ISCO 674 Rain Gauge

  • Compatibility 674 Rain Gauge is compatible with Isco 6700, 6712, Avalanche samplers, 4200 series flow meters and 4100 series flow loggers
  • High Accuracy 0.1mm per tip.
Product Options


The ISCO rain gauge uses a tipping bucket design to measure rainfall accurately. It is factory calibrated to tip at 0.1mm of rainfall. When an ISCO flowmeter or sampler is connected to the rain gauge it will store rainfall data in its internal memory for retrieval and analysis with ISCO Flowlink Software, plot graphs and print reports using the built in printer and activate sampling based on rainfall.

Standard Feature:

  • All openings of the rain gauge are covered with screens to prevent debris clogging up the gauge.
  • A 50 foot cable is included to connect the rain gauge to compatible ISCO samplers and flow meters
  • The tipping bucket has spring loaded sapphire jewel bearings to prevent damage and to ensure consistent operation over a wide temperature range.
  • The ISCO rain gauge is easily aligned due to three point leveling and integral bubble leve

Manufactured by: Teledyne ISCO
Model: ISCO 674 Rain Gauge

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Stormwater runoff monitoring
Inflow and infiltration studies
General rainfall measurement
Combined sewer overflow monitoring
cMOM and CSO/SSO programs


Type Tipping bucket
Compatible Equipment Isco 6700, 6712, and Avalanche Samplers, 4200 Series Flow Meters, 4100 Series Flow Loggers
Connect Cable 50 ft. (15.2 m), 2 conductor with 4-pin plug
Bearings Spring-loaded sapphire jewel
Orifice Diameter 8 in. (20 cm)
Sensitivity English - 0.01 inch; Metric 0.1 mm
Accuracy English - ±1% at 2 in/hour; +3%/-4% up to 5 in/hour
Metric - ±1.5% at 5 cm/hour; +3.5%/-9% up to 13 cm/hour
Capacity English - 22 inches/hour
Metric - 38 cm/hour
Output Signal Contact closure of at least 50 millisecond
Switch Type Hermetically sealed magnetic proximity switch.
Normally open, 200V DC, 0.5 A maximum.
Height 13 in. (33 cm)
Diameter 9.5 in. (24 cm) (at mounting base)
Weight 10 lbs. (4.5 kg)
Operating Temperature 32° to 140°F (0° to 60°C)
Storage Temperature -40° to 140°F (-40° to 60°C)