Cheap digital hygrometers

[Joss]

Well after concluding that cheap analogue hygrometers are all a pile of shite.. I thought Id try the digital ones off ebay. Im using Bovedas all the time now so dont necessarily need one but got a couple, more out of curiosity really. They were about ?2 each, withfree postage from China! Got 2 different ones to see how they differ.

Been calibrating them with the salt test and am pleasantly surprised that both are reading the same RH with a .1 difference in temperature.

So the reading of 79 would indicate that they are both +4 units above actual RH.. Which will be 75rh inside the container. Was fairly impressed with that really.

[Guinness70]

Good stuff. Replaceable batts?

?●》it is better to be full of whisky then to be full of shit《●?

[Joss]

Yeah they've got those keyfob type batteries

[Guinness70]

Cheers. I'll have to give em a go.
You have a link or name of seller?
?●》it is better to be full of whisky then to be full of shit《●?

[Bob123]

I tried few cheap and they have non linear difference - not 4 degree all time so in my opinion they are almost useless for accurate measure. I compared them with Xikar and with professional hygrometer.
But I am not sure about manufacturer, they are from Dx.com

[Joss]

The item number is 121454139904 but if you search 'digital hygrometer' there are loads on there

[cj121]

Sound like a couple of goers there then Let us know how you go over time ay. Might be worth salt testing again after a short period to see if they give the same readings.

[Joss]

Sound like a couple of goers there then Let us know how you go over time ay. Might be worth salt testing again after a short period to see if they give the same readings.

Yeah I'll give them a go and see how they perform with the Bovedas in the box