THERMOGRAPH 3027
The thermograph is the instrument of choice for recording ambient temperature indoors or out. An aged bimetal strip expands and contracts with changing temperature. This movement is transferred to the pen through a counterbalanced mechanical linkage. A span of 60º or 110ºF can be measured, and the span can be easily adjusted for different reasons. The instrument is constructed of corrosion- resistant materials. The bases cast aluminum , and all internal parts are stainless steel or chrome plated brass air move freely around the sensor through large slots in the case.

HYGROTHERMOGRAPH 3028
Hygrothermograph is a precious, self –contained instrument that measures and records ambient temperature and relative humidity simultaneously on a double scale chart . This instrument is ideal for measurements in laboratories, computer room or agricultural areas. The Hygrothermograph employs an aged bimetal strip which distorts with changes in the temperature. This distortion is magnified through a lever system which moves a pen arm over the upper half of the 7 –inch high chart. The response is linear .Temperature is recorded over a 60°C or 110°C span. A specially treated bundle of human hair is used to measure relative humidity over the full range of 0 to 100%.

EARTH/SOIL THERMOMETERS 3030
For measuring earths temperature at depths from surface down to 1m. It has the advantage that Readings can be taken without disturbing the thermometer. Thermometer is mercury in glass with its stem bent at 30º just below the scale. The lower portion is placed vertically in the earth with bulb at the required depth. Range: -10ºC to 55ºC Depths available 5cm, 10cm, 20cm, 30cm, 50cm and 1m

STAND FOR THE ABOVE 3031
A metal stand made of thick soil thermometer gauge MS strip fixed with two clamps to hold the thermometer in position. Lower part can be inserted into the soil.

THERMOMETER SCREEN (Stevenson's) 3034
For use with four meteorological thermometers for their protection against Radiation and precipitation. The screen is a rectangular box made from seasoned wood. With all its 4 sides double louvered and provided with hinged front door. The roof is double and the bottom consists of overlapping boards separated by an air space. All 4 thermometers can be fixed inside the screen on the frame work provided inside it. Painted white with chlorinated rubber base paint. Conforms to "Globe" Specification.

SMALL INSTRUMENTS SHELTER 3035
Made of moth proofed hardwood and pointed with chlorinated rubberized paint. This small instruments shelter. Conforms to US. National Weather Service Specification and is made to hold thermographs, hygrothermograph, and other recording instruments.

LARGE INSTRUMENT SHELTER 3036
Instrument shelters protect seasons and other instruments against errors and damage due to solar radiation wind and precipitation. This large instrument shelter is built to National Weather Service standards. The enclosure is large enough to house several recording instruments, such as hygrothermographs. Thermometers and sensor probes can be mounted on a board which spans the inside of the box. The shelter is constructed of clear pine and painted with three coats of white latex paint. It has louvers on all four sides and vents in the bottom. this allows ambient conditions to exist inside, while radiation and precipitation are excluded. A double roof provides added protection against direct solar radiation. A lock and key are included for security.

WIND VANE 3051
A heavy duty wind vane compromising a balanced vane rotating through a double ball bearing axle made of s.s. All the directional arms can be detached, fitted on a heavy cast Al. Base with 1 1/2" Galvanised pipe. Epoxy painted to sustain weather hazards.

WIND VANE 3052
A small version of the above wind vane with all parts of s.s. Vane made of Al. and direction letters are also of cast Al. painted stove enameled.