Q: How does the BULLING BEACON® tell the difference between true standing heat and the animal rubbing against objects, low branches etc?
A: Both BULLING BEACON® and HEAT SEEKER® detectors incorporate a proven time-release dye capsule that will become activated only after sustained pressure. Remember that oestrus detectors are only an aid, the farmer should still look for further evidence of true standing heat, observe the condition of the cloth, marked and dirty indicates the animal has had frequent riding activity, or clean which indicates little or no riding activity.

Q: Sometimes I see partially activated BULLING BEACON®s? Should I count these as on heat?
A: Further evidence of standing heat needs to be looked for, make sure the cow has not been in a confined space where she could not get away from bulling herd mates. At the next inspection if there is no change to the detector you should treat her as not in heat. The same is true for the HEAT SEEKER® indicator.
Q: Does wet weather affect the BULLING BEACON® and should I take extra steps when applying in the wet?
A: BULLING BEACON® detectors have been designed to work in any weather conditions. Apply as normal in wet weather.
Q: I have some BULLING BEACON®s that are past their “Used By” date, are they OK to use?
A: The only part of the detector to be influenced by age is the dye in the time-release capsule which, if not stored correctly, can evaporate over extended periods. Hold a detector up to the light and check how much dye is in the tube. If there is still 90% or more dye the detector is fine to use. Store your left over detectors in an air tight container in a cool place with the arrows pointing upwards. The same applies to the HEAT SEEKER® detector.
Q: In a new packet some of my detectors have spots and dye around the capsule seal, will they be reliable?
A: Yes, during transit and in hot and humid conditions the dye in the tube sometimes expands and in these conditions it only takes a little rough handling to cause a small amount of dye to leak out of the tube. As long as most of the detector’s capsule is white and you can see 90% or more dye in tube when it is held up to the light the detector is still fine.
Q: I have run out of BULLING BEACON® adhesive but still have some ‘Beacons’ left. Can I purchase more adhesive separately?
A: Yes, contact your local distributor.
Q: What colours are BULLING BEACON® oestrus detectors available in?
A: Both BULLING BEACON® and HEAT SEEKER® detectors are available in red, blue, pink and green. Each dye colour is designed for maximum visibility.



Q: Do topical products (pour-on drench, tail paint, etc) affect the HEAT SEEKER® self-adhesive’s ability to bond to the animal?

A: Yes! Any oil or solvent based product will reduce the performance of the self adhesive system. Do not place HEAT SEEKER® detectors over tail paint or on any animal treated with pour on drench.
Q: It is the end of winter and my herd is moulting their winter coats. Do I apply the HEAT SEEKER® as normal?
A: HEAT SEEKER® adhesive only bonds to the animal’s hair. You need to remove all loose hair prior to application, otherwise your HEAT SEEKER® detectors may fall off prematurely with the shed hair. Never apply HEAT SEEKER® detectors to areas bare of hair.
Q: My dairy cattle have very prominent backbones that make it difficult to place other oestrus detection aids. Any advice for using HEAT SEEKER® in this situation?
A: The HEAT SEEKER® detector features a large surface area specially designed to mold to any cows backbone. Place as normal, usually best on the flat area on the backbone just behind the hips.
Q: Sometimes I don’t place my HEAT SEEKER® in the best location on the cow. Is it okay to quickly reposition it?
A: No. Do not try to reposition. The self-adhesive will not adhere properly after the first contact with the cow.
Q: A few of my cows have a slight depression in the backbone right where I usually place the HEAT SEEKER®. Is it okay to place them in the dip?
A: No. This will reduce the pressure from the mounting animal, and might not trigger full activation. Place your HEAT SEEKER® forward of  the depression.
Q: When I apply the HEAT SEEKER®, the adhesive sticks properly to the hair but the length of the animal’s coat allows the HEAT SEEKER® a little bit of movement. I know it won’t come off, but will this affect activation?
A: No it will not affect activation, as long as the detector is correctly placed on the spine of the cow.
Q: Does wet weather affect the HEAT SEEKER® and should I take extra steps when applying in the wet?
A: Ideally HEAT SEEKER® detectors should be applied in dry weather, however when the need arises to apply them in the wet be sure to remove as much excess water from the application site as is possible, make sure the detector is warm and the adhesive tacky, rub the detector hard (avoid applying any pressure to the capsule) to work the adhesive well into the hair.
Wet weather does not affect the HEAT SEEKER® detector once it is on the cow.



Q: Now that there is a quality self-adhesive indicator available, why do you still sell BULLING BEACONS®?
A: Some customers prefer the cost effective option of manual adhesion detectors. Also, in difficult circumstances (eg. extremely wet or cold climates) the BULLING BEACON® can out-perform self-adhesive detectors if the farmer applies a thicker layer of BB adhesive to compensate.