What is the lowest fc reading this unit will take? Will it measure as low as 0.02 fc?
335825
We have used this device on almost a daily basis since we examine potential customer sites for our lighting products. We found that the greatest consistent resolution you can get .05 increments reliably as compared to other like devices in the same setting. A good product in our opinion.
1162014
According to the data sheet found at http://www.kidde.com/Documents/900-0121%20sheet.pdf it does meet that spec:"The unit's CO sensor shall be of a fuel cell design and shall meet the sensitivity requirementsof Underwriters Laboratories UL2034 Single and Multiple Station Carbon MonoxideAlarms. The unit shall provide accuracy of +/-20% + 15 parts per million (ppm) when readingCO concentration levels."I don't know what else (if anything) that standard requires.Hope that helps.
1026026
It will do that on the milliVolt scale especially. Set the Range to Volts and the reading will be close to zero.
865519
I just took these readings from my solar charge controllers remote display. It appears to draw about .4 amps on low and .5 on high. I ran it for a while on both settings and it held steady at those readings. It was plugged into a cigarette adapter I'd install in the RV for small load devices.
2075822
It is an AC detection unit. It does not measure DC so polarity of the coil is not important.
237593
I don't think it goes below 30v ac as with most non contact sensor do but I haven't tested it that low. I'll update if I test it that low.
21831
I am not sure. On low we're supposed register it at 100, but I find it is not a true reading. It seems to run hotter on all settings. The more I use mine, the less satisfied I am with this product.
1419463
Im not familiar with thermocouple... But if u are measuring amps (mA) it will surely read. But mili volts - no
58510
Yes, the unit does read in degrees Celsius. There is a switch on the back of the master unit and a switch on the inside of the remote units to change from F to C and back to F.
212106
I recommend that you do what I did. When I first tried to use mine I found it to be off by at least 25 deg. Throw it away it's not worth messing with, then I went to a local restaurant supply and bought an analog thermometer that always works for the same amount. Your experience prove to me that my decision was the right one. Problem solved. David B.
1395907
I have not had any issues, but the DW(Distilled Water) I use reads in the 0 to 9µS range- which would show 0 on the mS range.
1714292
Has anyone measured the actual output DC voltage when this unit is supplying 2.1 amperes of current? If so, what did your volt-meter read?
1949347
I use it to detect bad magnatrons and transisters, and it will show a difference of 1 ohm, the only one I have that will go that low.
471249
I used a short term test like the one from First Alert to validate the readings in my basement and it came out accurate. Make sure that you carefully place the unit because placement can effect the readings. 25 is pretty high but certainly in the range of possible - don't ignore it !
182452
I am sorry but I have been unable to test it because my reason for buying it is snow bound. I am assuming it would be very low because of the nature of solid state electronics. While waiting I could connect it up to a test circuit and measure it. You are correct, it must have some current in order to turn on. I am expecting it to be insignificant in my application.
1639958
Mine appears to do the same thing (in hundredths & thousandths digits) especially when I shake the unit or leads. Goes to steady zero when I touch leads. I don't think this is defect.
626125
The lowest setting below the 200 mark is just a black dot with no numbers beside it. Sorry I couldn't be more helpful.