M12 5-pin plug and socket (for signal/supply)$141.00 For 6651, 6681 Call us for a quote Product Model: 0554 6682 M12 5-pin plug and socket (for signal/supply) quantity Add to cart SKU: 0554 6682 Category: Testo Sensors Parts & Accessories Tag: Testo Sensors Parts & Accessories Description Description For 6651, 6681 Related products Self service replacement O2 sensor – 325-1 & 325-2 only0 out of 5 $131.00 Add to cart Testo 340 NO Replacement Sensor (0-3000 ppm)0 out of 5 $835.00 Add to cart CO replacement sensor (0-10000 ppm H2 compensated)0 out of 5 $1,122.00 Add to cart