Description
Ventronics 5528 Digital Oxygen Monitor Galvanic Sensor Model 5510 For Parts
The Ventronics Model 5528 is a portable benchtop digital oxygen monitor designed to measure and display ambient percent oxygen levels. It uses a galvanic electrochemical sensor (the Model 5510, sold separately) and features adjustable low and high audio alarm thresholds set via front-panel thumbwheel switches. The unit is battery-powered and includes a calibration knob for zeroing the display to 100% oxygen reference. This example is being sold as-is for parts or repair — no sensor is included and the unit has not been tested.
Specifications & What's Included
- Brand: Ventronics, Division of Hudson — Temecula, CA
- Model: 5528
- Type: Digital Oxygen Monitor (Galvanic Sensor)
- Display: Digital LCD — reads Percent Oxygen (%O2)
- Alarm: Adjustable Low and High alarm thresholds via front thumbwheel switches
- Alarm Output: Audible alarm with Audio Alarm Silence button on top panel
- Alarm Indicator: Red alarm indicator light on top panel
- Calibration: Front-panel calibrate knob
- Power: Battery-operated (battery compartment on rear panel — batteries likely depleted)
- Power Switch: ON/OFF toggle switch on top panel
- Sensor Connector: Multi-pin gold-contact edge connector on rear (Galvanic Sensor Only)
- Compatible Sensor: Model 5510 Galvanic Sensor (NOT included — must be sourced separately)
- Form Factor: Portable benchtop with carry handle
- Updated Model note (printed on unit): Preset Low Alarm at 18% O2
- Enclosure: Blue steel case with carry handle
- What's Included: Monitor unit only — no sensor, no accessories
Applications
The Ventronics 5528 is a galvanic-cell oxygen monitor built for environments where oxygen depletion or enrichment poses a safety risk. Monitors of this type were used in medical facilities, laboratories, industrial gas handling areas, and confined-space entry applications to continuously track ambient oxygen concentration and trigger alarms when levels fall below or rise above safe thresholds. The Model 5528 was produced by Ventronics, a division of Hudson Oxygen Therapy Sales Company, a manufacturer with deep roots in respiratory and medical gas equipment. Galvanic-type oxygen sensors generate a small electrical current proportional to the partial pressure of oxygen, which the monitor's circuitry converts to a percent-oxygen reading on the digital display. This class of instrument saw wide use from the 1970s through the 1990s in hospital respiratory therapy departments, hyperbaric facilities, and industrial compressed-gas environments. Replacement galvanic sensors (Model 5510) are the consumable element of the system and are required for operation.
This Ventronics 5528 Digital Oxygen Monitor is being sold as-is for parts or repair. We are unable to test oxygen monitors of this type, so no functionality can be confirmed. The required Model 5510 galvanic sensor is not included. Internal batteries are likely depleted and will need replacement before any testing or use. The unit appears cosmetically intact based on our photos — the blue enclosure shows light surface wear consistent with age, and all visible controls, thumbwheels, and the sensor connector appear present and undamaged. 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: |
Ventronics |
Model: |
5528 |
MPN: |
5528 |
Type: |
Digital Oxygen Monitor |
SKU: |
21561 |
Condition: |
As-Is / For Parts or Not Working |
Seller Notes: |
No sensor included. Requires Model 5510 galvanic sensor. Sold as-is. |
Country/Region of Manufacture: |
United States |
Form Factor: |
Benchtop / Portable |
Sensor Type: |
Galvanic (Model 5510 sensor required, not included) |
Measurement Type: |
Percent Oxygen (%O2) |
Alarm Type: |
Audio alarm with Low and High thumbwheel alarm settings |
Display Type: |
Digital LCD — Percent Oxygen readout |
Connector Type: |
Multi-pin edge/card connector (sensor port) |
Power Source: |
Battery (battery compartment visible on rear) |
Compatible Sensor: |
Ventronics Model 5510 Galvanic Sensor |
Controls: |
Calibrate knob, Audio Alarm Silence, ON/OFF toggle, Low/High alarm thumbwheels |
Manufacturer Division: |
Ventronics, Division of Hudson, Temecula, CA |
Application: |
Oxygen level monitoring with alarm, medical/industrial environments |
Condition Notes: |
Ventronics 5528 Digital Oxygen Monitor sold as-is for parts or repair. Cannot be tested; no sensor included (requires Model 5510). Internal batteries likely depleted. Cosmetically intact with light wear. Please contact us with questions. |
