Temperature measurement

Check the temperatures in your sugar beet or potato clamp and minimize storage losses! You need to know that your clamp isn’t too hot or cold. Otherwise, reduction of the sugar content of sugar beets occurs, and potatoes lose weight and quality. You are risking large sums when instead of knowing the temperature, assuming that it probably does not mean greater storage losses than you can accept. High or low temperature means that the clamp must be vented, or covered with more cover material. Measurements takes place every hour and uploads to the Internet via GSM network. They can then be viewed via a computer or smart phone.

With our temperature measuring rods you easy control temperature in your clamp online.

You can order via phone +46 46-288 45 20 or email. You are most welcome to call or ask questions. Watch pictures of the equipment in our brochure and fact sheet written in Swedish (pdf).

You easily connect several measuring rods with quick connectors. The rod has a sensor positioned at the tip. We recommend a maximum of 100 m of cable, ie with six rods you monitor easily 120 meter clamp, with 20 meters between each rod. If you put sensors 20 cm into the clamp from the side, you know if the coverage you have is enough. Good to know when the temperature drops, and you are considering to add more straw. Various examples of how to place and use measuring rods and temperature sensors are available in our instruction (pdf).
You can also insert rods into various clamps, and let it sit there all season, and then move the base unit between them, when you want to measure the temperature.

Temperature measurement rod in potato clamp.

Temperature measurement rod in potato clamp.

The rods can also be used to measure temperature in beet roots, carrots, silage, grain and hay where you want to be sure that high temperature does not mean destroyed storage. Or for peat, wood chips, compost or waste where high temperature may involve spontaneous combustion. Contact us if you want long rods or other special adaptations. Each base unit can measure up to 10 rods, and up to 100 m cable.

In order to utilize the base unit optimally, you can also use it to measure soil moisture in spring and summer. Read more about soil moisture measurement.

Part Price euro
Base unit with solar cell and rechargable battery 700
1 measuring rod á 1,5 meter. 65
20 m branch cable. 75
5 m branch cable. 50
Temperature sensor, 2 m cable, air/ground/water. 50
Mounting rod 50 cm. 10
Air humidity sensor, incl temperature sensor, mounted in base unit. 60

Price
Start kit: Base unit, mounting stick, measuring rod: 775 euro
Expansion kit: Measuring rod, 20 m branch cable: 135 euro (add max ten)
Beet root kit, example: Base unit, mounting rod, six pcs temperatur sensors, five pcs branch cable á 5 m: 960 euro
Wireless, example: Five start kits, measuring at five different positions without cable: 3.100 euro Discount 20%!
All prices are excluding VAT.

Deliverance
The equipment is sent as package against fee, or can be picked up in Lund, Sweden.

Deployment
Charge the batteries with the supplied USB cable in the base unit socket. Then you either place the equipment in the clamp, or connect it at home and test the function. Either way, press the button on the bottom of the base unit. The display shows the current temperatures on all connected sensors, and also battery status. The measurement is also sent to the internet.

Measurement interval
By default measurements are reported once a day. If you wish to increase the frequency it can be changed. An example would be during the storage season you want hourly measurement, and the rest of the winter months every two hours. In a few weeks during spring/fall to monitor the risk of frost, you want half-hour measurement.

Wiring
Do you want to measure with less distance between each rod, the cable can be manufactured in any length. Beetroot clamps requires much denser measuring points, such as two or five meters, because it is more difficult to store.

Build it yourself!
Buy air temperature sensor and wiring from us, cut your own pipe in the length you desire. Insert the tubes in the usual manner in the clamp, then lower the transmitter in the tubes, and connect. Then you can place multiple sensors in the same tube, if you want to measure at different depths in the clamp. Or, place a longer and a shorter tubes side by side. Max 100 m, 10 sensors, however!

Ambient
The equipment is designed to withstand -20°C and winter weather. Conventional batteries work very poorly at temperatures below freezing. You can’t use any battery, but must also check the capacity at freezing temperatures. Our batteries are nickel-metal-hydride version 2 (NiMH2), and can handle low winter temperatures.
Battery capacity is measured and shown online. When it has fallen too low after about two to four months, bring the base unit indoors and charge it.
If you want longer measurement periods, please contact us as we achieved operating times close to a year with other battery types.
The solar cell can not charge the battery at temperatures below freezing, and will be used the rest of the year when measuring temperature or soil moisture.

Monthly cost
Subscriptions for data charges according to how often you want to measure. Default is once per day. If you wish to increase the frequency you prepay a sum which is then deducted by the frequency measurement is made. Hourly readings of three measurement rods and air temperature sensor cost about 12 euro/month.
The base unit will choose an operator that is available, which means high reliability, and that it will work in any country, most likely.

Internet service
Your measurements are shown on a website when you log on. You can name the sensors and the base unit. All measurement data can be exported to an Excel file for detailed analyzes. See our video tutorial on how to export sensors and create charts.
You can also set alarm levels for the various sensors that are connected. This will send an email and/or sms when the value are above or below your setting.
Examples of the presentations of measurements can be seen at our demonstration web.

References
Since the season 2011-12 Nordic Sugar Agricenter Sweden uses our equipment in sugar beet clamps for storage trials in collaboration with Nordic Beet Research.
During the season 2013-14 we participated in a field trial which the Swedish Rural Economy and Agricultural Societies (HS) did to evaluate different systems for optimization of irrigation.

Theft Protection
The base unit can be locked in the GSM operators theft records and then becomes useless to a thief. It can also be tracked geographically.