Abstract: A bolus for monitoring the parameters of an animal. The bolus will sense selective parameters and will send signals representative of those parameters to a receiver. The bolus includes sensors for sensing a number of parameters such as temperature, pH and movement. The power of the signal inside the animal is greater than that outside the animal since the signal is attenuated by the structure of the animal.

Abstract: A bolus for monitoring the parameters of an animal. The bolus will sense selective parameters and will send signals representative of those parameters to a receiver. The bolus includes sensors for sensing a number of parameters such as temperature, pH and movement. The power of the signal inside the animal is greater than that outside the animal since the signal is attenuated by the structure of the animal.

Abstract: A method and apparatus for lifting modular furniture, the apparatus includes an electronically controlled jack and a lifting bar that will engage modular furniture. The lifting apparatus can be interconnected with more than one side for the unit of modular furniture. Each lifting apparatus can be controlled by a master control unit which will cause each lifting apparatus to lift the sides so that modular furniture can be lifted as a unit and maintenance such as painting, and/or removal and replacement of flooring can be accomplished. Synchronous lifting is accomplished by comparing the rate at which each lifting apparatus raises the side and by sending a signal with the master control unit to each lifting apparatus to either stop or adjust its raising rate to insure that tilting, which can place undue stress on certain parts of the modular furniture does not occur.

Abstract: A modular control is provided for sensing characteristics of a fluid and controlling the dispensing of additives into said fluid. The control is contained in a box-like housing having an openable wall which is sealable to a remainder of said housing in a water-tight manner. A plurality of printed circuit boards can be mounted in an interior of said housing. A control circuit is carried on at least one printed circuit board mounted in the housing including a microprocessor controller. At least one probe is provided for immersion in the fluid to detect a characteristic of the fluid. At least one output device is provided for dispensing an additive into the fluid. A signal processing circuit is carried on a printed circuit board mounted in the housing for processing a signal received from the probe. An output control circuit is carried on a printed circuit board mounted in the housing for controlling the output device. A display is mounted on one of the housing walls.