... operating temp:-10C--+70C 4.model:cool or heat/cool 5.SafetyApproved:RoHS FF-Peltier--Thermoelectric Cooler Air to AirFeatures:1 ... compliance RoHS4, Free mounting, applicable to a variety of places.5, Working ambient temperature: -10C~+70C6, Dense fin extrusion heat sink ... 8, Hot-side heat sink overheat protection temperature setting +75 C± 5 C9, Applied in sealing, vibration or rotation places such as ...