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  • ChartFree digital manifold gauge set
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 Rated 4.8 Excellent - Trusted By 17,000+

ChartFree ™

$599.99
$599.99
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check_circle Skip the PT chart on every job

check_circle Switch refrigerants without swapping gauges

check_circle Read clear numbers instead of squinting at needles

check_circle Slip one gauge into your tool bag

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  • Power on and pick your refrigerant from the built-in profiles.
  • Hook up the color-coded hoses, adding the R410A adapters for mini-splits.
  • Read pressure and saturation temperature on the backlit screen.
  • Use data hold to freeze a reading that keeps moving.

  • 1 DMG-2SE digital manifold gauge
  • 3 color-coded hoses, 5 ft (152 cm) each, blue, yellow and red
  • 2 R410A adapters
  • Carry case

Once your item/s is dispatched,
the estimated delivery time is:

- USA: 2-9 business days
- UK: 5-13 business days
- Australia: 5-13 business days
- Canada: 2-12 business days
- Europe: 5-13 business days

You have 90 days to return your product for a full refund (return shipping is covered by the customer; defective items ship a free replacement).

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This product is not available on Amazon or eBay. You are purchasing directly from the only authorized seller — which means full warranty, verified authenticity, and dedicated customer support. Beware of counterfeit listings on third-party marketplaces.

ChartFree digital manifold gauge set

ChartFree

 4.8/5
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  • Over 17,000 recommend ChartFree

Built to take the guesswork out of every reading

calculate

Automatic saturation temps

Skip the laminated chart. It calculates evaporating and condensing saturation temperature from the live pressure reading.

swap_horiz

One gauge for R22, R410A and R32 jobs

Change refrigerant on the gauge, not the gauge in your hand. 88 profiles include R454B, R134a and R1234yf.

ChartFree
backpack

Slip it into your tool bag

Carry less up the ladder with a gauge body of 13.5 x 11 x 7.4 cm (5.3 x 4.3 x 2.9 in) at 680 g (1.5 lb), gauge only.

battery_full

Leave it on between jobs without worry

Auto shut-off saves battery between jobs, with up to 200 hours of battery life claimed.

Frequently Asked Questions

verified +347 experts reviewed it as the best choice in 2026
Q1 Does it come with hoses and R410A adapters?
Yes. The kit has the digital gauge, three 5 ft (152 cm) color-coded hoses in blue, yellow and red, two R410A adapters and a carry case. It isn't a gauge-only unit, so you can get started.
Q2 Does it support R32 and R454B?
Yes. Profiles include R410A, R454B, R32, R134a, R22, R1234yf, R290 and more. Pick yours on the gauge and the saturation temperatures follow from the pressure reading.
Q3 How accurate is it?
It's rated at ±1% of full scale with 1 psi resolution, across -14 to 800 psi (about -0.97 to 55 bar). That gives you clear digital numbers instead of squinting at a needle.
Q4 Is it right for a full-time pro or for DIY work?
It reads pressure and saturation temperature for 88 refrigerants on one backlit screen, with hoses, adapters and a case in the box, so it fits mini-split, home AC, refrigeration and car A/C work.
Q5 Can I change the units to match my manual?
Yes. Switch pressure between psi, kg/cm2, kPa, MPa, bar and inHg, and temperature between °C and °F, so you can match the spec in any service manual without converting by hand.
Q6 How do I read it on the job?
Switch it on, choose your refrigerant and read pressure and saturation temperature on the backlit LCD. If a reading keeps moving, data hold freezes it so you can note it down.
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