Balboa 30296 Temperature and Hi Limit Sensor in one kit, Two leads 96" long, one 1/4" diameter bulb and one 3/8" diameter bulb. 4 pin end connector plugUse this handy chart to test the temperature sensors ohms reading at various temperatures. Use a digital meter with sharp points. Ohms Temperature, 14.1K 110F, 14.7K 108F, 15.4K 106F, 16.2K 104F, 17.2K 101F, 18.1K 99F, 20.2K 94F, 25.5K 84F, 30.0K 77F, 40.0K 65F, 55.0K 53F, 95.0K 32F

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