What You'll Learn

• Which Sensorcon CO meter models are compatible with measureQuick
• How to pair a Sensorcon meter with measureQuick via Bluetooth
• Where the CO reading appears in the measureQuick app
• CO safety thresholds and the action required at each level
• How the Sensorcon compares to the UEI COA2
• Sensor lifespan, calibration, and battery management

What You'll Need

• Device: iPhone (iOS 15+), iPad, or Android phone/tablet (Android 10+) with measureQuick v3.5.16 or later
• Account: Active measureQuick account
• CO meter: Sensorcon Protector Handheld CO Detector
• Prerequisite knowledge: Bluetooth pairing fundamentals (see Bluetooth Pairing Basics)
• Time: 10 minutes to read; 2-3 minutes for initial pairing

Compatible Sensorcon Models

measureQuick integrates with the Sensorcon Protector handheld CO detector. This is a professional-grade ambient carbon monoxide monitor designed for field use in demanding environments.

The Protector streams real-time CO readings to measureQuick over BLE, providing the same continuous background monitoring and threshold-based alerts as the UEI COA2.

Step-by-Step: Pairing the Sensorcon Protector

Step 1: Power On in Clean Air

Turn on the Sensorcon Protector outdoors or in a known clean-air environment. The sensor needs a clean-air baseline to produce accurate readings. Wait for the startup sequence to complete.

[Visual Reference] The Sensorcon Protector has a small digital display that shows the current CO concentration in ppm. After powering on in clean air and completing the startup sequence, the display reads 0 ppm, confirming a clean-air baseline. The unit is compact and pocket-sized with a power button and a Bluetooth indicator.

Step 2: Scan for the Device in measureQuick

Open the measureQuick app and navigate to the Tools screen. Tap Add or Scan. The Sensorcon Protector appears in the available Bluetooth devices list. Tap it to pair.

measureQuick Toolbox showing Sensorcon Protector in the available devices list

Step 3: Confirm the Connection

Once paired, the Protector appears in your connected tools list with a live CO reading. measureQuick begins continuous background monitoring. Alerts will fire at any time if CO levels cross a threshold, regardless of which screen you are on.

Connected tools list showing Sensorcon Protector with live reading

Where the CO Reading Appears

The Sensorcon Protector feeds ambient CO data into measureQuick the same way the UEI COA2 does:

• Background monitoring: Continuous CO tracking across all screens. When levels rise, measureQuick delivers layered alerts: on-screen warnings, haptic vibration, audible alarms, and Apple Watch notifications (if connected).
• Gas furnace workflow: The ambient CO reading appears in the combustion analysis section. measureQuick uses it in the venting subsystem pass/fail evaluation to determine whether the appliance is releasing CO into the occupied space.
• Cloud logging: When a CO event occurs during a project, measureQuick automatically records the reading, threshold level, and timestamp to measureQuick Cloud. No manual documentation required.

CO Safety Thresholds

measureQuick applies the same threshold-based action guidance regardless of which CO meter is connected. These thresholds align with ANSI/BPI-1200 standards.

Each alert includes specific instructions so technicians know what action to take without needing to recall threshold tables from memory.

Sensorcon Protector vs. UEI COA2

Both meters provide the same functionality inside measureQuick. The differences are in the hardware.

When to choose the Sensorcon Protector: You work in harsh environments where dust, moisture, or rough handling are common. You want a device with a multi-year battery that does not require battery swaps. You need on-device alarm logging for compliance records independent of the app.

When to choose the UEI COA2: You want a lightweight clip-on device for daily carry. You prefer replaceable AAA batteries. You are already using other UEI tools (HUB6, DPM, SPMKIT) and want to stay within one manufacturer's ecosystem.

Inside measureQuick, both meters deliver the same experience: continuous background monitoring, threshold-based alerts, and automatic cloud logging.

Calibration and Sensor Life

Sensor lifespan: Electrochemical CO sensors have a limited operational life, typically 2-3 years depending on exposure conditions. The Sensorcon Protector's sensor degrades gradually over time. When the sensor approaches end-of-life, readings become less accurate and response time slows. Sensorcon recommends periodic bump testing to verify sensor response.

Bump testing: A bump test exposes the sensor to a known concentration of CO gas and confirms it responds. The Protector stores bump test results in its built-in memory. Perform bump tests per the manufacturer's recommended schedule.

Calibration: Full calibration adjusts the sensor's reading to match a certified reference gas. Follow Sensorcon's calibration procedures and intervals. The Protector's on-device memory tracks calibration history.

Sensor replacement: When the sensor reaches end-of-life, contact Sensorcon about replacement options. A CO meter with an expired sensor is not a functioning safety device.

Battery Management

The Sensorcon Protector uses a built-in battery rated for approximately 5 years. There are no batteries to swap or recharge during normal use. This makes it a low-maintenance option for technicians who want a device they can carry daily without thinking about power.

When the battery eventually depletes, the unit will need service or replacement. Unlike the UEI COA2 (which uses replaceable AAA batteries), you cannot field-swap the Protector's battery.

Tips & Common Issues

Readings seem slow to respond

Electrochemical CO sensors take a few seconds to respond to changes in concentration. This is normal. The Protector is not instantaneous. If you walk into a space with elevated CO, the reading will ramp up over several seconds rather than jumping immediately. Do not assume a space is safe based on the first second of readings after entering.

Alerts are not appearing in measureQuick

Check that the Protector is connected in the Toolbox (look for the green status indicator). Confirm that measureQuick has notification permissions enabled in your phone's settings. On iOS, verify notifications, sounds, and haptics are all allowed for the measureQuick app.

Can I use the Sensorcon instead of a combustion analyzer?

No. The Sensorcon Protector measures ambient CO in the room air. A combustion analyzer (Sauermann Si-CA series, for example) measures flue gas composition inside the vent pipe. These are different measurements for different purposes. Use the Protector for personal safety monitoring. Use a combustion analyzer for appliance diagnostics. See Combustion Analysis Fundamentals for details.

Related Articles

Prerequisites (complete these first):

• Bluetooth Pairing Basics

Follow-up articles (next steps after this one):

• UEI COA2 CO Monitor - Alternative ambient CO monitor
• Combustion Analysis Fundamentals - Full combustion testing with a flue gas analyzer
• Bluetooth Troubleshooting

Related in the same domain:

• Smart Tool Overview
• Tool Selection Guide

Related in other domains:

• Combustion Probe Placement
• Gas Furnace Workflow

Need Help?

If you get stuck or this article does not answer your question:

• Check the Related Articles section above
• Contact measureQuick support: support@measurequick.com
• Schedule a training session with our support team