Tru-Cal Device
This item senses current barometric pressure to calculate the value of an intoximeter tank. Without this device, an altitude chard predicts these values. The Tru-Cal is available for .038 and .082 tanks and requires a 9-volt battery.
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Colonial Scientific has teamed up with the industry leaders, Fisher Scientific and VWR, and now offers their entire product line. Colonial Scientific provides any part from the Fisher Scientific site with a part number.
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