HeatWatch II Components

Base Station and Access Point

The base station is a sophisticated electronic device that receives and stores mounting activity information from the cow monitors in the form of RF signals. The information is wirelessly transferred to the access point which in turn passes it into the computer and the HeatWatch®II software. The base station also sends signals back to the monitors acknowledging the receipt of mounts and/or giving it certain instructions. The base station is encased in a weather-resistant enclosure and is positioned in a line of sight proximity to the cows. The maximum distance between the base station and the access point is a function of the types of antennas used on both devices. The standard configuration will allow for 1000 ft. The base station can be powered by either 110V outlet or 12V DC power.

Cow Monitor

Monitors, the heart of the HeatWatch®II system are small, transferable battery-powered digital radio frequency units containing a pressure sensor for detecting mounting activity and transmitting this data to the base station. The base station will send a return message to the monitor acknowledging its receipt of the data. If the monitor does not receive this acknowledgment message, it stores that mounting data and re-sends it on a periodic basis until the base station receives it. A monitor can transmit a mounting activity signal well over over a quarter mile in a line-of-sight to the base station. Periodically, a supervisory signal is sent from the monitor as confirmation that the monitor is working properly. Should a monitor be in an active mode and not send a supervisory signal, as in the case of a dead battery, you will be alerted by the software. Each monitor has its own unique numerical identification code. No two monitors have the same ID. Monitor cases are constructed of hardened plastic designed to withstand mounting activity forces.


The repeater is a sophisticated transceiver which identifies signals from HeatWatch®II monitors and re-broadcasts those signals at full power. The repeater is used to relay mounting information to the base station on large farms and ranches, or from area with hidden mounting or heat detection locations. This effectively increases the range by several miles in line-of-sight to the base station.

Patches and Glue

A polyester patch has 3 functional components:
1. the base material used to affix the patch to the tailhead of the cow with Ruscoe glue;
2. the nylon pouch that encloses the monitor.
3. the tail strap that can provide retention of the patch and monitor to the cow if the patch comes loose from intensive mounting. The glue is a contact-type cement available in 10.5 oz caulking tubes.