So, when you first put in the battery, it start recording the highs and lows. So, my lowest humidity wise was 32 low humidity so that was pretty pretty pretty dry and the highest was 69. So, guys this is something that you could see also with this one this one was 38 and 57. Compared to the small Brannan Greenhouse Thermometer, the ThermoPro TP50 is capable of measuring a much larger range of temperatures, from -50°C to 70°C, and it can display its readings in either Celsius of Fahrenheit.

The plastic casing is relatively robust, and has a hole cut out in the top that makes the thermometer easy to hang. However, unlike some of the other thermometers featured here, it doesn’t have an official waterproofing rating – rain can get inside if it’s left outdoors in the garden. Nevertheless, it seems to work well in greenhouses without being negatively effected by humidity. Data on screen is clearly laid out and easy to interpret, including arrows to indicate if temp/humidity is rising or falling 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. In terms of accuracy, it generally seems to be correct to ±1°C, so whilst not a professional device, it’s useful for general gardening. The total temperature range available is -50°C to + 70°C, although it can get a little less accurate during very hot summer temperatures. Do not leave exposed to extreme high or low temperatures since this may cause damage to electronic parts and plastics.The High and Low only report as the "Highest" high &"Lowest" low temp and humidity measured since the last reset. You are not able to set High and Low parameters Hygrometers measure the humidity of air or soil. You may want a hygrometer to measure the humidity of the air in a pet’s tank, or perhaps you are completing an experiment that requires a humidity reading. In addition, many people buy a humidity meters like hygrometer for their home to monitor the air quality for health reasons. Whatever reason you have for wanting a hygrometer, you have come to the right place for advice on choosing the best device for you. Calibrate means that you adjust your measuring tool (e.g. thermometer, hygrometer, speedometer, etc.) to give a known value when it's measuring (detecting) that value; you usually do this by adjusting a screw or other mechanism that results in the unit showing a 'reading', or measurement, of that known value on its display or output. This unit does NOT have any calibration adjustment.

For taking basic temperature readings, look for a wireless digital thermometer that shows min/max temperature data as well as the current temperature. Thermometers that show maximum and minimum temperature over a certain period are really useful, as these allow you to see how much temperature variation your plants are experiencing. You can then plan ahead to keep your greenhouse’s temperature more consistent.This thermometer is straight forward to use and comes with 1 x AAA battery included which is all that’s required to start it running. It’s sufficiently accurate if you want a small, easy-read thermometer that offers good value. A hygrometer is an instrument used to measure humidity or moisture in the air in terms of the relative humidity. The humidity readings helps in determining the ambient temperature. It is used in meteorological science and galleries to protect artwork and everyday homes to ensure the best air quality.