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5.5” U-Tube Manometer

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$9.75
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The 5.5″ U-Tube Radon System Manometer includes tubing, a sticker label kit and a Homeowner’s Guide, and measures maximum WC:5.5.
Diagnostic Kit (Complete HVAC Testing Tool Set)

Diagnostic Kit

$275.00
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Diagnostic Kit includes OBAR Handheld Manometer, Pitot tube, adapters, flow chart, drill/tap set, NPT plugs, tubing, slab probe, and storage bag. Designed for HVAC professionals, it ensures accurate airflow, pressure testing, and system diagnostics for reliable residential and commercial performance every time.

OBAR Battery System Alarm

$58.00
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08 – 1.2″ w.c. pressure sensor. Built-in audible and visual alarm. Field adjustable alarm set-point. 4 options for actuation delay and 4 options for silence duration. Includes 2XAAA batteries, system label and length of vacuum tube.

OBar Digital Manometer and Battery System Alarm

$75.00
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0-4″ Digital Differential Pressure Gauge Built-in audible and visual alarm with push to silence feature. Fully programmable for alarm set-point, delay (display and alarm), units and more. Pipe or wall mountable. Includes mounting bracket/hardware, batteries, system label, 2′ of vacuum tube. Requires 4 x AA batteries (included)
OBAR GBR25 Handheld Manometer

OBAR Handheld Manometer

$175.00
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The OBAR GBR25 Handheld Manometer offers accurate digital pressure measurement for HVAC and radon applications. Its portable design makes it easy to carry and operate in the field. Built for professionals, it provides quick readings, improves system testing accuracy, and supports effective troubleshooting for better airflow and ventilation performance.
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OBAR Plug-in System Alarm

$57.00
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0.8 – 1.2″ w.c. pressure sensor. Built-in audible and visual alarm. Field adjustable alarm set-point. Includes power adapter, system label and 2′ of vacuum tube.

SPECIAL ORDER ONLY (special order products may have longer transit times than stock items)