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Fieldpiece JL3KM2 Job Link Dual Manometer Kit


80 in stock

FREE delivery over $99

Easy 30 day return (Domestic)

Easy International shipping

Need Help? Speak with our HVAC and tools experts. Call or text (786) 239-7444.


Hoses don’t tether the Fieldpiece JL3KM2 Job Link Dual Manometer Kit, so HVACR technicians get precise diagnostics from optimal locations every time.

Short hose length keeps things neat, & independent sensors mean direct port placement. Measure between zones easily. Dial in the gas pressure of furnaces. Optimize the total external static pressure of the equipment. Pinpoint duct leaks & restrictions to do more.

The untethered design of the Fieldpiece wireless manometer lets you place each probe independently to see up to 8 pressure readings at once — all fed directly into the Fieldpiece Job Link app.

Mount magnetically to equipment for hands-free use in tight spaces. The probes hold tight even when the hose is tugged or the equipment shakes. Slide the switch & the app knows which side of the system you’re going to place your probe.

Measure & view the real-time return, supply, & total external static pressure all at once from up to 1000′ away. Get single, dual, or multi-port measurements with the freedom to work the way you like, from anywhere with the Fieldpiece JL3KM2 Job Link Dual Manometer Kit.

The Fieldpiece JL3KM2 is an accurate and versatile dual port manometer probe kit that includes two manometer probes that work independently and are not constrained by any hoses to measure return static, supply static, and total external static pressure all at once. In addition, these probes can also be used to measure a furnace’s draft and gas pressure. These measurements can be viewed in the Fieldpiece Job Link App on a smart device from 1000’ away.

The revolutionary JL3KM2 has been recognized for excellence in product design. In 2021, it won the Silver Award in The ACHR News Dealer Design Contest in the ‘Testing and Monitoring Products’ Category.

  • Fieldpiece JL3KM2 Dual Port Manometer Probe Kit
  • Reliable pressure regardless of location
  • Long range wireless, up to 1000'
  • All-in-one static, gas and draft pressure
  • Accurate and stable measurements
  • Individual pressure readouts give you P1, P2, and pressure differential in real-time
  • Find Inlet and Outlet gas pressures
  • Precise placement with untethered design
  • Switchable P1 – P2 indicator
  • Job Link® System app compatible
  • Record up to 8 readings at once* in Job Link App
  • Easy zero to atmosphere
  • Measure real-time pressure drops
  • 350' long-range wireless
  • Rugged metal tips
  • Measure between zones without snaking a hose under the door
  • Strong rotating magnet
  • Untethered usage
  • All accessories for static and gas applications included
  • Document system health in Job Link App reporting
Fieldpiece JL3KM2 Dual Port Manometer Probe Kit
Minimum Device Requirement : BLE 4.0 devices running iOS® 7.0 or Android™ 5.0 (Latest compatibility at
Compatible Media : Dry, non-corrosive gas
Pressure Port : Tube connector for flexible tubing (4.5 to 8mm ID)
Units of Measure : inWC, mmWC, mbar, psi, Pa
Accuracy and Ranges :
  • inWC: ±0.02 on 0.00 to ±2.00 (±1.5% FS on 2.00 to ±60.00);
  • mmWC: ±0.5 on 0.0 to ±51.0 (±1.5% FS on 51.0 to ±1500.0);
  • mbar: ±0.05 on 0.00 to ±5.00 (±1.5% FS on 5.00 to ±150.00);
  • psi: ±0.001 on 0.000 to ±0.072 (±1.5% FS on 0.072 to ±2.165);
  • Pa: ±5 on 0 to 498 (±1.5% FS on 498 to ±14930)
Maximum Overload Pressure : 321.08 inWC (11.6 psi; 80.0 kPa)
Battery Type : 2 x AAA, NEDA 24A, IEC LR03
Battery Life : 150 hours typical alkaline. LED slow-blinks red when battery replacement is needed.
Auto Power Off : 2 hours (APO can be disabled)
Wireless Range : 1000 feet (305 meters) line of sight. Obstructions affect distance.
Radio Frequency : 2.4 GHz
Operating Environment : -10°F to 122°F (-23°C to 50°C) at <75% RH
Storage Temperature : -10°F to 140°F (-23°C to 60°C) at <80% RH (with batteries removed)
Temperature Coefficient : 0.1 x (specified accuracy) per 1.8°F (-10°F to 64°F, 82°F to 122°F), per 1°C (-23°C to 18°C, 28°C to 50°C)
Weight : 0.30 lbs (137 g)
Wireless Frequency : 2.4 GHz
Battery : 2 AAA (included)
Certifications : CE EN 300 328
Does this fieldpiece dual port manometer work as a stand alone equipment or is it an add on?

You just need the Fieldpiece job link app to use these.

Is the maximum range 350' or 1000'?

The range is 1000' line of sight. Obstructions affect distance.

What is the warranty on the JL3KM2 Dual Port Manometer?

1 Year Limited Warranty for all probes. Fieldpiece specifically states, “In the USA, your Fieldpiece meters, standalone instruments, accessory heads, and pocket tools are warranted against defects in material or workmanship for one year from date of purchase. Fieldpiece will replace or repair the defective unit, at its option, subject to verification of the defect. This warranty does not apply to defects resulting from abuse, neglect, accident, unauthorized repair, alteration, or unreasonable use of the instrument.

  • (1) Fieldpiece JL3KM2 Job Link Dual Port Manometer Probe Kit includes:
  • (2) Manometer Probes - JL3MN
  • (2) Static Pressure Probe and Hose - ASP2
  • (2) Brass Screw Fitting with Extra Hose
  • (2) Slide Gas Adapter
  • (4) AAA Batteries
  • (1) Padded Case

Customer Reviews

Based on 2 reviews
John Rigor
Works Great

Very accurate, fast and has a long range.

Jacqueline Gonzalez
Essential diagnostic tool

Compared with other manometers and this one is very accurate. Works great with the app.

Fieldpiece JL3KM2 Job Link System Dual Port Manometer
Fieldpiece JL3KM2 Job Link Dual Manometer Kit