Loup 8000i Yield Monitor

8000i Yield Monitors

Universal Yield Monitor compatible with any make or model combine.

Loup Yield for any combine

The Loup 8000i Yield Monitor is a Simple, Straight Forward system and can be used for all Makes and Models of Combines, regardless of the age. Optical yield sensors collect yield information while our  moisture sensor gathers the crop moisture readings. GPS receiver and data card are available to log and create field maps with a variety of different mapping software. Expect the best results with the least amount of calibration needed.


yield monitor installation

Corn/Soybean Harvest

yield monitor setup

Initial Setup

yield monitor setup

Field Mapping

yield monitor setup

Farm Works Installation

yield monitor setup

Data Card Setup



Display Features

  • Yield (Bushels per Acre)
  • Grain Moisture Content (% Moisture)
  • Ground Speed (MPH)
  • Field and Total Bushels
  • Wet or Dry Bushels
  • Area (Field and Total Acres)
  • Bushels per Hour
  • Instantaneous or Average Readings
  • Header Up/Down Indication
  • Time of Day
  • Visual Indication and Adjustment for Cut/Header Width
  • Easy to Read Backlit LCD
  • Built in SD Drive for Data Logging
  • Non-Contact Field Proven Yield Sensor

Optical Yield Sensor Advantages

The two most common methods of sensing Crop Yield on a combine are through Optical Sensors and impact plate technologies. While both provide adequate results, the Loup Electronics 8000i Yield Monitors utilize the optical sensor. This is a tried and proven sensing technology that can be found on thousands of combines worldwide and in OEM Yield Applications.

The optical sensor has two major advantages that reduce the amount of time and effort involved in Calibration:

  1. The moisture content of the crops does not influence the Optical Sensor in our Yield Monitor, therefore a single calibration for a crop is sufficient for the Loup Yield System. Other yield systems require a low moisture calibration and a high moisture calibration for the same crop. Since our optical sensor does not rely on contact with the crop to determine Yield, we do not need these calibrations. The Moisture content is used to determine “Dry” bushels, but does not influence the “Wet” bushel readings.
  2. The Optical Yield Sensor can be “characterized” for the make and model of combine. This means that Typical Calibrations for a make and model of combine are stored in the memory of the Monitor. As the user, you select the make and model from our “shopping list” of combines and your initial calibration is based on these average numbers. The field calibration does not require cutting various widths, or keeping track of multiple loads versus actual. Once you have determined the actual bushels from as few as ONE Load of grain, this information is entered into a self-explanatory screen and the adjustment is completed. This adjustment not only changes the future data but also on the past data.

Field Mapping

The field mapping feature of the Loup 8000i Yield Monitor can help collect valuable data about your fields and provide insight into future harvesting. Yield data gathered from each of your fields can be displayed on a map using a number of software packages. These programs can process the raw data collected by the yield monitor into a colored field map displaying information ranging from moisture to dry and wet yield.

Advantages of GPS Field Mapping

The primary advantage of collecting yield information from year to year is to identify field areas with high and low yields. Steps towards increasing the yield of targeted areas can then be made for future harvesting. As a field’s yield information is collected over a number of years, the more consistent that information becomes against cases of weather or other unpredictable factors.

Crop Insurance

Many insurance companies will accept the data and use it towards your crop insurance. By collecting accurate field and yield data you can ultimately help your bottom line, resulting in higher insurance guarantees and more profit for you.

Frequently Asked Questions

How difficult is installation?

7/8” Hole for Optical Yield Sensors

Installation of the 8000i Yield Monitor is not difficult, though it can take time. Typically you can plan on an install taking anywhere from 6-8 hours. The key steps are cutting a hole in either the clean out door or bubble up auger for the moisture sensor, and cutting holes in the clean grain elevator for the optical yield sensors. Much of the time is spend routing wires from the sensors to the junction box. Installation instructions are supplied for the type of combine you have and we encourage calling us for any questions you may have.

How does field mapping work?

All field data is stored to an internal SD card within the yield monitor console. When you’re finished in the field you can remove this card and plug it into your computer. Maps can be opened with software such as Farm Works, SMS and others.

How do the yield sensors work and how often should I calibrate?

Our optical yield sensors calculate a percentage of darkness across the paddles. Since moisture does not affect these sensors, one calibration per crop per year is all that’s needed. These sensors are non-contact, eliminating the need for a low and high moisture calibration.

These sensors can be configured for a specific make and model of combine. Each unit comes with a list of combines to choose from, each preprogrammed with typical calibration settings for that make and model. Once you’ve determined actual bushels from a load of grain, this information is entered into the system and automatically adjusted. This affects both future and past data collected.

Does it matter where the moisture sensor is located?

Whether mounted to the clean out door or bubble up auger, location of the Moisture Sensor does not affect it’s accuracy. The clean out door is a popular location since it’s easier to access.