This versatile immersion circulator can be used in several ways. Use as a stand-alone water bath temperature controller, a pump for recirculating chilled liquid from an external chiller, or a pump for providing temperature control to an external device. The basic digital circulator digital LED display, ±0.01°C stability, overtemperature indicator light, pressure pump, and low-liquid level cutoff. Reach below ambient temperatures by using the cooling coil 12122-87 connected to an external chiller.†Requires external cooling coil, dip cooler, or flow cooler to get to temperatures below ambient.Please Note: Effective June 2022, the Techne High-Stability Digital Immersion Circulator Model number FTE10DPC has now been rebranded Cole-Parmer under Model number IC-300-10DPC. All the same great features and specifications, just with a new and improved look.