LabServ™ LS-I72 / LS-I201 General Purpose Incubator

Overview

The LabServ™ LS-I72 and LS-I201 General Purpose Incubators are precision-engineered benchtop and floor-standing environmental chambers designed for reliable, stable thermal control in life science laboratories. Built by Thermo Fisher Scientific and distributed under the LabServ™ brand, these incubators operate on natural convection airflow—eliminating forced-air turbulence that may disturb sensitive biological samples such as bacterial cultures, mammalian cell monolayers, or enzymatic assays. The core measurement principle is closed-loop PID temperature regulation, ensuring high reproducibility across repeated experiments. With a working temperature range from ambient +5 °C to 60 °C, they support routine applications including microbial growth, seed germination, biochemical incubation, and stability testing of pharmaceutical intermediates where strict thermal consistency—not humidity control—is the primary requirement.

Key Features

• Natural convection air circulation architecture minimizes mechanical stress on delicate biological specimens and eliminates cross-contamination risks associated with fan-driven systems.
• PID-based digital temperature controller with LED display enables precise setpoint adjustment (0.1 °C resolution) and real-time monitoring of chamber conditions.
• Stainless steel (AISI 304) interior surfaces ensure corrosion resistance, ease of decontamination, and compliance with GLP laboratory hygiene standards.
• 180° full-opening door facilitates unobstructed access for loading/unloading multi-tiered sample racks, Petri dishes, or flasks without spatial constraints.
• Dual safety mechanisms include independent over-temperature cutoff and electrical short-circuit protection—critical for unattended overnight operation.
• Modular panel construction with powder-coated steel exterior provides structural rigidity and long-term dimensional stability under continuous thermal cycling.
• Two capacity options (72 L and 201 L) accommodate diverse workflow scales—from academic teaching labs to QC environments requiring batch processing.

Sample Compatibility & Compliance

The LS-I72/LS-I201 incubators are validated for use with standard microbiological vessels (e.g., Petri dishes, test tubes, culture flasks), tissue culture plates, and small-volume reagent containers. Their natural convection design avoids desiccation artifacts common in fan-assisted units, making them suitable for non-humidified incubation protocols per ISO 13408-1 (sterile processing) and USP (sterility assurance). While not certified for regulated humidity control, their temperature uniformity of ±0.1 °C at 37 °C meets ASTM E122-22 requirements for statistical sampling of thermal performance in laboratory equipment. The stainless steel chamber complies with FDA-recommended material specifications for equipment contacting pharmaceutical manufacturing components.

Software & Data Management

These models operate via embedded hardware-based PID logic without external software dependency—ensuring deterministic response time and eliminating cybersecurity vulnerabilities inherent in network-connected controllers. All operational parameters (setpoint, actual temperature, elapsed time) are displayed locally on the LED interface. For audit-trail compliance in GMP environments, optional external data loggers (e.g., compliant with 21 CFR Part 11 via third-party validation) may be integrated using analog voltage output (0–5 V DC) available on terminal blocks. No proprietary firmware updates or cloud connectivity are required—supporting legacy system integration and minimizing IT infrastructure overhead.

Applications

• Bacterial and fungal culture maintenance (E. coli, S. aureus, C. albicans) under standardized ISO 8573-1 Class 4 air quality conditions.
• Enzyme activity assays requiring thermal stability within ±0.3 °C over 24-hour durations.
• Seed viability testing per ISTA guidelines, where gentle convective heating prevents embryo damage.
• Accelerated stability studies for excipients and APIs under ICH Q1A(R2) non-refrigerated storage conditions.
• Pre-incubation of ELISA plates prior to assay development in clinical diagnostics labs.
• Material aging tests for polymers and adhesives per ASTM D3045 (heat aging of plastics).

FAQ

Does this incubator support programmable ramp-soak profiles?
No—these models feature fixed-setpoint PID control only. For multi-stage thermal protocols, external programmable timers or PLC-integrated relay modules are recommended.
Is humidity control available as an add-on option?
No—humidity is not engineered into this product line. For combined temp/humidity applications, consider Thermo Fisher’s Heracell series or Forma 3110 models.
What calibration documentation is provided?
Each unit ships with a factory-verified temperature uniformity report at 37 °C and a NIST-traceable certificate of conformance for controller electronics.
Can the incubator be installed in a cleanroom environment?
Yes—the absence of internal fans, sealed stainless steel chamber, and low particulate emission profile allow installation in ISO Class 7 (10,000) cleanrooms when paired with appropriate HVAC filtration.
Are replacement shelves and accessories available through authorized channels?
Yes—standard perforated stainless steel shelves (part numbers LBS#111113101 and LBS#111113201) and custom-fit silicone gaskets are stocked globally via Thermo Fisher’s distributor network.