Product Description

ST-NA*3 handheld nitrogen analyser

* Simple to operate-one operation

* Auto power-off function

* Replaceable battery and sensor

* The Nitrogen Analyser gives you the actual nitrogen percentage in your tyres

ST-NA*3 Technical Data Summary

Measurement Range:                         ****0 % Nitrogen
Display Resolution:                             0.1 vol %

Measurement Cycle:                           0.5 secs

Response Time *0%:                         less than 2 seconds

Auto Off Time Delay:                           5 mins

Accuracy:                                             +/- 0.5 vol% from 0 to *0 vol%
+/- 2 vol% from ****9 vol%

Operating Temperature:                     0℃/*2°F to *0℃/**2°F

Sensor Life:                                          *4 months

BatteryType:                                          9v 6LR*1 Alkaline

Compressed air is your tire’s worst enemy. Air is about *8% nitrogen, *1% oxygen, and 1% other. Nitrogen is inert, non combustible and non corrosive. Oxygen, on the other hand, is immensely destructive to rubber and other tire materials. As soon as a tire is manufactured and exposed to air, the effects of “oxidation” begin to deteriorate the rubber. Over time it loses its elasticity and strength, just like an old rubber band you’ve probably found around your home. This same process occurs in tires inflated with air as the oxygen attacks the rubber molecules, working from the inside out, until the oxygen, and its destructive properties, permeates the tire structure and ultimately the tread.