Irrometer 524 Soil Moisture Sensor (Tensiometer), 24" (60 cm), Low Tension Gauge

Measuring soil moisture allows a grower to make informed irrigation scheduling decisions that will improve yields and quality while reducing water, fertilizer, labor, and energy costs. LT IRROMETER's are designed to operate in conditions where tensions above 30 cb (kPa) are not expected. Example applications would include avocado orchards on rocky hillsides, citrus in sandy Florida soils, or greenhouses with potting or non-soil growing media. The IRROMETER LT measures soil moisture by interacting with the soil through a porous ceramic tip. As soil dries, it tries to pull water out of the instrument, creating vacuum measured by the gauge. This is a direct, physical measurement of the same tension plant roots experience, requiring no electronics, batteries, or calibrations to operate. IRROMETER tensiometers have been on the market since 1951 and are proven by decades of commercial usage and field research, trusted enough to serve as the calibration standard for other sensors.

IRROMETER tensiometers are constructed of C.A.B., a durable, renewable, plastic designed for outdoor use. Fitted with stainless-steel gauges for many years of reliable service in field conditions, the gauges incorporate a membrane vent which allows them to maintain accuracy during changing conditions without sacrificing protection

Features:

• 0-40 cb (kPa) range gauge for coarse, sandy, or potting-soil applications
• Replaceable ceramic tip
• Direct measurement of soil water tension
• Large reservoir for quick maintenance
• Stainless Steel IP 67 gauge designed for harsh environments
• Membrane vented gauge for temperature and elevation compensation

Specifications:

• MATERIALS: C.A.B plastic, ceramic, neoprene, EPDM, bronze, brass, stainless-steel
• TIP: Threaded replaceable tip, suited for all soil and soilless mediums
• DIAL SIZE: 2.5 in. (63 mm)
• GAUGE CASE: AISI 304 Stainless steel membrane vented case, IP 67
• GAUGE WINDOW: Polycarbonate with EPDM gasket seal
• GAUGE DIAL: Scale of 0-40 cb (kPa), white with contrasting blue markings
• ACCURACY: +3-2-3% of gauge span, ASME B40.1 Grade B
• OPERATING TEMPERATURE: 33° to 150° F (0.5° to 65° C)
• WEIGHT: 12" (30cm) instrument: 0.97 lb (0.44 kg), increasing 0.25 lb. (0.114 kg) per ft.
• DIMENSIONS:
  • Reservoir Section: 5.125" (130 mm) ht, 2" (55 mm) dia
  • Water Tube: .875" (22 mm) dia
  • Body Length: 24" (60 cm)