Yoyilab MJ-70F-I Mold Incubator with LCD Display

Overview

The Yoyilab MJ-70F-I Mold Incubator is a precision-engineered, forced-air laboratory incubator designed specifically for controlled fungal growth, microbial culture maintenance, and environmental stability testing in life science and quality control laboratories. Built upon the principles of convective thermal equilibrium and sterile chamber management, this unit employs a microcomputer-based PID temperature regulation system to maintain consistent thermal conditions across its 70 L stainless-steel working chamber. Its operational range spans 0–65 °C—enabling both mesophilic and thermotolerant mold propagation—and incorporates an integrated ultraviolet (UV-C, 254 nm) sterilization module positioned at the chamber ceiling to continuously decontaminate recirculated air, significantly reducing airborne microbial load during extended incubation cycles. The MJ-70F-I conforms to standard methodologies referenced in ISO 8513 (microbiological examination of water), ASTM D3273 (resistance to fungal growth on coatings), and USP / (microbial enumeration and absence tests), making it suitable for GLP-compliant environmental monitoring and pharmaceutical stability studies.

Key Features

• Forced convection airflow system ensures rapid thermal equilibration and minimizes vertical/horizontal temperature gradients within the chamber
• High-visibility 5.7-inch LCD interface displays real-time setpoint, actual chamber temperature, elapsed time, and timer status—all simultaneously in a single-screen menu layout
• Double-door structure with insulated glass viewport maintains thermal integrity during observation; inner door gasket seals prevent condensation and cross-contamination
• Interior constructed from electropolished 304 stainless steel with radius-corner design for seamless cleaning and reduced microbial retention sites
• Adjustable stainless-steel shelving (2 standard trays included) supports flexible sample loading configurations and accommodates Petri dishes, slant tubes, multi-well plates, and culture flasks
• Robust cold-rolled steel exterior with epoxy powder coating provides mechanical durability and resistance to laboratory chemical exposure
• Integrated safety architecture includes dual-stage over-temperature protection: primary PID controller with deviation alarm and independent mechanical high-limit cut-off switch
• Power failure recovery function retains user-defined parameters and resumes operation automatically after grid interruption, preserving experimental continuity

Sample Compatibility & Compliance

The MJ-70F-I supports a broad spectrum of biological and material samples requiring stable, contamination-controlled environments—including Aspergillus niger, Penicillium chrysogenum, and Candida albicans cultures used in antifungal efficacy testing; BOD5 vials in wastewater analysis per Standard Methods 5210B; and polymer-coated substrates evaluated under ASTM G21. Its stainless-steel interior meets FDA-recommended surface finish criteria (Ra ≤ 0.8 µm) for cleanroom-compatible equipment. While not humidity-controlled (unlike the MJ-XX-II series), the MJ-70F-I operates efficiently in ambient humidity ranges typical of climate-controlled labs (30–70% RH). It complies with IEC 61010-1:2010 for electrical safety and carries CE marking for conformity with EU Low Voltage and EMC directives. No refrigerants containing CFCs or HCFCs are used—aligning with Montreal Protocol phase-out requirements.

Software & Data Management

The MJ-70F-I supports optional RS485 serial communication (Modbus RTU protocol) for integration into centralized lab monitoring networks. When paired with the optional data logging software package, users can configure automated temperature logging intervals (1–3600 seconds), generate CSV-exportable trend reports, and apply digital audit trails compliant with FDA 21 CFR Part 11 requirements—including electronic signatures, user access levels, and immutable event timestamps. The optional multi-stage programmable controller enables up to 99 cycles, each comprising 30 segments with individual ramp/soak profiles—ideal for simulating seasonal humidity-temperature stress sequences in material biodegradation studies. All firmware updates are performed via secure USB interface with version-locked validation.

Applications

• Fungal susceptibility testing and strain preservation in clinical microbiology and food safety labs
• BOD5 incubation for municipal and industrial wastewater compliance reporting (EPA Method 405.1)
• Antimicrobial efficacy evaluation of building materials, textiles, and medical device packaging per ISO 22196 and JIS Z 2801
• Plant tissue culture pre-incubation and spore germination assays in agricultural research
• Accelerated aging studies of pharmaceutical excipients and dosage forms under ICH Q1A(R2) guidelines
• Environmental simulation for electronics reliability testing (e.g., MIL-STD-810H fungal resistance verification)

FAQ

Does the MJ-70F-I include humidity control?
No—the “F” designation indicates a fluorine-free refrigeration system, not humidity regulation. For programmable humidity capability, consider the MJ-XX-II series.
What is the maximum allowable ambient operating temperature?
The unit is rated for continuous operation in ambient environments up to 32 °C, provided adequate ventilation clearance (≥10 cm on all sides) is maintained.
Can the UV lamp be operated independently of the heating cycle?
Yes—UV sterilization can be activated manually before or after incubation without affecting temperature settings or timing functions.
Is calibration traceability available?
Factory calibration certificates (NIST-traceable reference sensors) are available as a paid option; field recalibration is supported via front-panel sensor offset adjustment.
What safety certifications does the MJ-70F-I hold?
It meets IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and carries CE marking for EMC Directive 2014/30/EU and LVD Directive 2014/35/EU.