The IRROMETER was first developed in 1951 to help growers improve irrigation efficiency. It provides the user with accurate information on soil moisture status regardless of soil type. The instrument measures in centibars (cb) or kilopascals (kPa) of soil water tension. This value represents the energy a plant’s root system uses to draw water from the soil. Understanding soil moisture activity helps the user make informed irrigation scheduling decisions resulting in improved yield and quality while reducing water, fertilizer, labour and energy costs.

The "SR" Irrometer is the standard instrument for use in medium to heavy soils. The instrument includes a threaded replaceable tip as well as reservoir, air free gauge chamber and hermetically sealed IRROMETER vacuum gauge with dual scale of centibars and kilopascals (0-100 cb [kpa] range).

• 0-100 cb (kPa) range gauge

• Replaceable ceramic tip (white)

• Air-free gauge gives accurate readings

• Large reservoir makes maintenance easy

• IP 67 gauge designed for harsh environments. Has membrane vent for temperature and elevation compensation with improved accuracy

MATERIALS Butyrate body, ceramic tip, neoprene stopper.
RESERVOIR SECTION DIMENSIONS HEIGHT: 4.75 in. (120 mm) – 5.125 in. (130 mm) including cap DIAMETER: 2 in. (51 mm) – 2.15 in. (55 mm) including cap
BODY TUBE SECTION DIMENSIONS LENGTH: Ranges from 6 in. to 60 in. (15 cm to 150 cm) (special lengths available) DIAMETER: .875 in. (22 mm)
INSTRUMENT WEIGHT 12 in. (30 cm) is .968 lb. (.439 kg) with increases of .252 lb. (.114 kg) per foot.
CERAMIC TIP Replaceable threaded tip with O-ring seal. Whitetip – used for most soil types
WARRANTY 1 year against manufacturer defect


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