ISCO Rain Gauge

ISCO 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 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)



No, all of our flowmeters are competitively priced and rental is an ideal option for cutting costs to a fraction of a full priced new flowmeter.
No problem. The quick start guide is designed to make installing the flow meters a simple task. Everything you require for set up will be found in the peli-box supplied with the flowmeter.
Every flow meter is tested upon shipping and return as part of our ISO9001 procedure. Also, as part of this procedure, the flow meter is calibrated once a year. If a copy of the calibration certificate is needed let us know.
The flow meters typically provide an accuracy of ±1 to 2% of rate, so if you are measuring 100l/sec then the accuracy is between 98-102l/sec.
We are here to help. If the self-help and quick start guides do not help, then call one of our technical support engineers on +44 (0) 1527 882060. We have supplied and supported many clamp on rental installations throughout Europe.
First, contact us for a quote. If you are happy with the quote then send us a purchase order. Or alternatively call us with credit card details and fill out and send us a rental agreement form.
If the stock is permitting, and all paperwork is received by 12pm then flow meters can usually be available the next day.
The minimum hire period for flow meters is one week.
Once you have the meter you can rent it for as long as you need it. However, it would help if you can let us know that you wish to extend the rental period. Upon return the meter is off-hired and once checked and tested, an invoice will be issued to you. Also, if you extend your rental past a 4, 8 or 12 week rental threshold, then you are entitled to a discount.
You are only charged for the period of time for which you have the flowmeter. So, if a flowmeter is returned 3 days late you are only charged for 3 extra days, and each of these days is charged at one fifth of the weeks hire cost.
Normally, you will use your own courier but if you have any problems let us know and we can arrange a pick up the day after you notify us, but you will be charged for the carriage and this cost will be added to the invoice.
Without exception, all our flow meters are tested. If you need a 110v plug instead of the standard 230v plug let us know.
All of our standard transducers will do -40degC to +150degC, but this will depend on your application.
  • Liquid: below 50mm CFLP transducers are required, 50-1000mm CRS-402 transducers and 150-8000mm CRS-401 transducers. All the bits you need can be supplied, and delivered with the meter.
  • Gas: below 80mm CRS-402 is required, for 80-300mm the CRS-401/CRV-310 and for above 300mm the CRW-312 transducers are required.
  • High temperatures: For liquid we can measure +450degC for liquid and for gas/steam +250degC. But please consult RS Hydro.
Of course, we make a small surcharge for each set of transducers. Most applications only require one set, but on occasion some people may require two, for more diverse pipe sizes and applications.
An ultrasonic wall thickness gauge, that measures to within 0.05mm, is provided as standard with all flow meter rental packages.
The screendump facility on the integrated dataloggers on all our flow meters, allows you to photograph any screen and download it to your pc.
After the equipment has been shipped, it is the responsibility of the hirer. However, in our experience it is rare that any of our flow meters are damaged. Our flow meters are tough, as well as accurate, and reliable.
We have hired more ultrasonic clamp on flow meters than any other company in Europe. We are now one of the world's largest distributors of GE Panametrics flow meters. We always review your application before hire so no unwanted surprises are encountered. Every effort has been made to make your flow meter hire and enjoyable experience: quick start guides to help you set up with ease, online videos for further help, rugged packaging for extra durability anywhere, and real flow engineers available for online/telephone support.