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Description
Knox Argon VM II 4000 3KW Off Grid Solar Inverter With PV 4000WKnox Argon VM II 4000 3KW Off Grid Solar Inverter with PV 4000W The Knox Argon VM II 4000 is an efficient off grid solar inverter designed for small to medium off grid solar systems. Featuring a robust IP21 rated design, it ensures reliable indoor use with easy installation and live monitoring capabilities. Key Features IP21 rated Design for Indoor Use: Ideal for protected indoor environments, ensuring durability and safety with resistance to dust and
Knox Argon VM II 4000 3KW Off-Grid Solar Inverter with PV 4000W
The Knox Argon VM II 4000 is an efficient off-grid solar inverter designed for small to medium off-grid solar systems. Featuring a robust IP21-rated design, it ensures reliable indoor use with easy installation and live monitoring capabilities.
Key Features
- IP21-rated Design for Indoor Use: Ideal for protected indoor environments, ensuring durability and safety with resistance to dust and water splashes.
- 4000W PV Input: Perfect for bifacial solar panels, enabling higher energy generation and better performance in various lighting conditions.
- Wide MPPT Voltage Range (60 – 450V): Provides flexibility in solar panel selection and ensures efficient energy conversion across a variety of system setups.
- Quick & Easy Installation: Designed for fast and simple installation using standard tools, saving both time and effort.
- Easy Commissioning & Monitoring: Equipped with an LED screen for live monitoring, providing real-time access to system performance and settings.
The Knox Argon VM II 4000 is a reliable choice for off-grid solar power applications, offering ease of use, high efficiency, and durable performance.
Technical Data Sheet:
| Rated Power | 3000VA/3000W |
| INPUT | |
| Voltage | 230 VAC |
| Selectable Voltage Range | 170-280 VAC (For Personal Computers) ; 90-280 VAC (For Home Appliances) |
| Frequency Range | 50 Hz/60 Hz (Auto sensing) |
| OUTPUT | |
| AC Voltage Regulation (Batt. Mode) | 230VAC ± 5% |
| Surge Power | 6000VA |
| Efficiency (Peak) | 93% |
| Transfer Time | 10 ms (For Personal Computers) ; 20 ms (For Home Appliances) |
| Waveform | Pure sine wave |
| BATTERY | BATTERY |
| Battery Voltage | 24 VDC |
| Floating Charge Voltage | 27 VDC |
| Overcharge Protection | 32 VDC |
| SOLAR CHARGER & AC CHARGER | |
| Solar Charger Type | MPPT |
| Maximum PV Array Open Circuit Voltage | 450VDC |
| Maximum PV Array Power | 4000W |
| MPP Range @ Operating Voltage | 60 ~ 400 VDC |
| Maximum Solar Charge Current | 100 A |
| Maximum AC Charge Current | 80A |
| Maximum Charge Current | 100A |
| PHYSICAL | |
| Dimension, D x W x H (mm) | 120 x 300 x 440 |
| Net Weight (kgs) | 10 |
| Communication Interface | RS232/RS485, optional WiFi |
| ENVIRONMENT | ENVIRONMENT |
| Humidity | 5% to 95% Relative Humidity (Non-condensing) |
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -15°C to 60°C |
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
4.1 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
odd shape but dogs are constantly chewing on it
seems to be an odd shape but my large dogs constantly chew on this. holds up to chewing well.
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Reviewed in the United States on October 17, 2025
★★★★★ 4
Keeps my dog busy
My dog has so much fun getting peanut butter out of this chew! It has small holes so it makes them put a little more effort than a typical chew. I would say it keeps them occupied for at least 15-20 minutes and they get pretty tired after. I think it's a good size for my medium dog. One thing i wish they did was making it with a silicone rather than nylon. It does get chewed off and I don't like the fact that they are ingesting them. All in all it's a great design to keep than busy.
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Reviewed in the United States on March 17, 2025
★★★★★ 5
Seriously durable
I have 3 XXL dogs (how convenient this comes in a three pack!). They will destroy many toys marked for aggressive chewers, but not these. Plus, they are good sized, leaving room for me to hold them while they are chewing when I elect to do that.
I don't really smell anything in the toy itself. Maybe the dogs do, but not enough to keep their interest more than a few minutes. However, when I smeared it with peanut butter, it was a whole new story. All 3 of them LOVED that and spent some time getting every last morsel of peanut butter out of the toy. In the meantime, because of the honeycomb texture, I feel they were getting a decent dose of tooth cleaning as well.
I wish the texture were a little deeper to fit more peanut butter, but I suppose it is probable that would make the surface texture less durable.
My dogs like them, so I do too!
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Reviewed in the United States on February 20, 2025
★★★★★ 5
Best chew toy for a small dog
My Pomchi puppy was chewing on anything and everything, including me. He had a million other toys that he just didn’t care about. This is small and perfect for his tiny, ferocious mouth. It seems very durable so far and believe me, he doesn’t go easy on this thing. It’s hard enough that I can tell it feels good on his tiny, razor sharp teeth. The bone keeps him busy all throughout the day, and it doesn’t squeak, which is good because squeaky toys freak him out. I highly recommend this if you have a tiny, teething monster.
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Reviewed in the United States on September 27, 2025
★★★★★ 5
Pomeranian perfect size
Small size perfect Pomeranian (1 yr old) she prefers over other chews - have ordered twice
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Reviewed in the United States on April 10, 2026