Description
Critikon OxyChek 2000 Oxygen Monitor 9 VDC Benchtop % O2 Analyzer No Power Cord
The Critikon OxyChek 2000 is a benchtop percent oxygen monitor designed to measure oxygen concentration in gas mixtures. Manufactured by Critikon, a division of McNeilab Inc. of Irvine, California, it provides a continuous readout of % O2 using an electrochemical sensor cell. The unit is powered by 9 VDC and features front-panel level and limit dials, a calibration knob, battery life indicator, and a power switch.
Specifications & What's Included
- Brand: Critikon (Division of McNeilab Inc.)
- Model No.: 2000
- Product Name: OxyChek Oxygen Monitor
- Power: 9 VDC
- Measurement: Percent oxygen (% O2) concentration
- Form Factor: Benchtop / portable tabletop enclosure
- Front panel: % O2 digital/analog display, LEVEL dial, LIMIT dial, CAL (calibration) knob, BATT LIFE indicator, POWER ON switch
- Rear: Sensor cartridge plug port, ventilation speaker grille, rating plate label
- Required replacement cartridge: Moisture Insensitive Replacement Cartridge No. 220-041 (not guaranteed included)
- No power cord included
Applications
The OxyChek 2000 was designed for clinical and respiratory therapy environments where continuous monitoring of oxygen concentration is required. This type of instrument was commonly used in hospitals, respiratory therapy departments, and medical gas supply verification — confirming that oxygen delivered to patients or medical equipment met required concentration levels. The Critikon OxyChek line dates from the late 1970s and early 1980s, an era when McNeilab developed portable, easy-to-calibrate oxygen analyzers for bedside and clinical-support use. These instruments remain sought after for niche respiratory, veterinary, and laboratory oxygen-monitoring applications where a straightforward electrochemical % O2 readout is needed. The moisture-insensitive cartridge design was a key feature for medical gas environments where humidity could affect sensor accuracy.
This Critikon OxyChek 2000 Oxygen Monitor has been inspected and appears to be in good condition. The green enclosure shows normal surface wear consistent with prior use — light scuffing on the top and sides — but the front panel controls, dials, and display appear intact. The rear rating plate label is clean and fully legible. Note that no power cord is included; the unit requires a 9 VDC power source. The sensor cartridge (replacement cartridge No. 220-041) is not guaranteed to be present or serviceable and should be verified upon receipt. Please view our photo set and contact us if you have any questions.
Thanks for your interest. Recycled Goods Inc., Ventura, CA.
FDA Regulation and Certification: The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not purchase this item unless you are an authorized purchaser. If the item is subject to FDA regulation, we will verify your status as an authorized purchaser of this item before shipping.
Upon receipt, it is the BUYER'S responsibility to have this instrument checked and certified for use by a qualified Technician prior to placing it into use or service.
Warranty Information
Additional Information
Brand: |
Critikon |
Model: |
2000 |
MPN: |
2000 |
Type: |
Oxygen Monitor / O2 Analyzer |
SKU: |
26285 |
Seller Notes: |
No power cord included. Replacement cartridge No. 220-041 required. |
Country/Region of Manufacture: |
United States |
Form Factor: |
Benchtop |
Power Requirements: |
9 VDC |
Measurement Type: |
Percent Oxygen (% O2) Concentration |
Division / Parent Company: |
McNeilab Inc. |
Sensor / Cartridge: |
Moisture Insensitive Replacement Cartridge No. 220-041 |
Display Type: |
Analog dial / digital readout |
Application: |
Medical / Respiratory / Clinical Oxygen Monitoring |
Condition: |
Used – Inspected and in Good Condition |
Condition Notes: |
Critikon OxyChek 2000 Oxygen Monitor inspected and in good condition. Normal surface wear on enclosure. Front panel controls and dials appear intact. No power cord included. 9 VDC required. Sensor cartridge not guaranteed. |
