KNACRO -50 ℃ ~ + 125℃ Digital Display Temperature Control, Precision Temperature Controller, Temperature Control switches, Miniature Thermal Control Plate DC 24V Green Led auspowers_batchfour 50 ppm (mg/L) + or

50 ppm (mg/L) + or - 3% of the reading (+ or - 0

Diameter 1/4"(6

silver contact

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KNACRO -50 ℃ ~ + 125℃ Digital Display Temperature Control, Precision Temperature Controller, Temperature Control switches, Miniature Thermal Control Plate DC 24V Green Led auspowers_batchfour 50 ppm (mg/L) + orKNACRO 50 ~ + 125 Digital Display Temperature Control, Precision Temperature Controller, Temperature Control switches, Miniature Thermal Control Plate DC 24V Green Led Indicator and digital tube status description: Indicator light: Off means the relay is off, and always on means the relay is closed Digital tube: " " is displayed. 1. Check the temperature sensor is missing or damaged. 2. High temperature protection in heating mode . 3. Low temperature