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Description
IKA Microstar Digital Overhead StirrersOverview New and easy to use stirrers convince with perfect basic functionalities, as well as with a compact design. Combining high performance with particular excellence, they require minimum space and come with a lifetime guarantee. The reduced design and the focus on the most essential aspects make the new IKA MICROSTAR stirrers reliable laboratory companions. All models of the IKA MICROSTAR series guarantee a constant torque over the entire rpm
Overview
New and easy-to-use stirrers convince with perfect basic functionalities, as well as with a compact design. Combining high performance with particular excellence, they require minimum space and come with a lifetime guarantee. The reduced design and the focus on the most essential aspects make the new IKA MICROSTAR stirrers reliable laboratory companions. All models of the IKA MICROSTAR series guarantee a constant torque over the entire rpm range. The new devices are available in different versions with rpms of up to 2,000 rpm and a torque of up to 30 Ncm.
Features:
- Operation takes place using a stable rotary knob.
- The display clearly shows the rotational speed.
- Regular software updates can be undertaken rapidly and simply via the USB interface.
Key Attributes
| Maximum volume (L): | 5, 10, or 20 L |
| Minimum Volume (L): | N/A |
| Speed max (rpm): | 2000, 1000, or 500 |
| Speed min (rpm): | 50 |
| Max temperature (◦C): | N/A |
| Plate: | N/A |
| Plate material: | N/A |
| Torque max (Ncm): | 7.5, 15, or 30 |
| Controls: | Digital |
| Timer: | Yes |
| Programmable: | No |
| Reverse rotation: | No |
| Warranty (years): | 2 |
| Weight (lbs): | 2.78 |
| Dimensions Width (in): | 2.36 |
| Dimensions Height (in): | 6.8 |
| Dimensions Length (in): | 5.35 |
Manufacturer Specifications
| Model | MICROSTAR 7.5 digital | MICROSTAR 15 digital | MICROSTAR 30 digital |
| Stirring quantity max. per stirring position (H2O) | 5 l | 10 l | 20 l |
| Motor rating input | 32 W | 32 W | 32 W |
| Motor rating output | 22 W | 22 W | 22 W |
| Motor principle | Brushless DC | Brushless DC | Brushless DC |
| Speed display | LED | LED | LED |
| Speed range | 0/50 - 2000 rpm | 0/50 - 1000 rpm | 0/50 - 500 rpm |
| Viscosity max. | 4000 mPas | 8000 mPas | 20000 mPas |
| Output max. at stirring shaft | 15.7 W | 15.7 W | 15.7 W |
| Permissible ON time | 100% | 100% | 100% |
| Torque max. at stirring shaft | 7.5 Ncm | 15 Ncm | 30 Ncm |
| Speed control | Turning knob | Turning knob | Turning knob |
| Setting accuracy speed | ±1 rpm | ±1 rpm | ±1 rpm |
| Deviation of speed measurement n > 300rpm | ±1 % | ±1 % | ±1 % |
| Deviation of speed measurement n < 300rpm | ±3 rpm | ±3 rpm | ±3 rpm |
| Stirring element fastening | chuck | chuck | chuck |
| Chuck range diameter | 0.5 - 8.2 mm | 0.5 - 8.2 mm | 0.5 - 8.2 mm |
| Hollow shaft, inner diameter | 8.5 mm | 8.5 mm | 8.5 mm |
| Hollow shaft (push-through - when stopped) | yes | yes | yes |
| Fastening on stand | extension arm | extension arm | extension arm |
| Extension arm diameter | 13 mm | 13 mm | 13 mm |
| Extension arm length | 160 mm | 160 mm | 160 mm |
| Nominal torque | 0.075 Nm | 0.15 Nm | 0.3 Nm |
| Timer display | none | none | none |
| Housing material | alu-cast coating / thermoplastic polymer | ||
| Dimensions (W x H x D) | 60 x 173 x 126 mm | ||
| Weight | 1.18 kg | 1.26 kg | 1.26 kg |
| Permissible ambient temperature | 5 - 40 °C | 5 - 40 °C | 5 - 40 °C |
| Permissible relative humidity | 80% | 80% | 80% |
| Protection class according to DIN EN 60529 | IP 54 | IP 54 | IP 54 |
| USB interface | yes | yes | yes |
| Voltage | 100 - 240 V | 100 - 240 V | 100 - 240 V |
| Frequency | 50/60 Hz | 50/60 Hz | 50/60 Hz |
| Power input | 32 W | 32 W | 32 W |
| Power input standby | 0.3 W | 0.3 W | 0.3 W |
| DC Voltage | 24 V= | 24 V= | 24 V= |
| Current consumption | 1300 mA | 1300 mA | 1300 mA |
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
4.8 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Classic and functional
Color: Stainless Mesh/ Blue Dial
High quality and affordable watch. Love the mesh band. It’s a classic, functional everyday look. Easy to adjust, and never runs out of power. Perfect for men who have smaller wrists. Bought for my husbands birthday, and he loves it.
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Reviewed in the United States on July 31, 2025
★★★★★ 5
Everything as expected
Color: Stainless Mesh/ Blue Dial
It's a nice watch added to the collection, looks really good on hand, the metallic mesh band is very elegant and also customizable, so it will fit perfectly on your hand.
It seems that it had a bit of charge out of the box, but I'll leave it under a direct (under 20cm distance) LED desk lamp to recharge overnight, I'll also leave them under sunlight around the windows whenever possible (at least for the first week or so), it's stated in the online manual that it will need ~45 hours to fully charge on a cloudy day under the sunlight.
By the way, it would've been nice to have the manual in the box, but at least it's easy to find the (generic) manual in their website.
The fluorescence of the hands and hour dots are really bright and mine had nice bluish color.
Of the features, the chronograph works perfectly as expected, the manual also states to set the time 5 minutes ahead of the real time then slowly rewind back to the current time whenever setting the time, for the time keeping to be more accurate because of some gear movements inside.
To be honest, it would be great to see Citizen use scratch resistant sapphire instead of some mineral as the face protective layer, as they do for other high-end models, the technology is not new and I think it wouldn't make it that much more expensive, I hope this one will be resistant enough🤞🏻
Overall, this is the first day I received the watch, I'm quite happy with my purchase, it's nice knowing you won't need to replace the battery anytime soon 😛
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Reviewed in the United States on December 12, 2023
★★★★★ 5
Great World Time Watch!
Color: Stainless/ Black Dial
The usual quality Citizen construction, Eco-Drive, and a very handy world time bezel. FIVE STARS!
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Reviewed in the United States on February 8, 2026
★★★★★ 4
Great watch for the money
Color: Stainless Mesh/ Blue Dial
Looks great. I swapped out the band for a leather strap. Nice watch, well designed. My other eco drive has been going strong for 15 years or so without a hitch. So I have high expectations for this one.
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Reviewed in the United States on January 9, 2024
★★★★★ 5
Great Gift
Color: Stainless Mesh/ Blue Dial
It was a gift for my Dad but he loved it! Very worth it
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Reviewed in the United States on April 23, 2026