Greenhouses can get pretty hot in the summer months, so you should never put your greenhouse thermometer in direct sunlight, or you will get a false reading of how warm it actually is in there. In terms of accuracy, it seems to generally perform well as both a temperature and humidity gauge for non-professional use. It measures temperature in increments of one decimal place and the manufacturers state that it is accurate to ±1°C. Now that you know which tool to get, I will tell you where is the best spot for a greenhouse thermometer and how to measure a temperature in a greenhouse. Where to put a thermometer in a greenhouse? I recommend a digital thermometer over a traditional analogue model . The displays are clearer and easier to read and interpret. You may wish to look for a thermometer that doubles up as a hygrometer (measuring humidity as well as temperature). These give a broader overview of growing conditions. So if you want to find plant temperature or need a soil thermometer with accurate readings on your plant’s surface, then infrared thermometers are for you. Our Verdict

There are options to either hang the monitor, or prop it up on its own stand. Therefore, you can easily move it around and keep it on any surface, including shelves in the greenhouse. If you wish to return your item to Robert Dyas, you can do so by one of the following methods: 1. Request a Collection via Robert Dyas Customer Services The best position is at mid height on the wall, away from doors and windows and out of the brightest sunlight, to get the best average temperature inside.Mercury Thermometers: These are traditional thermometers that use mercury to measure the temperature. They are accurate and can be left in the greenhouse for long periods of time. However, they can be difficult to read and are not as safe as digital thermometers.

Digital or Traditional?! Wireless or Wired? Do I need to buy a thermometer separately from hygrometer or just get a multi tool? Traditional Greenhouse Thermometer Greenhouse – Find out what the temperature drops to through night and how hot it gets during the day. In terms of accuracy which is (+/-1 F and +/- 2-3% RH) I prefer something a little bit higher (the next product). Overall this device has a good performance. A digital type is pretty fail safe; you just read the numbers and that’s your temperature reading (just make sure that you have set it to either Celcius or Farenheit so you don’t over or underestimate your temperature!) The Max-Min Greenhouse Thermometer is a wireless thermometer compatible with most climate controllers. It has a temperature range of -58 to 158 degrees Fahrenheit and can read humidity levels up to 99%. It has a transmission range of up to 300 feet and uses two AAA batteries.The best advantage of the outdoor/indoor thermometer is the ability to measure the temperature outside without you leaving the house. Also, its function is not only limited to the use in the garden and greenhouse. Some max/min thermometers will automatically reset after 24 hours, whilst others will need to be manually reset when required. Unlike some of the units featured on this list, this Brannan thermometer doesn’t measure humidity, but it does still display the maximum and minimum temperatures. These are easy to read, displayed in numbers that are the same size as those displaying the current temperature. Resetting the max and min temperatures needs to be done manually, using a small button on the side of the unit.

Keeping a close eye on the temperature inside your greenhouse is vital for the health of the plants. Certain plants require different temperatures to flourish, and if the greenhouse is too hot or too cold, they will struggle to carry out necessary processes like photosynthesis. For those who prefer digital, this type can be easily reset by a push button and can be much clearer and easier to read than the analogue models.

My Top Recommended Greenhouse Thermometers

Alright, so how do you know that your thermometer takes the cake? Simple, when everyone refers to it as a weather station. If there’s one brand that really goes all out when creating their products, it would have to be Prem-I-Air. Let’s just admit that the Prem-I-Air Digital Weather Station Thermometer is definitely the sleekest and most advanced looking thermometer on our list. But does it perform nearly as great as it looks?

If you are looking for a cheap version this tool is pretty awesome. The temperature range is from – 4 to 158 degrees F (can be switched to C) and from 1 to 99 per cent. A weatherproof ‘IP’ rating can also be helpful to look out for . Given that greenhouse thermometers will be used in damp conditions, an IP rating of IPX5 can ensure there’s no water ingress. Without an IP rating it’s hard to know exactly how watertight something is. Not only does adding more warmth in your greenhouse help create the ideal temperature for plant growth, but it also helps counteract an array of common issues such as poor or deteriorated insulation on the walls. Now that we’ve established that a heater can help extend your growing season way into even the coldest months, how do you make sure that you maintain just the right temperatures? It is a sensible idea to keep a record of the temperature in your greenhouse early in the morning, mid afternoon and again in the evening, so you can work out when to open vents to allow cool air in, and when it’s best to shut it up to keep the heat in. Q: Where to buy a greenhouse thermometer?Thermometers come in two varieties: traditional and Wireless models. Traditional thermometers are the more straightforward analog liquid or big numbers for readings. They are used to measure the temperature of a greenhouse, and they typically do not have any other features. This is an excellent affordable option when starting. Wired Indoor/Outdoor Thermometers And Hygrometers