Surveying & Geological Instruments

Dumpy Level Thedolite Tilting Level Engineer's Air Meter Air Flow Meter Anemometer Polymeter Thermohygrograph Dial Thermometer Stevenson's Screen Hygrometer Meterological Recording Rain Gauge Optical Instruments Pressure & Vaccume Gauge Distance Measuring Seeking Gyroscope Camera's Stereoscope Compass Opthalmoscope Microscope Solar Energy Instruments