Microwave Research & Applications, Inc.
190 Easy Street Unit A
Carol Stream, Illinois 60188
Phone 630-480-7456     Fax 630-480-7458

BP-111RS Laboratory Microwave

Our BP-111-RS laboratory microwave is designed and built primarily for sample tissue preparation for microscopy and biological processing (including In Situ Hybridization (FISH)) but it can also be used for other laboratory heating applications requiring excellent power and process control.  This microwave uses our True-To-Power™ power control system for precise power control.

Mouse Liver

Process control

While the BP-111-RS is physically similar to the BP-111, the process control is different.  The BP-111-RS allows the user to set the power level using a power control knob, a maximum sample temperature and the process time using a digital timer.  The power level, the process time can be changed before or during the process.  While this microwave has a less automated method of process control then the BP-111, it allows for more versatile as different types of samples can be processed in the microwave.



Operation is simple, you set your desired power level using a power control knob, set your process time using a programmable digital timer, and then you set a maximum temperature on the temperature controller.  This makes sure the sample temperature does not exceed your maximum process temperature by turning off the microwave until the sample temperature begins to cool at which time the microwave comes back on and thus the microwave keeps the sample at or slightly below the desired process temperature.  The power level, temperature and time can be adjusted during the processing allowing versatility and the ability to adapt during processing.   Some protocols can be found at the University of California – Berkeley CNR Biological Imaging Facility website at:






Nominal values

Output power 1000 microwave watts
Required power 120 volt, 60 Hz.
Dedicated 20-amp line
Input power 1,000 watts maximum infinitely variable adjusted manually.
Temperature probe Standard type K shielded probe. Connection by connector requires no tools for replacement
Process control Semi-Automated
Dimensions Outer 20.125” w x 15” d x 12” h nominal (W/O handle)
Cavity 13” w x 13” d x 8.06” h nominal
Weight/Shipping weight 50/55 pounds
Operating frequency 2.45 GHz (an internationally regulated ISM frequency)
Cavity inlet air Ducted directly from ambient (and relatively constant temperature) room air. This gives a consistent process environment. Many laboratory microwave ovens draw cavity air from the electronics housing; which can often be quite hot and inconsistent in temperature. High air temperature can adversely affect processing consistency.
Cavity exhaust

Powered, 15 cfm.
Includes 8 feet of chemical resistant flexible duct to connect to exhaust system. Includes 2 stainless steel clamps for ease of mounting

Cavity and housing material Corrosion resistant stainless steel
Electronics cooling High volume for long life


      • 230 volt 50 Hertz operation
      • Variety of temperature probe configurations available
      • Infrared temperature sensor available
      • Microwave safe gas feed through ports
      • Corrosion resistance package
      • Ashing package with muffle to 1,000 °C
      • High temperature package for processing up to 1,800 °C
      • Vacuum chamber
      • Air driven magnetic stirrer system

Fully safety tested for microwave leakage, electrical safety and operation.

BP-111-RS Control Panel