The GasCheck Tesla is a highly senstive helium leak detector designed for effective use within high magnetic fileds found around the oustside of MRI scanners. The advanced micro thermal conductivity sensor of the instrument helps provide rapid and accurate measurement of helium leaks down to ultra-low levels. The instruments LCD dipslay, LED indicator and audible sounder clearly indicate when a helium leak is present. The GasCheck Tesla Helium Leak Detector automatically zeros to the ambient air aorudn it when its switched on and is immediaetly ready to detect.