This Henry Troemner Heatblock 2 Digital Dry Dual Block Heater 949302 12621-088 is in excellent, like new condition, has been tested and is guaranteed to be fully functional. This item came from a local lab that had surplus lightly used equipment. Please feel free to contact us with any questions. Troemner Henry Digital Dry Block Heaters 949302 Product Info Troemner Henry Digital Dry Block Heaters is a reliable and dependable addition to the Troemner Henry Baths, Ovens, Incubators, and Cryogenics Storage imagefamily of products. Combining top-notch and uncompromising quality with an affordable price, the Troemner Henry Digital Dry Block Heaters 949302/ 12621-088 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Exceptional Temperature Uniformity and Accuracy Hold Interchangeable, Modular Heating Blocks Heat to 120C Optional External Temperature Probe LED Display These multi-purpose units are ideal for incubation and activation of cultures, enzyme reactions, blood urea nitrogen determinations, immunoassays, melting/boiling points, and a wide variety of other laboratory procedures. The economical, versatile, and compact block heaters are designed for applications that require repeatable results and superior temperature stability. Each of the five models accepts separate interchangeable modular blocks, which accommodate various sample enclosures such as vials, microplates, PCR? strips, and a wide variety of tubes. Each block has a thermometer well, and features close tube-and-block contact for maximum heat retention. Easy-to-use front-mounted controls with independent LED displays show actual and set point temperatures. Microprocessor control offers a stability of 0.1C, while independent controls allow users to adjust temperature settings in 0.1C increments. A timer will display elapsed time or when programmed to user-defined limit, will count down to zero and shut off unit. Audible alarm will sound when time reaches zero. All dry block heaters include a built-in support rod holder for mounting the probe kit. Optional external temperature probe kit monitors actual block or sample temperature. An LED display on the front panel will show actual probe temperature and adjust heater output to maintain user-defined set point. Kit includes 20.3cm (8") stainless steel probe, 45.7cm (18") vertical support rod, thermometer/probe extension clamp, and hook connector. All 120V units are UL and C-UL listed and CE marked.