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Testo 317-3 Ambient CO Meter

by Testo

Last updated Mar 29, 2026 · 2 revisions

Highly sensitive ambient CO detector with adjustable alarms and up to 1,999 ppm measurement range for HVAC gas leak detection and safety.

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www.testo.com
Testo 317-3 Ambient CO Meter - website image

About This Product

The Testo 317-3 is a portable ambient CO meter with an extremely sensitive electrochemical sensor measuring carbon monoxide up to 1,999 ppm. It features adjustable audible and visual alarm thresholds for customized safety monitoring around gas appliances and heating systems. The compact design with belt clip makes it ideal for HVAC technicians performing walk-around CO safety checks in mechanical rooms, boiler plants, and residential basements.

Capabilities

How this product is delivered and what's included out of the box.

Mobile app
Not available
Free trial
No
Free tier
No
Public API
No
Deployment
On Premise

FSH Score Breakdown

Ease of Use
7.0
Features
5.0
Support
5.0
Value
5.5
Integrations
3.0
AI Capabilities
1.5

Customer Reviews

Features

16 features confirmed across 5categories· Showing confirmed capabilities only

Hardware Features10features

Touchscreen DisplayBacklit displayAdjustable Alarm Setpoints and LatchingCO Sensor Self TestCustomizable Display and AlarmsDual Backlit DisplayEarphone JackEarphone Jack for Loud EnvironmentsHigh and Low Vacuum Alarms
Show 2 more
Sensor LongevitySelf-test mode without test gasQuick-Change Probes

Equipment & Asset Management3features

AlertsAdjustable alarm thresholdSelf-Diagnostic ModeSelf-test modeLong-Term Environmental Measurement

Reporting & Analytics1feature

Audit Report Generation

Mobile & Field Tools1feature

Bluetooth Probe Integration

Compliance & Safety1feature

Airflow Calculations

Integrations 3 across 1 category

Industry-Specific 3
Fluke Connect
HOBOConnect
Testo Native

Pricing

Model
Custom
Starting at
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