Dog Ovulation Detector 2

The Draminski Dog Ovulation Detector provides immediate and accurate identification of ovulation, even in the case of ‘silent heat’ with extremely minimal labor and expense. The DOD 2 includes several upgraded features including memory to store, save and automatically graph results for all your breeding dogs. Results can be easily uploaded to your computer via the USB cable, whereas the Original device includes paper graphs for charting and tracking results. Please note the software is compatible with Microsoft software only.

$489.00 USD

SKU: DRA-OVU-DOG-DOD2 Categories: ,

Extremely cost-effective, the device pays for itself with one breeding. Used correctly, you can confirm with confidence that ovulation is forthcoming within 24 – 48 hours.

The device measures the electrical impedance of your bitch’s vaginal fluid which increases in a unique trend with each bitch prior to ovulation. When used consistently as prescribed, this proven method of over 25 years effectively tracks timing when following the LH surge and progesterone levels are at their optimum to indicate when appropriate to proceed with insemination.

In canines, 48 hours following the LH surge, ovulation occurs, after which eggs require up to 48 hrs. post ovulation for oocyte maturation to occur. Typically allowing for a brief 3-day window of maximum fertility.

Research shows that the peak and decline in readings using the Ovulation Detector occurs two days following the LH surge. The device readings will reach their highest point and start to decline about two days after this at the time of ovulation and it is recommended to inseminate 24 hours (48 at the latest) of this peak and decline in results for the best results.

Owing to this simple method,  breeders can detect ovarian cycle disorders and determine the best date of mating, even if external symptoms fail to indicate that.

Summary of best practices using the Draminski Dog Ovulation Detector:

  • When taking daily measurements, ensure that you test at the same time of day for each reading.
  • Testing once every 24 hours is ideal. When readings start to increase, test every 12 hours for best results. Do not test more frequently than every 4-6 hours.
  • The probe on the detector has been designed for use with all breed types and sizes. For safe and comfortable use, it is essential to read the User Manual.
  • Find the proper depth to insert the probe up to the cervical mucus (the area where you will find slight resistance inserting the probe).
  • Insert the probe at a comfortable angle, being approximately the 11 o’clock direction on a clock face (imagine the male entering the bitch coming up to her from underneath at an angle).
  • Take readings in the same position in the vagina for each test. This is essential for reliable results.
  • Record and get familiar with the unique readings for each bitch to observe the trend and note the highest peak reading. We suggest doing this for a few ovulation cycles to understand the range of values.
  • Clean and disinfect the probe before and after each use. Residue on the probe sensor, including urine or oil from your skin, leads to inaccurate results.

CKC members can log in to the Member-Only Website or contact the Canadian Kennel Club to acquire the member-only discount code. (Please note: CKC members will receive a savings of $49.90 at checkout after applying the discount code.)

Not a CKC member? Join here.

Please note that these devices are not returnable due to safety and hygiene unless of course, your product arrived damaged or defective.

Weight 1.2 g
Dimensions 14.5 × 12.5 × 4.5 cm


Probe Type


View Options


Probe Length

5" or 7"

Power Supply

4 AA-type batteries 1.5 V (LR6)

Battery Charge Indication


Battery Low Indication


Current Inpit

11 mA to 54 mA (depending on the backlight intensity)

Measurement Control

Single-chip microcomputer

Battery Operating Time

Battery Operating Time

Feature Control


Keyboard Type


Data Transmission


Data Transmission Method

via USB

Update Method

via USB

Data Record

Internal memory

Memory Size

100 animals / 200,000 measurements with date and time

Measuring Range

0 to 2000 units

Additional Features

Real-time clock, pop-up menu, display operating parameters settings, language selection, auto shutdown time change, measurement settings, data and software updates.

Display Resolution

10 units

Operating Temperature

From 0°C to 50°C

Storage Temperature

From 5°C to 45°C

Kit Includes

Bitch mating detector, carrying case with foam insert, operation manual, 4 AA batteries, 1,5V (LR6), USB cable for communication with a computer, a lanyard.

Is the Dog Ovulation Detector difficult to use?

The detector is very simple to use. If used per the instructions manual it will provide excellent results. Keeping the detector clean and disinfected is of the utmost importance. It should be disinfected BEFORE and AFTER each use. Any mucus left on the probe will give false results.

How should readings be taken?

The readings should be done once a day when ovulation is approaching and twice a day when values start to increase. Readings should always be taken the same way; it is best if the probe reaches the cervix. You will know you have reached the cervix when after gentle insertion you meet resistance. Ensuring that the probe is always inserted to the same depth every time you test is important. Otherwise you can insert the probe and take readings in different parts of the vagina and receive random, incorrect results. We also advise to always take the readings at the same time of the day, morning is best. There are several factors which may affect the readings otherwise, but errors can be avoided by taking readings at the same time every day.

What should I do if the readings are different than the manual?

The readings do not need to be the same as in the chart. Each dog may show slightly different readings. But it is important to find the maximum peak reading and the subsequent fall in readings. If reading values start decreasing ovulation is imminent. The best moment for insemination is when the readings fall close to the initial level.

Is there a way to check/test the device to ensure it is working properly?

When you press the switch in open air “1 0″ should be displayed. b) Prepare water-saline solutions with different salt concentrations, immerse the probe in these solutions and check whether the instrument responds to the changes in the concentration of salt. After the probe, has been taken out of the solution the result should constantly show in the display and should not disappear before 30 seconds (the switch must be held, of course). c) Check the instrument with 0,05 more KCL solution in 20°C. The instrument should display about 210-220 d). Make sure while checking the instrument that the electrodes (at the end of the probe) are clean and no “LO BAT” is displayed.

The readings are very high, is the device working properly?

Dirt, or skin oil on the electrodes will result in readings too high, whereas urine on the electrodes or solutions containing salt will cause lower readings. Please clean the electrodes and check if the device is working well, by following instructions explained above. Ensure to follow cleaning instructions in the manual to avoid damage to the probe sensors.

How should I clean the device?

Before and after each measurement, the detector must be disinfected. Careful and thorough cleaning and disinfection of the instrument is very important for proper usage. We recommend wiping the probe with gauze, cotton linen or even tissue paper to clean it of mucus, feces, urine or hair, especially around the electrodes. Next, it is best to wash it under warm, never hot running water and finally immerse it in a disinfecting solution. Always use disinfectants at concentrations given by the manufacturer, as if not used properly they may cause irritation of the vaginal lining. Wiping the probe clean before use will prevent this from happening.

What should I do if my device is not functioning properly?

Please check the device as described in the question: Is there any way to check the instrument? If it is not working as expected contact us.

Does the device work by measuring temperature?

It measures electrical resistance of the vaginal mucus located near the cervix which changes as the bitch moves through her cycle.

How accurate is the device?

It is very accurate and consistent when operated correctly.

Is it possible to harm a bitch during a test?

Not unless you are very heavy handed and do not take obvious care. Compare the size of the probe (length and diameter) to the penis of the dog (even in toy breeds). Gentle insertion of the probe is important to ensure the probe is inserted at the angle of the vagina and levelled off to reach the cervix (see How do you know if the probe is in the right place?).

How do you know if the probe is in the right place?

The probe should be inserted until a slight resistance is felt, which is when the probe just reaches the cervix. At this position, the probe tip is positioned within the area containing the maximum amount of mucus to thus obtain accurate and consistent readings. This position is adjusted slightly relative to the size of the bitch. Also, some bitches can be very dilated early in the cycle with little or no resistance being felt. Larger breeds will likely require the entire length of the probe inserted, whereas toy breeds will likely require less. If you have experience performing an AI, keep in mind the length of the tube inserted to reach the cervix or alternatively, consider the length of the male penis for the breed, that is a good indication of how far the probe should be inserted.

Mimic the angle of entry of the stud dog as he enters from underneath at approximately 45 degrees and then ‘levels off’. Remember that the vaginal passage has a kink in its shape. (Thus you need to enter at approximately 45 degrees and then level off as well). Sometimes early in the season, a few bitches may be somewhat dry. Moisten the probe with water, part the lips of the vulva and gently push the probe into the vulva. If the bitch constricts, hold the unit in place and do not push anymore until she relaxes, at which time you can resume gentle pressure, and the probe will slip into the passage easily. Do not use a lubricant such as KY jelly or Vaseline as they will adversely affect the readings obtained!

How often should readings be taken?

It is best to take readings daily at the same time of the day. When the figures start to rise, it is wise to take 2 readings a day to more accurately pinpoint the peak number and thereby determine the best time to breed. We suggest once every 12 hours, and be consistent, commit to every 12 hours, for instance 8 am and 8 pm. When readings start to rise, testing every 12 hours is helpful in pinpointing the peak reading and decline. It is suggested to not test more often as readings can fluctuate during the day, which can make graph interpretation more challenging. Stick to twice a day, at the same time each day to make result interpretation easier. Never repeat a test immediately following a test. By performing a test, you have discharged the mucous and another test too soon, will provide inaccurate results.

When should I start taking readings?

Take regular readings from the very first moment that you notice your bitch coming into season. Be consistent, sticking as close to the same time each day, makes for better interpretation of results.

For how long should the probe be inserted for?

After the reading stabilize on the detector LCD (takes approximately 2 seconds) the probe may be taken out of the bitch.

All the readings are low (no reading surpasses 200), what should I do?

Usually it is because the probe is not inserted far enough into the bitch and does not reach the actual mucus which is what the unit is looking to measure. Also, salt from the urine can depress the readings.

I am getting high readings randomly, why?

Usually it is because the probe is inserted too far. (the whole length of the probe is inserted up to the body of the instrument). Thus, going past the cervix and producing random high readings.

How can I tell the difference between a ‘false peak’ and a real peak?

The false peak can be just a small rise and fall or the rise can be quite significant. Regardless of the value though, it typically occurs around day 3/4/5 of the season.

My bitch still has some red discharge; however, the device indicates to breed, what should I do?

It is indicating what is happening with your bitch as opposed to the external signs, trust the device.

What is the probe made of? Will it break off?

The probe is made of a high-quality special polyamide plastic which is very durable.

Will the bitch mind the procedure?

All bitches are different, some accept the probe instantly without any problems the first time it is used, some are puzzled and some are uneasy, much in the same way as the reaction of a bitch to a stud dog when mating.

What should the maximum/peak reading be?

Some bitches peak reading may be 400, whereas others may be well more than 1000. The key point to remember is that you are looking for the profile (peak and drop) as opposed to the actual value of the reading.

My bitch did not peak at 600, I kept waiting and missed it!

The Manual explains that the peak value may be higher or lower than the example shown in the manual of a 600-peak figure. (Look for the peak followed by the decline in results). Each bitch will have her own unique results; the key is to pinpoint the highest/maximum reading and the decline in results.

When is the best time to mate?

Manufacturers state that the optimum time to breed is 24 hours after the peak.

Can lubricant be used on the probe?

Lubricant will adversely affect the value of the readings obtained.

Should I take the battery out when not in use?

No, the battery is only removed and replaced when it is exhausted.

How do you rotate the device while pressing the button?

You rotate the unit first and after a full rotation ~ THEN the button is pressed.

What happens with the readings once the bitch has ovulated?

The peak figure indicates when the luteinizing hormone is released, triggering ovulation to occur. After which time the value of the readings decrease steadily in a relatively short time and finally reach an approximate plateau figure at which they remain.

Can a bitch go through heat and not ovulate?

Yes, bitches can display ‘standard expected behavioral signs’ but not have what could be considered a ‘normal’ ovulatory season.

How will I know when the peak has been reached?

By taking readings regularly. Once readings start to rapidly rise, it is possible to take more readings in the day, however, ensure they are spaced out by at least 4 hours in between. When the values increase 2, 3 or 4 times a day a maximum peak figure is obtained.

Does diet affect the readings?

The manufacturer is currently researching this issue and believes that diet does affect the readings. However, once again it is not the actual value of the readings what is important but the profile that is obtained, to determine the peak figure.

Why do I get different readings when I push the button without moving the probe?

Because the electrical potential of the mucus initially tested has been discharged.

How will I know when the battery is low?

The LCD screen on the unit will show the message: LO BAT.

Will I need an assistant to help me when taking a reading?

No, but just as with breeding an assistant is helpful in reassuring and steadying the bitch.

How long will the device last?

With proper maintenance, it can last a lifetime.

How should I clean the instrument?

Disinfect the detector before and after each measurement. Careful and thorough cleaning and disinfection of the instrument are the most important conditions for its proper usage. Always use disinfectants at concentrations given by the manufacturer, as otherwise they may cause irritation of the vaginal lining. Clean the instrument before each use to prevent this. The solution of the disinfecting agent should be prepared directly before the next use of the detector. The best disinfectant agent is Hibiscrub, Dettox or Savlon solutions, or any other agent indicated for veterinary use. Wipe the surface of the probe with the solution, then rinse thoroughly with warm water (never hot water as it could damage the probe sensors), dry and store in its case.

Can I use the device when a bitch has problems?

Obviously, this instrument will not solve the reproduction problems of a bitch. It will not change an infertile bitch into a fertile one. However, it is another instrument to facilitate managing reproduction programs. This instrument can be used at home. It will reduce the number of visits to the vet as well as the number of more expensive and invasive tests. It will help to determine false heat because in such a case a value of the reading will not increase. Also in the case of quiet heat the peak of climax can be determined precisely.

Is it safe to test/use the probe after mating?

Yes, it should not have any adverse effects, however t is recommended to wait 24 hours after mating to use the device.

With updated and expanded features

Choose Between Two Operating Modes:

  • Standard Mode
    For taking quick measurements & immediate results in a hurry.
  • Advanced Mode
    Offers expanded settings and saves your readings to memory.

Internal Memory that will store up to 100 individual names and as many as 200 measurement records with exact date and time of results. The intuitive software allows easy transfer of measurement data stored in the detector memory to a computer for further analysis and archiving. The device has a mini-USB port for data transmission to a computer.

Determine ovulation for optimal timing

Reduce stress and anxiety by knowing exactly when to breed or when to deploy other testing methods.

Standard mode Take quick measurements and get immediate results in a hurry.
Advanced mode Expanded settings and features that save your readings to memory.
Memory Internal memory that will store up to 100 individual names and as many as 200 measurement records with exact date and time of results.
Data transmission application The intuitive software allows easy transfer of measurement data stored in the detector memory to a computer for further analysis and archiving. The device has a mini-USB port for data transmission to a computer.
Measurement mode Change the measurement mode from 3 readings (recommended) to 1 reading (if you have an energetic, hyperactive girl and would like to get results as fast as possible).

The Draminski Dog Ovulation Detector 2 makes it easy, affordable and helps determine precisely when to mate.

Know ovulation cycles, accurately, easily, affordably

From the lost opportunity of a missed pregnancy to ongoing and costly blood tests, wasted semen, and the stress, expense, and travel involved in repeat mating attempts, the costs are high when ovulation is missed.

Extremely cost-effective, the device pays for itself with one breeding. Used correctly, you can confirm with confidence that ovulation is forthcoming within 24 – 48 hours.