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Q & A
に基づいて 2046 お客様の評価
By Marcin M.
January 26, 2018
I used it few times and these are my observations: Pros: 1. comfortable and easy to use 2. cheap 3. Like the feature of continues monitoring when holding the button 4. Laser pointer for the targeting 5. Good packaging and quick delivery Cons: 1. not always accurate, the reading can be affected by the color of the material it is made of In general good for a rough orientation. Worth the money but if you are looking for something more precise you should get ready to pay more than 7 times more (flir or fluke)
January 25, 2018
This thermometer has done the job I bought it for, to find cold spots in our house. I searched our house for draughts prior to getting this item without success but within a few minutes using the GM550 I had identified several cold spots. This thermometer seems to be fairly accurate around room temp. but below freezing point it is a long way out. I took it outside on a frosty morning when my out door thermometer was at -1.2 C. and I was getting readings around -13 C. As the product description says (Measurement Range: Between -50 °C and 550 °C) but (Operating Temperature: Between 0°C and 40°C) maybe the unit would not be accurate as the operating temp was below freezing. I then went to the deep freeze opened the lid and aimed the device in the freezer, I got readings between -35 C and -37 C. When I took items from the freezer and tested them I got reading from -30 to -35 C. I have tested temp in deep freeze and it is showing -18.7 C. I have not had the opportunity to test at high temp yet but did test on boiling kettle aand got reading of 60 C but as this is a polished surface I did not expect an accurate result. So beware of accuracy of this item.
December 3, 2016
My main reason for getting this IR temperature gun was for checking the surface temperatures in my reptile’s vivarium’s (Bearded Dragon, Corn Snake and Geko) and its perfect for this and by far the most accurate and easy method for making these spot check and when setting up new viv’s. It requires one 9v battery which is included, then simply press the trigger and aim the red laser at the surface that you want to read the temperature of, the reading is “live“ whilst the trigger is pressed so the reading on the display will change as you move the red dot to different areas which is great for checking for hot/cold spots on surfaces, then on realising the trigger the current reading is fixed and shown on the display. There are 3 buttons below the display the first one switches the laser pointer on and off, the second switches the measurement between Celsius and Fahrenheit and the third switches the back light on the display on and off. This is a cheap and accurate way of taking temperature measurements from many surfaces, it has so many uses it would be impossible to list them all. Have to add my cats think it’s a great toy and go mad chasing the laser around!
By Lydia Room
September 28, 2017
this laser gun is very easy to use. Non contact,for checking temps is important to us,as we use this device for checking the thermal gradients in our snake vivariums.As our one snake hates interference,and,will nip hard when disturbed,the non contact bit is very useful. The only way this device could be improved,for our use would be if it could read the temps accurately, through the glass vivarium doors.It will read them,but it isn't recommended by the manufacturer's to use through a reflective surface. Overall,we are very pleased,and,can't recommend this enough,does everything you need it to,at a very reasonable price. Also,this laser gun,has a much higher range of temps that it will read,than some other laser guns.
By Richard Alan Horsfield
February 25, 2017
Having difficulties getting a hot water bottle at just the right temperature, so decided to buy this item. Now the temperature can be checked and adjusted as neccessary without the risk of being too hot or cold. A great addition to my arsenal of equipment. I have often wondered what temperature my freezer runs at, now I can check the temp and be reassured it is performing correctly and my food stuff is safe. I imagine there are many more uses for this piece of equipment, as yet to be found. Highly recommended even for a 'bit of fun gift' for the inqusitive amongs us.
January 6, 2017
I agree with the previous reviewer - it feels surprisingly well made, for something so inexpensive. Works well and seems accurate to within a degree or so. The fact that it's portable and instant means that, in effect, it can do the job of a number of thermostats. It came without a battery, but at this price, I'm not complaining. Just make sure you have a 9v matchbox-shaped battery at home for when yours arrives. Interesting factoid: the outside temperature of a long-haired cat is about 2º lower than that of a short-haired cat!
By Chris M
November 13, 2016
I bought this primarily to use in the kitchen, but also partly just out of curiosity as to how good it could actually be. I’ve found it to be very accurate within the temperature range I’ve used it in (around 20-200°C) when compared with my independently calibrated thermocouple. You just point and pull the trigger and you get the temperature reading to within 0.1°C on the screen. The screen has a backlight which can be turned on or off as can the laser guide. It’s worth pointing out that the temperature reading is for a circle of an increasing diameter depending on the distance you are from the object you're taking the reading from. This is at a ratio of roughly 12:1, so if you’re 90cm from an object then the temperature reading you receive is for a 7.5cm diameter circle, centred on the red laser point. I’ve found it great for checking oven/pan temperatures, the heat of food before serving and also really useful for checking the temperature of sugar when making caramel, nougat and marshmallows. One thing that I have found is that if you’re using this in the kitchen and steam gets onto the lens of the thermometer then the readings you get are not very accurate, not ideal if you’re trying to heat a ban of water to a specific temperature, but in the same way it’s not a big problem as it’s easy enough to give the lens a quick wipe. Overall I have to say that I'm very happy with this thermometer, it’s very well built and accurate, I’d thought it was going to be a bit of a gimmick when I bought it, but instead I now find myself using it all the time and relying on it.
November 8, 2016
The build on this thermometer is surprisingly good. The device is well constructed and operates well. The plastic has a silky textured feel, and all of the panels fit together without gaps, or sharp seams. (a surprise for such a cheap model!) It measures temperatures as accurately as it states, and comes with both a battery and a belt holder. The laser is a nice touch, but you need to remember when taking a reading that the heat sensor is BELOW the red dot, not directly on it. You might think this is a bad design, but again - good design shines through. The laser beam is not angled downward into the heat sensors line of sight, not because it would change the reading, but because the laser-to-sensor offset would depend on how far away the sensor was from the item being measures. It's much easier to keep the laser dot/sensing area the same distance apart, and then it's constant no matter how far from the item being sensed is. All together a great device, and an even better price!
October 30, 2016
I got this to measure the temps of Servers and other electronics just as a general idea when the temp sensors aren't working. So far I've measured everything (and everyone) at home and at the office (including our bunny) Some random things I found it is quite accurate on include, water, oil, food, bunnies, people, radiators, lights, car parts, the person who looked at me funny in Tesco, and my Boss. I have yet to use it on a computer. The beeping when it scans is annoying the other half, any way to turn it off?
By John Williams
October 14, 2016
It's certainly very simple to use, and appears to work well, a little red dot appears on the surface of what you point it at, and it will tell you the temperature at that point. I haven't yet thought of a way of testing it's accuracy objectively, but if it is internally consistent, it will serve my purposes. Also, you can play sniper games with your friends :-) This looks a bit like "if Stanley made stun guns". It's black and orange, like so many tools, and has a rubberised feel to it. There are only two moving parts, the battery fits easily into the "handle" of the gun, with a folding piece, which becomes the handle, so unlikely to fall open, and the "trigger", which operates smoothly. So, generally I'm giving it a qualified 5. I don't know how accurate it is, but I can't fault it other wise.
By J. Perry
October 6, 2016
Original Comments I've been called cold blooded before but I'm apparently 27.9C with this device when a human body is normally 37C. In fact all temperatures seem to be up to 10C low I need to decide by the end of today whether or not to accept this gross inaccuracy. Update 16 Oct 15 Since receiving a comment from Mike about core body temperature, I've updated the rating to 5* as I believe I was probably wrong with my initial assessment. After further testing I think the device is more accurate than I first thought, and for the price it is excellent value for money. I will not be using it for absolute temperature measurement, but instead I'll be measuring temperature differentials.
By D. BLAIKIE
September 28, 2016
This IR Thermometer is a really cool gadget thats genuinely useful. I brew beer. Everything has to be sterilised to avoid unwanted infection. The ability to check the temperature of anything without touching is superb. This gadget would have cost hundreds of pounds 10 years ago and been unaffordable in the domestic environment. Today its a seriously affordable useful kitchen accessory with uses that go well beyond brewing beer. The most useful application is checking the temperature of a liquid being heated in the microwave, without touching.
By alex w
September 14, 2016
Taking temperature of fridges / freezers and display units for health and safety forms is so quick with this. Also if you turn off the laser is becomes a baby forehead thermometer £50 usually. It has also been used to see if something is too hot to handle a few times, see where hot spots are in the ovens. See which oven is hottest and find out exact temps in locations so they can be replicated elsewhere for consistent cooking. I have also mesured the babies bathwater with this. Soo useful. Gives same temps as a more expensive probe but quicker. Can only measure surface temp so a probe will still be needed. For everything else there is this
September 4, 2016
While it worked it was accurate within a couple of degrees / percent as specified. As expected that depends on the emissivity of the surface you are measuring though black tape on a shiny surfaces helps. (My furiously boiling metallic kettle then read 100C.) The unit failed after 6 months and now just says "Err". I am replacing it with a unit with adjustable emissivity settings such as the GM700 or GM900. I was probably unlucky with the failure. If you don't understand emissivity then you will have equal problems with any other IR thermometer. (I disregarded the failure for my star rating)
September 3, 2016
I bought it for fun and it is fun. I spent a few minutes measuring around the room. I was interested to find that the outside wall was cooler than the others and I found a real use within minutes, the temperature of the top of our Aga which had scorched something left on it. So I am pleased that I have it, although I have nothing planned for it. I offered to measure the outside temperature of a joint my wife was cooking, but usually it is the inside temp you need. Thoroughly recommended, and occasionally essential, but always fun.
By W Moule
August 25, 2016
My dog goes nuts for this. If it is chucking it down with rain, the dog won't go for a walk. A quick out for a pee then back she drags me. Then she is full of energy and bouncing around. So one day I stumbled on this, as an exercise method for the dog. I throw some blankets on the floor. Set to laser and point it into the blankets. The dog tries to catch the red dot. It is hysterically funny to watch. When she is panting I stop. She then sleeps for hours. Win! Oh yeah it is really good as a thermometer too.
By Dr. Jp Haxell
August 17, 2016
Great product and am delighted. Clear easy read screen. The laser can be used to "sight" the target area you are measuring. The manual that accompanies it clearly explains the various factors or parameters that affect all non-contact IR thermometers. My uses are mainly comparative (checking radiators etc) and therefore I have not attempted to calibrate it against a reference but as far as I can see , the readings are within a °C or so . It does the job and is MUCH better than another make that I used to have. Easier to use, clear screen etc.
March 10, 2016
Good a giving a sense of where cold spots and warm spots are in a room or a house; very helpful in identifying sources of cold or of heat loss. One perhaps lesser concern is that the useful red laser dot/pointer may not be aimed at exactly the spot where the device takes its temperature reading. With the red dot on / aimed at a 15mm warm hot water pipe, I was getting the temperature from the wall behind it rather than from the pipe. The solution was to move the red dot around (maybe 1cm away from the pipe) until the higher temperature came up on the read out. Its still a great device for the price. DMK
By Preston & Teneal
November 19, 2015
I've never used a non-contact thermometer before and hadn't really been aware of the technology behind such a device. The GM550 was purchased to assist in balancing my central heating radiators and, while I'm not in a position to comment on its definitive accuracy, I have to say that I am mightily impressed by its sensitivity. When scanning across the curved width of a hot 10mm pipe (at necessarily close range) the readings can tend to fluctuate quite noticeably, which means that it's necessary to keep a close eye on the changing results in order to determine the maximum; unless you have a very steady hand, this probably won't be the same reading you get on releasing the trigger. Once you get the hang of it, the process becomes quite intuitive and I have to confess (with the embarrassment of someone who probably needs to get out more) I've really enjoyed using the unit. It has certainly helped me to achieve a pleasing result with the radiators - and for a very modest outlay.
By Andrew Firth
October 11, 2015
I have given this Item 4 stars as it is ideal for the use to which I am putting it however I am unsure as to its accuracy. I bought the Item to measure the inside temperature of a wood fired pizza oven so that I can gauge the temperature for cooking pizza, roasting meat, andf baking bread all at different temperatures. I only need an accuracy of +/- 20 to 30 deg and the temp range of up to 550 deg is plenty. This it achieves no problem. If you wanted really good accuracy, +/- 1 to 2 deg then I am not sure how well it would cope. It also seems to be quite sensitive to the distance from the surface being measured as well. It arrived on time and considering its price it feels well made and sturdy. It really feels like it should cost a lot more.