Survey Instruments

The Stevenson screen is a rectangular wooden box provided with a door in front. All the four sides are double louvered, the roof is double and the floor consists of overlapping boards separated by an air space. The front door is hinged at the bottom and provided with two brass chains so that it comes to rest in an approximately horizontal position when opened to its full extent. TheStevenson screenitself is supported on four legs. A wooden frame on which the thermometers are mounted is firmly fixed in position inside the screen.

• The hand level is a small, level for use with preliminary surveys to determine travellerway.
• Cableway steel work elevations and other feasibility type site reconnaissance work.
• The abney level is very similar to a clinometer in that it is used to measure the value of a slope.

Recording Rain Gauge

For measurement of rainfall, manufactured from FRP material, which is non corrosive container assembled with gun metal ring & locking arrangements siphoning system & recording arrangements are manufactured from brass/ gun metal with very high precision.This Recording Rain Gauge available with high torque quartz clock arrangement.