Fieldpiece SM480V Review: 4-Port Digital Manifold
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The Fieldpiece SM480V is a four-port wireless digital manifold with a built-in micron gauge. It is designed around Fieldpiece’s Job Link system, so the same manifold can show pressures, wireless temperature, humidity and vacuum from separate probes on one screen.
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Specs at a glance
Best for: Install and service techs who want vacuum, charging and wireless Job Link probes in one manifold.
- Four ports: one 3/8 in and three 1/4 in
- Maximum 580 PSIG
- 5 in backlit LCD; data logging; tightness test
- Receives readings from Job Link psychrometer (JL3RH), pipe clamp (JL3PC) and SRS3 refrigerant scale
- Refrigerant list includes R-1234yf, R-1234ze(E), R-32, R-454A, R-454B, R-454C and R-516A; A2L compatible
Why it stands out
- Four ports and a micron gauge in the same tool
- Pairs with Fieldpiece Job Link probes and scale
- A2L compatible
Keep in mind
- Hoses are not included
- Confirm warranty terms before buying
- Fieldpiece lists a maximum of 580 PSIG, lower than the Testo's 870 psi
Best for: Techs using Fieldpiece Job Link or SM-series manifolds who want wireless supply and return air, wet bulb and dew point.
- RH 0 to 100%; +/-2.5% RH from 10 to 90%, +/-5% outside that
- Temperature -40 to 250 F; +/-1 F from 32 to 113 F
- Reads wet bulb and dew point
- Wireless 2.4 GHz, 1000 ft line of sight; Job Link app and SM380V/SM480V manifolds
- 2 x AAA, about 150 h; auto off 2 h (can disable)
Why it stands out
- Flexible probe with sliding magnet for placing in ducts
- Feeds superheat target and airflow calcs in the app
- Long wireless range
Keep in mind
- Sold one at a time; you need two for supply and return
- 60 s typical RH response time
- Only a 1-year warranty
What Fieldpiece says it does
- Four ports. One 3/8 in and three 1/4 in.
- Pressure. Maximum 580 PSIG.
- Display. 5 in backlit LCD, with data logging and a tightness test.
- Wireless readings. Receives data from the Job Link psychrometer (JL3RH), pipe clamp (JL3PC) and the SRS3 refrigerant scale.
- Refrigerants. The list includes R-1234yf, R-1234ze(E), R-32, R-454A, R-454B, R-454C and R-516A. Fieldpiece lists it as A2L compatible.
- Power. Six AA batteries are included. Hoses are not.
Where it falls short
- Hoses not included. Budget for a set.
- 580 PSIG maximum. The Testo manifolds list 870 psi.
- Warranty. Confirm the terms with the seller before you buy.
Who should buy it
Install and service techs who want to build a wireless kit around Fieldpiece. Pairing it with the JL3RH psychrometer and a vacuum pump covers evacuation, charging and airflow checks. Compare it with the Testo 557s before you commit to an ecosystem.
Alternatives
- Yellow Jacket P51-870 TITAN: touchscreen, vacuum sensor and two clamps included, two year warranty.
- Testo 550s: a 2-valve design with 870 psi range and two-year warranty.
What else you need to buy
The SM480V arrives without hoses, so plan on a set sized for the refrigerants you service. If you want temperature readings, add Job Link clamps or a psychrometer, since the manifold receives temperature readings from them rather than carrying its own probes. A vacuum pump completes the evacuation setup. Because the manifold has six AA cells, keep a spare set in the bag. These are real costs on top of the manifold price, so total the setup before comparing it with a kit that includes hoses or clamps.
Frequently asked questions
Does the SM480V have a built-in micron gauge?
Yes. Fieldpiece lists it as a 4-port wireless digital manifold with a micron gauge.
Does it support R-32 and R-454B?
Fieldpiece lists both among the refrigerants stored and calls the manifold A2L compatible.
Are hoses included?
No. Hoses are sold separately.
What batteries does it use?
Six AA batteries, which are included.
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Sources
Specifications and product details were checked against these sources:
