DiversiTech Adds Respiro’s CO/PRO Shutoff Switch to Safety Lineup

What to do about it

This week, order a demo unit or one CO/PRO switch and have your techs install and evaluate it on a fuel-burning furnace to train them on wiring and trip behavior.

A question for you

Do you want me to draft a single-step installer checklist your crew can use when fitting a CO/PRO switch?

What changed and why it matters

DiversiTech has added the CO/PRO carbon monoxide shutoff switch from Respiro USA to its indoor-air-quality and safety product lines and will distribute it across North America through professional channels. The CO/PRO is specified for fuel-burning furnaces and water heaters and relies on two independent sensors: one monitoring CO in the HVAC supply duct and another monitoring the air around the appliance and venting system. If the device detects elevated carbon monoxide, it automatically interrupts power to the connected equipment to stop further production of the gas. DiversiTech positions CO/PRO as a complement to existing CO alarms and detection systems.

Why this is relevant for HVAC, plumbing and appliance businesses

• New safety product to offer customers. CO/PRO is a device that actively halts combustion equipment when unsafe CO levels are present, which is a different function than passive CO alarms. Offering it gives you a visible, preventative safety upgrade to sell or include in higher-risk service calls.
• Installer-focused distribution. DiversiTech’s agreement makes the device available through professional distribution channels, meaning contractors and HVACR distributors should be able to source units through their normal suppliers rather than consumer retail channels.
• Training and liability considerations. Because CO/PRO actively interrupts equipment power, your techs need to understand wiring, reset procedures and how to explain the device and its implications to homeowners, including that it is complementary to — not a replacement for — CO alarms.

How this fits into service workflows

CO/PRO is intended to detect elevated CO in the supply duct and around the appliance/venting, then immediately cut power to stop additional CO production. That behavior can change how you handle call-backs: if a unit has tripped the shutoff, the immediate repair sequence focuses on diagnosing and correcting combustion- or venting-related faults rather than only replacing sensors or reporting alarms. You will also need to document the shutoff and any repairs thoroughly for the homeowner and for your records.

Practical steps to take this week

1. Order one CO/PRO unit through your usual DiversiTech distributor (or inquire about availability) and have a designated tech install it on a furnace or water heater matched to the product’s application so your crew can learn its behavior firsthand.
2. Develop a short installer checklist: correct placement, wiring to interrupt equipment power, reset procedure, test sequence, homeowner explanation, and what to record in the job notes if the device has tripped.
3. Train customer-facing staff on the distinction between CO alarms and a CO shutoff switch so sales and dispatchers can accurately set customer expectations when offering the product during service visits.

Communicating the value to customers

Position CO/PRO as an added layer of protection that actively stops further CO generation when elevated levels are found at the appliance or in the supply duct. Emphasize that it works alongside a home’s CO alarms rather than replacing them, and be prepared to explain the trip-and-reset process. For homeowners with older venting, intermittent flame-rollout symptoms, or who use fuel-burning appliances in confined spaces, an active shutoff can be a compelling upgrade to routine maintenance or safety inspections.

Uncertainties and what to confirm

The source confirms the two-sensor design, targeted appliances, and automatic power interruption. It does not provide technical installation details, reset procedures, certification listings, pricing, or timelines for distributor stocking. Confirm wiring diagrams, applicable listings or approvals, compatibility with specific appliance control systems, and local code acceptability with DiversiTech or Respiro before broad market roll-out.