Sold
Our specialists can find you another one, the same model or a close equivalent, and send you a quote within one hour.
Multiblock PCR thermal cycler with four swappable blocks, gradient control, ±0.3°C accuracy, and real-time temperature monitoring.
The MJ Research PTC-225 DNA Engine Tetrad is a robust multiblock PCR thermal cycler designed for high throughput molecular diagnostics and biotechnological workflows. It features four interchangeable alpha blocks enabling simultaneous PCR cycling of multiple samples without compromising temperature accuracy or uniformity. Key technical specifications include a thermal range of -5°C to 105°C, thermal accuracy of ±0.3°C at 90°C, and thermal uniformity within ±0.4°C in 30 seconds, supporting consistent amplification results essential for gene editing and molecular cloning workflows.
This system supports both gradient and non-gradient thermal cycling, suitable for optimizing PCR protocols critical in synthetic biology and molecular diagnostics research. The integrated high-density display paired with intuitive point-and-click onboard software navigation facilitates precise control and monitoring. Real-time temperature feedback ensures reliability during delicate bioprocessing steps. Connectivity options include an 8-bit parallel printer port and RS-232 serial interface for seamless integration into laboratory data management systems.
Weighing approximately 30 kg, the PTC-225 is suited for biopharmaceutical production pipelines requiring robust, flexible PCR platform solutions. Despite cosmetic wear, this preowned unit maintains full functionality and is widely used in biotechnology research fields such as cell imaging support assays and neurogenetics studies. Note: power supply and computer interface are not included.
This thermal cycler is essential for molecular cloning workflows, widely adopted in synthetic biology research, and critical in biopharmaceutical production pipelines where reproducible PCR results and high throughput capabilities are paramount.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.
We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 19 October 2026
