Does the device need batteries? What kind?
293463
That is a good question. I just had to check and see. It seems like there is no place for the batteries, I can't get the back open. Sorry, can't answer your question.
293464
No this does not use batteries (not that I can tell anyway). Works well to test moisture, light & ph.
293465
I had to check. No battery. There is a small square on the front--maybe solar?
1673303
No. Batteries only. Works very well, but you'll need to use good batteries with this. I used cheap dollar store brand batteries first, and they didn't last very long.
2024458
Yes it uses batteries or you can plug it in (if you get all that come with it.) see the other reviews. I was apparently lucky to get both lol
458505
i hesitated a bit after seeing reginald goodman's answer. mine was powered with the USB for the conversion operation (so is the much bigger one i bought elsewhere. batteries are not necessary), but i THINK i remember seeing a battery compartment because you can carry this thing around with you and the batteries may become necessary then.
1345032
Yes, it needs two AAA batteries (either alkaline or better rechargeable). It will not work without batteries.
226773
It always need to be plugged! the device does not have an internal battery, but it works great!
1607379
There is no battery. The unit gets its power from the screw in bulb socket. This device works pretty well.
214870
Don, sorry forgot to say I didn't have to put in battery, and I've looked to see if any opening for one, I don't see it. So I assume just usb is sufficient. Hope that helps.
288755
I've had mine for almost a year and it works fine. But I didn't realize it needed batteries till I got it. Not sure if this helps at all, but I hope it starts working.
2001039
yes. I don't have it in front of me right now but it uses the small ones, like AA or AAA. I don't think it came with batteries, but it does require them.
863225
This item does not include batteries...you have to purchase them separately.
799748
The product I have does not require any batteries, maybe if there is one to purchase with a 'light' added it may need batteries, however the stand alone needs none!
320821
The battery required for this device to work is a 9V battery. Any brand is okay
1915959
No batteries are required. It plugs in and charges. The charge lasts about 6-8 hours depending on the volume.
1609088
No batteries. This is not an amplified device so therefore no batteries are used.
772870
Yes it does need batteries. I gave this to my grandson about a year ago and I can't remember what type of batteries it takes but he loved it.
1586284
No. Doesnt take any batteries and is lousily put together. Design (Looks) is great though. Get a wifi-compatible device