OxyCheq Expedition O2 Analyzer

Features: Easy Operation Compact Durable O-Ring Sealed ABA Case splash proof Built in Flow Restrictor Gas calibration for air or pure oxygen On/Off/On with backlight Easy sensor and battery replacement Fast response long life sensor Temperature Range 0-50c (32-122F) Expected battery life of two years / AAA Batteries Low Battery Warning Resolution 0.1% O2 Measurement Range 0.1-100% O2 Compact carry and storage case Replacement Sensor: O-13 1 year warranty on instrument, 6 months on sensor Approximate Dimensions: L3.5" x W2.5" x H1.6"   Download the manual (PDF) We heard they wanted a durable, compact oxygen analyzer with a user replaceable sensor, readily available batteries, a splash-proof case and and at a reasonable price. The OxyCheq Expedition Oxygen Analyzer meets this criteria and more. We designed an electronic circuit that is easy to calibrate and uses a long life sensor. We used most reliable parts made and enclosed the electronics and sensor in a compact, sturdy, custo