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The SP1848-27145 Peltier sensor generates electricity when there is a temperature difference between its two sides. The cold side is marked “Colding,” while the hot side is unmarked. The red wire connects to the positive terminal and the black wire to the negative terminal.
The unit has no moving parts and is compact and lightweight. The cable is approximately 30 cm long. Typical open-circuit readings are 0.97 V and 225 mA at a temperature difference of 20 °C, 1.8 V and 368 mA at 40 °C, 2.4 V and 469 mA at 60 °C, 3.6 V and 558 mA at 80 °C, and 4.8 V and 669 mA at 100 °C. In actual use, the wiring and voltage-boosting board may cause current loss.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.