***CO2Meter's offices will be closed starting at 5:00pm edt. Thursday, July 2 and will reopen Monday, July 6 at 8:30 am edt. in observance of the US Independence Day holiday. Orders placed after 1:00 pm et. Thursday, July 2 may experience delays in shipping due to the closure.**

Personal O2 Safety Monitor

Personal O2 Safety Monitor
Regular price $399.00

POs or wholesale quantity discounts click here

The SAN-20 Personal O2 Safety Monitor is designed for employees who work in enclosed areas where oxygen depletion may cause personal harm.

This personal safety monitor features a man down alarm that is triggered when an employee fall occurs. It also includes a high impact strobe, powerful alarm and vigorous vibration.

    • Audible, visual strobe and vibrating alarms
    • Man down alarm - leverages accelerometer technology 
    • Rugged design with protective rubber enclosure
    • Heavy duty metal clip
    • Rechargeable Li-Ion battery – 12+ hours per charge
    • Large LCD display: O2, temperature, %RH
    • Calibrate using ambient air
    • No over-exposure or negative memory effects
    • IP54 housing protects against dust and rain
    • Programmable alarm settings


Oxygen Sensor
  • Measurement Range: 0 to 25.0% vol.
  • Resolution: 0.1% vol.
  • Sensing Method: Fluorescence quenching by oxygen
  • Temperature Range: 14-140°F (-10.0-60.0°C) display
  • Humidity Range: 0 to 99% RH
  • Response Time: <15 seconds
  • Expected Lifespan: > 2 years
    Temperature Sensor
    • Display Resolution: 0.1°F (0.1°C)
    • Display Options: °F/°C (switchable)
    • Accuracy: +0.9°C(+0.5°F)
    • Response Time: 5~30 seconds (device must equilibrate with environment)
      Humidity Sensor
      • Measurement Range: 0.0 to 99.9% RH
      • Display Resolution: 1%RH
      • Accuracy: +4.5%RH
      • Response Time: < 8 seconds for 63% of step change
        • Operating: 32°F to 122°F (0°C to 50°C), <95% RH non-condensing
        • Storage: 14°F to 140°F (-10°C to 60°C), < 99% RH non-condensing
        • Power Supply: Li-ion battery (4.2V, 1500mAh), 
        • Dimensions: 3.9 x 2.0 x 1.7 in. (98x50x42mm)
        • Weight: 4.76oz. (135 grams)


        • Micro USB Power Cable w. Wall USB Charger
        • Durable Industrial Clip
        • User Manual


        • 1 year - See CO2Meter Terms and Conditions.

        Customer Reviews

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        "Easy to install, easy to set up, and easy calibration - just what I was looking for."

        - Phillip Farrar
        Water Plant Superintendent

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