SONDER

TEMPERATURE, PRESSURE AND HUMIDITY CONTROL INSTRUMENTS AND DEVICES -- NAMELY, PROGRAMMABLE DIGITAL THERMOSTATS, CLOCK THERMOSTATS, FAN-COIL AIR CONDITIONING THERMOSTATS, ELECTRONIC DIFFERENTIAL THERMOSTATS, SOLAR CONTROLS FOR THERMOSTATS, INDUSTRIAL THERMOSTATS, REFRIGERATION THERMOSTATS; WATERTIGHT THERMOSTATS AND HUMIDISTATS