Power supplies

Power supplies are instruments that deliver regulated electrical power to laboratory equipment, protecting sensitive instrumentation from voltage fluctuations and supplying the controlled current that certain techniques demand. The Questpair catalogue lists 1302 power supplies from 19 verified suppliers and distributors across 11 countries, in new, used and refurbished condition. 96 percent of the listings are used, the remainder new. Prices range from EUR 1 to EUR 81.785, a spread that reflects how far this category stretches, from a single surge protector to a high-capacity laboratory backup system. The group covers everything from bench units powering an electrophoresis run to the uninterruptible supplies that keep an entire instrument rack alive through an outage.