliberate attempt to shut down our psychic skills to keep us from ascending out of matrix control?

22 thoughts on “Forehead Thermometers – Are They Safe?

  1. Thank you. I am on a quest to gather as much information on thermal laser beams and its penetration into the pineal gland. You are the first article after 2 hours that has mentioned the pineal gland. Class II laser is the first identifiable factor that I will use in matching with my other list of radiation grades and categories of classification. Again thank you.

    Liked by 1 person

  2. I realize this Coronahoax was preordained and whatnot however I remain skeptical that a $30 laser that’s only on some of the thermometers can penetrate inches of bone and brain tissue to do any significant damage to your pineal gland. Wasn’t aware of the wrist option though, so thank you.


  3. Thank you for the above explanation in clearing doubts regarding the remote possibility of the damaging effects of NCIT on the forehead (eye & pineal gland) if it were accidentally pointed in the wrong direction for a period of time.
    Do all NCIT’s have a laser component for target accuracy?
    Without a laser component, is the NCIT absolutely harmless?


  4. Thank-you for your article. May i know what type of thermometers you recommend? I didnt know that lasers where part of those gun thermometers. Is that stated that anywhere on the packaging? Recently, in Singapore, some shops have specified that measuring temperature on the wrist is not allowed, so it has to be forehead. This I find, very disturbing especially when i read that taking the temperature on the wrist is more accurate than the forehead.
    I feel that their agenda is exactly as what you have mentioned in your last statement. So, i intend to bring my own thermometer instead. Would appreciate your advice on the type i need to look for. Thank-you !


    1. I have an ear thermometer which I use at home on my own children. I would take this to school each morning and perform the temperature check myself if forehead testing was a requirement. I hope this helps. Sending love to you.


      1. I just told the receptionist at the doctors to not put that temperature gun to my brain as it damages the glands. I put my wrist out and told her it’s more accurate. She was a bit perturbed about this and took reading which she said was not accurate as it was too low, 37.5. She left me alone though and I sat down. I must be one of those one in a million who question the so called professional bulldozer that thinks it knows better.


  5. I just refused the forehead temp laser at the dental office because I had previously read a similar “caution” on the pineal gland being the target. Better safe than sorry in these horrible times.


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