Allotment Gardening Advice Help Chat

Growing => Growing in Greenhouses & Polytunnels => Topic started by: shokkyy on April 11, 2012, 17:11

Title: Max/min thermometer in tunnel
Post by: shokkyy on April 11, 2012, 17:11
I've now bought 3 of these wretched things and none of them have worked longer than a few days. The first 2 were battery driven and had a cable that you could run outside to get external temp as well. Both worked fine at first then just stopped working in less than a week - and yes, I did try new batteries. The last one was an old fashioned mercury type with little black bars that stayed behind to record min/max, with a reset button. Again, it worked fine for a few days, laying on my bench. I don't know if it's coincidence, but when I hung it up, as it's supposed to be, the black bars both detached themselves from the main flow and refused to go back again. Is there something about the environment in a tunnel that stops these things working or am I just incredibly unlucky?
Title: Re: Max/min thermometer in tunnel
Post by: mumofstig on April 11, 2012, 17:15
unlucky I got a cheapo one of fleabay and it's been fine. Touch wood  :lol:

It always reads about a degree colder than my ordinary one (which agrees with the local weather station) so I just bear that in mind  :)
Title: Re: Max/min thermometer in tunnel
Post by: shokkyy on April 11, 2012, 17:21
Was that a battery/digital one or an old school mercury type? One of mine (digital) was a Gardman as well, and I always expect them to be decent quality.
Title: Re: Max/min thermometer in tunnel
Post by: mumofstig on April 11, 2012, 17:35
this      cheapo (http://www.ebay.co.uk/itm/Solar-Digital-Min-Max-Window-Thermometer-Greenhouse-/270952467099?pt=UK_Home_Garden_GardenEquipment_HandTools_SM&hash=item3f16068a9b)
Title: Re: Max/min thermometer in tunnel
Post by: shokkyy on April 11, 2012, 17:37
Thanks, I'll give that a go.
Title: Re: Max/min thermometer in tunnel
Post by: JayG on April 11, 2012, 18:54
In the interests of scientific research ( ::)) and trying to be helpful I have just been out to my greenhouse with a magnet and am pleased to report that the max-min bars are magnetic (doesn't mean yours are, but nothing to lose if you've got a magnet!)
Title: Re: Max/min thermometer in tunnel
Post by: shokkyy on April 11, 2012, 19:35
I hadn't thought of that. I don't possess a magnet but I'll see if him indoors has a magnet hidden in his vast collection of boy's toys.
Title: Re: Max/min thermometer in tunnel
Post by: carlrmj on April 11, 2012, 19:54


I was in Wilkinsons today and they had a max/min thermometer.

There were 2 temp gauges one in farenheit and the other celsius

At the bottom there was a digital readout showing max and min temps
 
I think it was about  7.95

Title: Re: Max/min thermometer in tunnel
Post by: A. Fallowfield on April 11, 2012, 20:46


I was in Wilkinsons today and they had a max/min thermometer.

There were 2 temp gauges one in farenheit and the other celsius

At the bottom there was a digital readout showing max and min temps
 
I think it was about  7.95



Don't, you'll be lucky if it lasts a week when the damp gets to it! :mad:
When it packed up I took mine to bits brutally and fiddled with it, now I get the max/min in my front room!
Someone gave me a push button type from the depths of a shed and it's working well! :)
Title: Re: Max/min thermometer in tunnel
Post by: sunshineband on April 14, 2012, 20:30
My old U-shaped mercury filled push button one has been going for years.

Sometimes old types  is best I reckon  :D
Title: Re: Max/min thermometer in tunnel
Post by: Goldfinger on April 14, 2012, 20:42
My old U-shaped mercury filled push button one has been going for years.

Sometimes old types  is best I reckon  :D

+1, had it in the living room to see when the CH thermostat kicked in and out.

And then had it in when we first lit the woodburner a few years ago, went a bit OTT and got the livingroom up to 32 degrees when we had that major winter snowfall!  :blink:

Watching a blizzard in T shirt.  8)
Title: Re: Max/min thermometer in tunnel
Post by: sunshineband on April 14, 2012, 20:56
Watching a blizzard in T shirt.   


What, now????????
Title: Re: Max/min thermometer in tunnel
Post by: Goldfinger on April 14, 2012, 21:02

Whoops!  :blush:

Worded the last bit wrong.....

I mean't that really bad winter we had a few years ago....

'Standing at the front window watching that snowfall in a T shirt....'  ::)