Climet Instruments equipment
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Climet Instruments is an American manufacturer of cleanroom environmental monitoring and validation equipment, founded in 1962 in Silicon Valley, California, to build particle counters for cleanroom use. The company is now headquartered in Redlands, United States, and operates under Venturedyne Ltd. Its range covers airborne particle counters, microbial air samplers, and continuous monitoring systems, with product lines including the CI-97 Microbial Air Sampler and the CI-3100 Trident RS remote particle sensor. On Questpair, 81 used Climet listings are available from 5 verified suppliers and distributors.
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Climet Instruments product list
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About Climet Instruments
Climet Instruments is an American manufacturer of cleanroom environmental monitoring and validation equipment, founded in 1962 in Silicon Valley, California, specifically to build particle counters for cleanroom environmental monitoring. The company is headquartered in Redlands, United States. It operates under Venturedyne Ltd., which was formed when an officer of WEHR Corporation acquired Climet and other WEHR divisions. Its primary categories are airborne particle counters, microbial air samplers, cleanroom environmental monitoring equipment, and continuous monitoring systems. Named product lines include the CI-97 Microbial Air Sampler, the CI-3100 Trident RS remote particle sensor, and the CI-x5x series of particle counters. These instruments measure the particulate and microbial content of controlled air, which is the core work of cleanroom classification and environmental monitoring.
Climet particle counters and air samplers
Airborne particle counters are the class Climet was founded on, and they remain the centre of the range. A particle counter draws a known air volume through a sensing chamber and counts and sizes the particles it carries, which is how a cleanroom is classified and how it is checked against that classification over time. The CI-x5x series covers this counting function, while the CI-3100 Trident RS is a remote sensor built for continuous monitoring installations, where fixed sensors feed data to a central system rather than a technician carrying a handheld unit between locations. The two architectures answer different needs: one for spot measurement and audit, the other for always-on surveillance of a critical space.
The CI-97 Microbial Air Sampler covers the viable side of the same task. It is used in environmental monitoring programmes that have to account for living organisms, not just inert particles, which places it in microbiology and in the sterile and aseptic manufacturing areas that fall under biotechnology and life sciences work. Viable air sampling supports cleanroom microbiology in pharmaceutical and biomanufacturing settings, where a monitoring plan combines particle counts with microbial air samples to characterise the environment fully. The sampler is also used for environmental monitoring in sterile cell culture suites and aseptic fill lines, where airborne contamination is a direct risk to the product. In those settings the instrument is one part of a validation and routine-monitoring regime rather than a standalone test.
Across the brand, the field at work is cleanroom environmental monitoring: the measurement and documentation of air quality against a defined standard. The instruments serve that process whether the deliverable is an initial classification, a periodic requalification, or a continuous data record.
Climet equipment on Questpair
The Questpair catalogue lists 81 Climet items, all of them used. 100 percent of the listings are used, so there is no new stock in this pool, and each unit should be evaluated on its calibration, sensor, and firmware condition. Prices range from EUR 1.479 to EUR 4.675. The average listing sits at EUR 2.480. The equipment comes from 5 verified suppliers and distributors across 2 countries.
Where a listing needs supporting documentation, a buyer can contact Questpair and specialists respond within one hour. Parts can be sourced via Questpair. A warranty is often possible and is arranged in consultation for the specific listing rather than set as a fixed term. For a buyer standardising a cleanroom monitoring programme on a single maker, the practical value of the catalogue is that both the particle counters and the microbial samplers appear in one place, so a monitoring set can be assembled from the same source and assessed against the same used-instrument criteria.
Questpair review of Climet Instruments
Our take based on listings data and supplier feedback
Climet Instruments occupies a defined corner of the laboratory and cleanroom market: airborne particle measurement and the viable sampling that sits next to it. The company has done this since 1962, and the Questpair catalogue reflects that focus rather than a broad instrument range. What follows weighs the three points above against what the listings actually show.
The first point concerns the particle counters themselves, the instruments the company was built around. Particle counting underpins cleanroom classification, so the CI-x5x series and the CI-3100 Trident RS remote sensor serve a specific regulatory function: counting and sizing particles in controlled environments to verify that a room meets its stated class. The Trident RS is a remote sensor rather than a portable handset, which places it in continuous monitoring installations where sensors feed a central system rather than being carried room to room. A buyer should check which of the two architectures a given listing represents, because a remote sensor and a portable counter are not interchangeable in a monitoring programme.
The second point, microbial air sampling, is where the catalogue widens. The CI-97 Microbial Air Sampler draws a measured air volume across a growth medium so that viable organisms can be cultured and counted. Particle counting tells you how many particles are present; it does not tell you whether any of them are living. A monitoring programme in a pharmaceutical or sterile-fill environment needs both measurements, and Climet covering the two under one maker is a practical convenience for a lab standardising on a single supplier's service and calibration routines. On Questpair the microbial samplers appear alongside the particle counters, so a buyer assembling a monitoring set can source both from the same catalogue.
The third point is the condition and price of the listings, and here the data is unambiguous. 100 percent of the listings are used. There is no new stock in the Climet pool on Questpair, which means every unit should be assessed as a used instrument: calibration status, firmware, and sensor condition matter more here than they would for a new purchase. Prices run from EUR 1.479 to EUR 4.675. The average sits at EUR 2.480, which gives a sense of where the bulk of the range falls between the entry listings and the complete remote-sensor systems. Warranty is not a fixed term on these listings; it is arranged in consultation for the specific unit, so a buyer who wants cover should raise it against the listing rather than assume it.
The listings come from 5 verified suppliers and distributors across 2 countries. For a buyer validating a cleanroom, the useful read is that Climet on Questpair is a used-instrument market in a narrow, well-defined instrument class, and the decision is less about which maker and more about the specific condition and configuration of the unit in front of you.
**Cleanroom particle counting as the core line**
Climet builds airborne particle counters for cleanroom classification and environmental monitoring, the instrument class the company was founded on in 1962.
**Microbial air sampling alongside particle work**
The CI-97 Microbial Air Sampler extends the catalogue beyond particle counting into viable air sampling, covering two of the measurements a cleanroom monitoring programme needs.
**A used-only listing pool at sub-new pricing**
Every Climet item on Questpair is listed used, from 5 verified suppliers and distributors, at prices below what the same instruments cost new.
Frequently asked questions
Where can I find manuals and documentation for Climet instruments?
If a listing lacks the documentation you need, contact Questpair and specialists respond within one hour. For a used particle counter or microbial sampler, the calibration certificate and firmware details are the records worth requesting before purchase.
How much does Climet equipment cost?
On Questpair, Climet listings range from EUR 1.479 to EUR 4.675, with the average at EUR 2.480. Price depends heavily on the instrument class, the sensor condition, and how recently the unit was calibrated.
What is the difference between refurbished and used Climet units?
Both used and refurbished Climet instruments are listed below the price of new. Beyond price, assess each listing individually on its calibration status, sensor condition, and firmware, since these determine whether a unit is ready for a monitoring programme.
Is there a warranty on used Climet instruments?
A warranty is often possible and is arranged in consultation for the specific listing rather than set as a fixed term. Because terms are not central, check the individual listing and raise the question with the supplier before you commit.
Are Climet instruments suitable for clinical or research use?
Climet airborne particle counters and the CI-97 Microbial Air Sampler are built for cleanroom environmental monitoring, which covers sterile and aseptic manufacturing, cell culture suites, and aseptic fill lines in pharmaceutical and biomanufacturing work. They measure particulate and microbial content of controlled air against a defined standard, which places them in validation and routine monitoring regimes rather than general laboratory analysis.
How long do Climet particle counters last?
A particle counter's working life depends on the sensor and the laser diode, which degrade with use, and on continued calibration to keep counts accurate. A used unit that has been calibrated and serviced on schedule can stay in service for many years, so the maintenance history matters more than age alone.
Can I get parts for Climet equipment?
Parts for Climet instruments can be sourced via Questpair. For a particle counter, the sensor and optical components are the parts most likely to need replacement, so confirm their condition against the specific model when you enquire.
What are the alternatives to Climet for cleanroom monitoring?
Climet competes with other makers of airborne particle counters, microbial air samplers, and continuous monitoring systems. The relevant comparison depends on whether you need handheld spot measurement, a remote sensor for a fixed installation like the CI-3100 Trident RS, or a viable air sampler like the CI-97, since those answer different monitoring needs.
What is the lead time on a used Climet instrument?
Lead time depends on the individual supplier and the unit's calibration state, since a counter may need recalibration before dispatch. The listings come from 5 verified suppliers and distributors, so ask the specific seller for a shipping estimate.
What is the difference between parts and spares when ordering?
In practice the terms overlap: both refer to replacement components such as sensors, pumps, or optical elements for a Climet unit. When enquiring through Questpair, name the exact model and the component you need so the right part is identified.
Do Climet listings ship internationally?
The Climet equipment on Questpair comes from 5 verified suppliers and distributors across 2 countries, so cross-border shipping is common. Confirm shipping terms and any import handling with the individual supplier for your destination.
What product lines does Climet make and how do they differ?
Climet's named lines include the CI-x5x series particle counters for counting and sizing airborne particles, the CI-3100 Trident RS remote particle sensor for continuous monitoring installations, and the CI-97 Microbial Air Sampler for viable air sampling. The counters handle inert particles for classification and audit, the Trident RS feeds fixed data to a central system, and the CI-97 captures living organisms for microbial monitoring.
Which Climet instrument types are listed here and in what condition?
The Questpair catalogue holds 81 Climet items, all of them used, with 100 percent used. The types that appear include microbial air samplers, portable particle counters, environmental monitoring equipment, laser particle counters, airborne particle counters, and cleanroom monitoring instruments, each to be judged on its own calibration and sensor condition.
What separates the cheapest Climet listings from the most expensive?
The spread from EUR 1.479 to EUR 4.675 tracks the instrument class and its state: a single handheld portable particle counter sits at the lower end, while a remote sensor for a continuous monitoring system or a recently calibrated microbial sampler sits higher. Sensor condition, firmware, and how current the calibration is also move a unit's price within the same class.
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