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This Max min Mercury Free Thermometer Records The Maximum And Minimum Temperature Achieved During A Period In Both Clear And Easy To Read C And F, Allowing You To Accurately Monitor Greenhouse Conditions And Both Ends Of The Temperature Scale.the 21cm Tall By 5.5cm Wide Greenhouse Thermometer Comes Complete With A Screw Fixing Point screw Not Supplied And Two Markers Will Clearly Show How Warm Or Cold Conditions Have Been. The Max min Thermometer Will Also Record The Current Temperature And A Quick Press Of The Central Reset Button Will Bring The Markers Instantly Back Into Position. With A Temperature Scale Of 30c To 50c, The Greenhouse Max min Mercury Free Thermometer Is Your Complete Greenhouse Temperature Data Bank!max min Mercury Free Thermometer Measures 21cm H X 5.5cm W X 3cm Dtemperature Scale From 30c To 50c 20f To 120fmercury Freefixing Hole At Top fixings Not Suppliedessential Greenhouse Growing Aidclear, Simple To Read Displaymarkers Record Maximum And Minimum Temperatures Over A Periodcurrent Temperature Also Displayedreset Button Returns Markers To Current Temperature Statusideal For Monitoring Potentially Damaging Overnight Greenhouse Temperatures During Early Season Growinggives An Indication Of High Summer Temperatures Helps With Planning Venting And Shading
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