SKU: 33307566556

Simple SDI Automatic Portable SDI Silt Density Index Tester

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Description

Simple SDI Automatic Portable SDI Silt Density Index TesterSimple SDI Portable Automatic Silt Density Index Tester (SDI Tester) Simple SDI Version 2. 0 Prevent Membrane Fouling with simple SDI. Simple SDI silt density index meter offers automatic and portable Silt Density Index testing. The Simple SDI microprocessor precision plus high resolution flow measurement guides you through the test process accurately calculates the SDI of the water, eliminating manual calculations and margin of error. Clear, easy to


Simple SDI Portable Automatic Silt Density Index Tester (SDI Tester)

Simple SDI Version 2.0

Prevent Membrane Fouling with simple SDI.

Simple SDI silt density index meter offers automatic and portable Silt Density Index testing. The Simple SDI microprocessor precision plus high resolution flow measurement guides you through the test process accurately calculates the SDI of the water, eliminating manual calculations and margin of error.

Clear, easy to read LCD display prompts the operator through the test procedure and displays current test data while silt density index tests are underway. Audible alerts notify the operator at the end of the silt density index test as well as if any errors have occurred.

Benefits of Simple SDI Automatic Silt Density Index Tester

  • Routine SDI measurement can prevent membrane fouling and improve the efficiency of RO systems.
  • simple SDI offers automated test process for simpler, easier and accurate SDI measurements.
  • simple SDI is compact, lightweight and battery powered for easy portability.
  • Performs SDI 5, 10 and 15 minute tests with both 100 ml and 500 ml sample size tests – provides useful data which is especially helpful on high SDI waters.
  • Unattended operation. Start the simple SDI test and return in 15 minutes for the results – saves you time.
  • Real-time display of results including SDI, current flow rate and elapsed time. End of test display includes SDI 5, 10 & 15 with 100 ml and 500 ml results.
  • More accurate than hand testing (ASTM D 4189-95) – consistent results provides better information.
  • Uses standard 47 mm membrane filters – for lower consumable cost and worldwide availability.

What's New in version 2.0?

After nearly 20 years since the original simpleSDI instrument, we’ve completely redesigned the instrument to make it more reliable, more accurate and added new features.

  • New Lithium Polymer battery for more tests per charge, lighter weight and longer life.
  • New built-in prefilter to ensure that the flow sensor is protected from particulates.
  • New dual pressure regulator design provides safe operation up to 100psi and improves accuracy by regulating the pressure to the test regulator.
  • simple SDI uses ASTM D4189-14 compliant .45 micron, 47 mm, MCE membranes for standards compliance and consistent test results.
  • simple SDI is housed in a rugged crush-proof case. No flimsy tissue-thin plastic here.

Simple SDI Specifications

Model: Simple SDI v2.0
Part #: 182-10025
Tests Performed SDI-5 Range: 0-20
SDI-10 Range: 0-10
SDI-15 Range: 0-6.7
Dimensions:

 14" x 11.25" x 4.75"
(356mm x 286mm, x 121mm)
Weight: 6 lbs (2.7 kg)
Battery Type: 6 Volt, 3000 mAH Lithium Polymer (LiPo)
Battery Life: At least 5 years of typical usage. (Over 300 full charge cycles)
Battery Capacity: Approximately 30 hours of testing.
Power Supply: 5VDC, USB-A Port Charger, (e.g. phone, tablet or other device charger (user supplied))
Water Pressure: 35 - 100 psi
Water Temperature: 35-100°F
Test Inlet: 1/4" OD Tubing
Applicable Standard: ASTM D4189-07 (2014)

SDI Filters

SIMPLE SDI Kit includes ten (10) SDI membrane filters. A filter pack should also be purchased.

Part #: SDI-045

Filters for SDI Testing 47mm 0.45 MF white disk membrane filters.

Pack of 100

Part #: 182-30050

Replacement 50 Micron Pre-filter for Simple SDI Tester

Features of Simple SDI Automatic Silt Density Index Tester

  • Rugged Crush-Proof Carrying Case: durable protection for the meter, withstands harsh field conditions.
  • Pressure Gauge: Accurate, easy to read.
  • Full Port ½” Ball Valve: Minimal pressure drop – allows testing on as low as 35 psi feed pressure.
  • Microprocessor Based Controller: Highly accurate and easy to use
  • Batter Powered for True Portability: Up to 13 hours of continuous testing between charges. (System powers down to extend battery life when not conducting a test.)
  • Membrane Filter Holder: Uses standard 47 mm filters for standards compliance and lower operating cost.
  • Direct SDI Portable Silt Density Index Tester

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 33307566556

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4.1 ★★★★★
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N
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Nicholas
Cuba, US
★★★★★ 5
Great base to add patches to
Size: X-Large, Color: Black
I've bought this jacket twice now (lost the first one...). Great base for my DIY patch jackets. I buy an XL even though it's a size too large for me. It's a standard denim jacket, not much to write home about. Good pocket size, and I appreciate the functional chest pockets.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
H
Verified Purchase
Haley D
Fort Morgan, US
★★★★★ 5
good stretch
Size: 10 Long, Color: Dark Wash
Honestly, these are one of those surprisingly good basics—especially for the price. The biggest standout is the stretch. They’re really comfortable and move with you, so they don’t have that stiff “jeans” feeling. They hug your body in a flattering way without feeling too tight or restrictive, which makes them easy to wear all day. The mid-rise fit is also a sweet spot—not too low, not too high—so they’re super versatile with different tops. What I liked: Very stretchy and comfortable (almost feels like jeggings, but still looks like denim) Flattering skinny fit through the legs Easy everyday jeans—work, errands, going out Great value for the price What to know: Material is on the thinner side (more comfort than “structured denim”) They can lose shape slightly after a full day of wear Not the most durable long-term compared to higher-end denim Final thoughts: These are perfect if you want cute, comfortable, affordable jeans you can throw on with anything. Not premium denim, but for everyday wear—they definitely get the job done and are worth having in your rotation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
D
Verified Purchase
Debra R Singleton
Lexington, US
★★★★★ 5
Amazon Essentials Women's High Stretch Jeans
Size: 14, Color: Iced Blue Light Wash
Amazon Essentials Women's High Stretch Jeans receives positive reviews from me for their significant stretch, comfort, and flattering fit. The jeans are great for everyday wear, they feel soft and thick yet move well. Although some folks find sizing inconsistent, occasionally needing to size up or experiencing a slightly odd fit in certain areas. They're praised for looking good, offering good value, and being versatile enough for various occasions. Sizing can be hit-or-miss for some, but not for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Super comfortable
Size: 8, Color: White
These are high quality fabric.. Not thin and flimsy buy good fabric. Fit me like a glove. I love them and they are very comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
I
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Isabel
Waukegan, US
★★★★★ 4
Size down.
Size: 8 Long, Color: Iced Blue Light Wash
They are high stretch so I would size down from your usual size. I have bought size 10 in their brand and noticed the two previous I've purchased before this one were loose. So when I purchased this one I sized down and they fit good to me. I got long so they are LONG. And the regular would probably fit at your ankle or above. The only reason why I didn’t give it 5 stars was bc I don’t feel it mid rise to me it feels like high rise but I don’t feel them uncomfortable and also THEY ARE NOT SKINNY JEANS. They are straight leg and a tad bit loose so if you want stretch and skinny jeans these are not the ones for you. I only bought them thinking they were like the picture but it’s false advertisement.
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Reviewed in the United States on February 28, 2026

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