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Description
JLT Series FlocculatorsVELP JLT Flocculators The VELP JLT Series are multi position digital jar testers engineered to deliver reliable, repeatable flocculation testing for water treatment applications. Available in two variants, the JLT 4 and JLT 6, the series accommodates four or six sample positions simultaneously, with identical speed and timing applied across all positions for directly comparable results. A bright digital display and microprocessor controlled timer make
VELP JLT Flocculators
The VELP JLT Series are multi-position digital jar testers engineered to deliver reliable, repeatable flocculation testing for water treatment applications. Available in two variants, the JLT 4 and JLT 6, the series accommodates four or six sample positions simultaneously, with identical speed and timing applied across all positions for directly comparable results. A bright digital display and microprocessor-controlled timer make it straightforward to set precise working conditions and run unattended tests with confidence. Stirring rods adjust in height without tools, and the disconnectable illuminated back panel simplifies sample observation during testing. Built from an epoxy-painted metal structure with strong resistance to chemical and mechanical corrosion, and designed and manufactured in Italy, the JLT Series is a dependable platform for any water treatment lab.
Features
- Digital display for precise, intuitive speed and timer setting
- Identical speed and time across all positions ensuring directly comparable results between samples
- Microprocessor-controlled timer (up to 999 minutes or 99 hours, plus continuous mode) for unattended operation
- Digitally selectable speed from 10 to 300 rpm in 1 rpm increments
- Disconnectable illuminated back panel for easy sample observation during testing
- Stirring rods adjustable in height via self-blocking chuck, no tools required
- Strong resistance to chemical and mechanical corrosion for long-term durability in demanding environments
- Available in 4-position and 6-position configurations to match lab throughput needs
-
Universal voltage input (100-240 V) for use anywhere in the world
Specifications
| JLT 4 (F105A0108) | JLT 6 (F105A0109) | |
|---|---|---|
| Number of Positions | 4 | 6 |
| User Interface | Digital | Digital |
| Speed Control | Same speed for each rod | Same speed for each rod |
| Speed Range | 10-300 rpm | 10-300 rpm |
| Speed Setting Interval | 1 rpm | 1 rpm |
| Timer | 0-999 min / 0-99 hours / continuous | 0-999 min / 0-99 hours / continuous |
| Back Panel | Disconnectable illuminated | Disconnectable illuminated |
| Stirring Rods | Stainless steel, height-adjustable | Stainless steel, height-adjustable |
| Construction | Epoxy painted metal structure | Epoxy painted metal structure |
| Power Consumption | 11 W | 19 W |
| Input Voltage | 100-240 V / 50-60 Hz | 100-240 V / 50-60 Hz |
| Dimensions (W x H x D) | 645 x 347 x 260 mm (25.4 x 13.7 x 10.2 in) | 935 x 347 x 260 mm (36.8 x 13.7 x 10.2 in) |
| Weight | 13 kg (28.6 lb) | 17 kg (37.4 lb) |
Documentation:
Brochure
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Excellent Product and Exceptional Quality and Service – Highly Recommend!
I recently purchased the LISEN Car Phone Holder Mount [Military Stable] and couldn’t be more impressed! From the moment I unboxed it, I could tell it was built to last. The design is sleek and modern, and it holds my iPhone 15 Pro Max securely without any wobbling, even during bumpy rides. The military-grade stability lives up to its promise—this mount stays firmly in place, and the adjustable clamps fit my phone perfectly.
What really stood out to me was the ease of installation. It attaches to my car vent effortlessly, with no tools required, and doesn’t block any air flow, which is a huge plus. It’s also compatible with various phone models, including the latest iPhone 16, so I know it will be a long-term solution for my future upgrades.
In addition to the great product, the customer service from Linsen was outstanding. They provided timely and clear communication, answering all my questions before I made the purchase. It’s rare to experience such excellent support these days, and it made my buying experience even better.
If you’re looking for a reliable, sturdy, and easy-to-use car phone holder, this is the one to get! https://www.amazon.com/dp/B0CXLQDY5B Highly recommend!
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Reviewed in the United States on August 10, 2024
★★★★★ 4
Well made, but not a good fit for Volvo XC40
One issue with this style of holder, is that the swing arm and holder add a fair amount of weight and extends that weight away from the vent, applying quite a bit more leverage on the vent. It may not be as much of an issue on horizontal vents, but the vertical vents on an XC40 will want to swing side-to-side with all that weight.
As for the build of this particular holder, my only real gripe is the adjustment for the swing arm - after tightening the knob, there will still be some play in the arm...you have to jiggle it while tightening it down to fully secure it. The position of the release button allows one-handed removal of the phone, but really only works by pinching with your thumb on the screen. The clip for the vent accommodates relatively wide fins and the tabs can be rotated to help with stability or removed to provide more clearance (though rubberized tabs would be much more helpful).
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Reviewed in the United States on January 9, 2024
★★★★★ 5
Good solid product
Purchased in February of 2025. Very solid item. Use it constantly in our 2011 4Runner and 2017 CX5. This unit attaches firmly to vent fins in both cars. I use iPhone for maps programs and streaming music. When traveling I'm constantly rotating device 90 degrees to use phone in portrait and landscape positions. Unit has shown no signs of losing ability to firmly hold desired position despite frequent rotations. It holds firmly where you place it. Initially I had concerns about placement on dash and blocking view of radio face, clock, MPG indicator, and other displays. Didn't take too long to realize the flexibility of this thing and the many, many positions you can place it due to multiple rotational joints. Pricing was fair. If this ever wears out, I will want to buy another.
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Reviewed in the United States on December 8, 2025
★★★★★ 5
Happy with purchase, easy to install, exactly what I needed
For many years, I'd been using a similar item with a wedge-type vent mount that finally stretched out and became unusable. When searching for a replacement, I wanted to try one with a different type of mount and I looked at many brands/types of holders. This one seemed to be the best item for the price ($8.99 at the time). So far, I'm very happy with it. I got it in a timely manner, and it was exactly as advertised. I had no problems attaching the hook to the vent fin and securing it. I use it for a GPS, and since the holder is designed to stand out away from the vent a bit, my device is easier to see than previously and details are easier to read. It wobbles, occasionally, but the holder's not loose, at all, and it doesn't affect my ability to read the device. The frame is barely just big enough to hold my GPS, but so far that hasn't been a problem. The device slides into the frame easily, locks securely, and stays put. The holder pops open at the touch of a button on the back, and the device can be removed easily, without issue.
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Reviewed in the United States on December 19, 2023
★★★★★ 3
Prevents me from adjusting the air vent up or down
It's true that it doesn't block the air flow. I had to put it on the left passenger side vent to retain the ability to point the driver's air vents where I want. With it over there, I have to turn my head too far to the right when I'm driving to see my phone, and the passenger can't adjust the vent up or down. Also, phone can't tilt as far left and right as other ones. Good price, unique design, easy to install, feels sturdy, holds iPhone SE fine, and doesn't block my view of the entertainment system.
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Reviewed in the United States on March 27, 2026
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