Photo-electric detectors units; Meters, namely, digital multimeters; Voltage stabilizing power supply; Measuring apparatus, namely, clamp meters for measuring electricity; Resistance measuring instruments; Technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids; Dynamometers; Infrared detection apparatus

device for measuring concentrations of enzymes in the air

device for measuring concentrations of enzymes in the air