Testo 317-2 https://fat-egypt.com/wp-content/uploads/2014/04/testo-317-2-1.jpg 220 270 Future Advanced Technology Future Advanced Technology https://fat-egypt.com/wp-content/uploads/2014/04/testo-317-2-1.jpg April 9, 2014 March 24, 2023 Testo 317-2 Highly practical gas leak detector for fast checks on gas pipe connections, with visual bar display. Sensor self-test after switching on Rising alarm tone with increasing gas concentration Meas.range : 0 to 20.000 ppm CH4 For more information