Expedition PPO2 Analyzer PSR-11-39-JD It is a large pocket

It is a large pocket and has a dring on the outside to clip off a spool or reel

used with proprietary electrolyte formulation

North Korea

Operating Temp: 32 degrees F to 120 Degrees F (0C to 50C)

Its unique electrolyte formulation ensures full utilization of Pb anode - result is longer sensor life without signal drift

Expedition PPO2 Analyzer PSR-11-39-JD It is a large pocketFeatures: Easy Operation, Compact, Durable, O Ring Sealed, ABS 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. 01% O2, Measurement Range 0. 01 1. 0 O2, Compact carry and storage case, Replacement