AlcoMate Prestige Breathalyzer Sensor Module Color:Green Board (circuit board color MUST match existing color) then you CANNOT use pre-calibrated

then you CANNOT use pre-calibrated replaceable sensor modules

There is no negative effect on testing if the same mouthpiece is used continuously

3-Digit LCD Results Display

The AL2500 Elite is a convenient

AlcoMate Prestige Breathalyzer Sensor Module Color:Green Board (circuit board color MUST match existing color) then you CANNOT use pre-calibratedPre Calibrated Replacement Sensor Module for the AlcoMate Prestige ONLY. Before adding this item to your cart, you MUST select either GREEN or RED in the dropdown box above. You can also verify the color by removing the top of your Prestige and verifying the color of your circuit board manually. You can only replace with the exact same color. If the words "AlcoMate Prestige" are NOT printed directly on your device, then you CANNOT use pre calibrated