# EHDIS Dual-Port Digital Manometer, ±2.999psi

EHDIS’s digital manometer is a handheld dual-port pressure meter for single-pipe air pressure or differential measurements across two pipes. Its selectable range and units suit HVAC and gas-system service work, but customer feedback raises mixed concerns about accuracy and display readability.

- [Original product page](https://best-deals.pro/product/ehdis-dual-port-digital-manometer)
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- Market: US
- Language: en-US
- Currency: USD
- Brand: EHDIS
- Price: 38.69 USD
- Previous price: 42.99 USD
- Discount: 10%
- Price checked: 2026-11-13T05:39:28.239Z
- Rating: 4.4 / 5
- Reviews: 1438

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Measures single-pipe air pressure or differential pressure between two pipes, according to the listing.
- Offers 12 selectable pressure units, along with hold, stored-data and max/min functions.
- The listed operating temperature range is 0 to 50°C \(32 to 122°F\).

## Pros

- Dual inputs support differential checks, while the stated single-pipe mode covers basic pressure measurements.
- A broad selection of 12 pressure units can accommodate different reporting preferences.
- The listing describes hold, saved readings and max/min recording for capturing measurements.

## Cons

- Three AAA batteries are required and are not included.
- The listed accuracy is specified at 25°C, so it should not be treated as an unconditional accuracy claim across all operating conditions.

## Specifications

### Identity
- Brand: EHDIS
### Measurement
- Selectable pressure range: ±2.999psi
- Accuracy: ±0.3%FSO \(at 25°C\)
- Repeatability: ±0.2% \(Max ±0.5%FSO\)
- Linearity/Hysteresis: ±0.29%FSO
- Response time: 0.5 Seconds
- Selectable measurement units: 12 Selectable Units of Measure \(kPa, Psi, Kgfcm2, Ozin2, Bar, mbar, inHg, mmHg, InH2O, FtH2O, cmH2O, Pa\)
### Functions
- Measurement modes: single pipe or differential pressure of two pipes
- Data functions: Data Hold and Error Code
- Maximum and minimum recording: Max / minimum record function
- Stored data: 100 data
- Over-range indicator: Err 0
- Under-range indicator: Err 1
### Power and operating conditions
- Battery: 4.5V\(3\*1.5V/AAA\) NOT included batteries
- Operating conditions: 0 to 50°C \(32 to 122°F\)
- Storage conditions: -10 to 60°C \(14 to 140°F\)
### Dimensions and installation
- Dimensions listed: 5.31 x 1.18 x 2.17 inches
### Materials and protection
- Material listed: Rubber

## Before you buy

- The listing gives an accuracy claim of ±0.3%FSO at 25°C, while customer feedback is mixed on accuracy and pressure readings. Treat the listed figure as a manufacturer claim and consider whether it meets the requirements of the specific service task. Customers also report mixed views of the unit size and readability, and some find the instructions lacking. The listing does not give a display size.

## A good fit for

- HVAC technicians or maintenance users checking single-line air pressure or differential pressure across two lines.
- Gas-system service tasks where the stated measurement range, selectable units and supplied fittings are suitable.

## Less suited to

- Users who need batteries included or require confirmed measurement performance beyond the stated range and test conditions.
- Users who need a clearly established display size or confidence in accuracy based only on customer feedback.

## Customer feedback

Customer feedback highlights ease of use, functionality and versatility, with some customers saying it works well. Feedback is mixed on accuracy, pressure readings, size and readability, and customers also report that the instructions can be lacking. For HVAC or gas-service checks, those concerns matter when readings need to be trusted or the display must be read quickly. The listing provides a stated accuracy figure at 25°C, but customer impressions do not verify that specification or establish suitability for a particular task.
- Positive themes: Customers describe it as easy to use and report that it works well.
- Positive themes: Customers appreciate its versatility across different testing settings.
- Negative themes: Customers report that the instructions are lacking.
- Mixed feedback: Customer feedback is mixed on accuracy and pressure readings.
- Mixed feedback: Customers disagree about whether the meter is a practical size, and some report difficulty reading the units without magnification.

## Frequently asked questions

### Can this manometer measure differential pressure?
The listing says its dual inputs measure differential pressure between two pipes, as well as pressure at a single pipe.
### What pressure range and accuracy does the listing specify?
It lists a selectable pressure range of ±2.999psi and accuracy of ±0.3%FSO at 25°C. These are manufacturer claims, and customer feedback is mixed on accuracy and pressure readings.
### Are batteries included?
No. The listing specifies three 1.5V AAA batteries and says they are not included.
### What comes in the package?
The package list names the manometer, an English user manual, a protector bag, a metal connector and two rubber tubes.

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## Images

![EHDIS Dual-Port Digital Manometer, ±2.999psi — 1](https://best-deals.pro/i/TKRxMI9VHaXtfO3SsGkm178qesxGKdCfM_Q45YhT5RT5Kiq_LCPERqHyRL2dB80iu62AXCjI-fosOrGQgDePtuZEbso_Z-_4rL-2_qZCNpfw2iOgyWqf.jpg)

![EHDIS Dual-Port Digital Manometer, ±2.999psi — 2](https://best-deals.pro/i/gaimumPGedTr1Yqlz3wL8GKNVWTuSviB87uH-RDCY3TtHEn9FdtQ5yknnDc9jQrpE0eEXGatq52mLlSYbMWU_M2hX4JDp5Ar9h2W6NFPkHNXpIupo4sF.jpg)

![EHDIS Dual-Port Digital Manometer, ±2.999psi — 3](https://best-deals.pro/i/MaLHZCZ2O1uV1HSKug_kRXIaC0c1Vf57vAOA5TbNo3kHYwTu3dWk9PzzKzAuDU6f4VFqmUuEbqO9vGudrAbitYW818Mx8TeJ4UWRv7-gMsVLgf8b7CAF.jpg)

![EHDIS Dual-Port Digital Manometer, ±2.999psi — 4](https://best-deals.pro/i/OZielZ4BnRgijUoLZtmbv-fCy1TlK3p-7QPXadQ0upDhHym2JIAZtgVVmxsVlBkl_Mndi8imQQ3IvzqbYiju1DH88GRFBs6QCBcJG3DvOqTnp2h6SD6N.jpg)

![EHDIS Dual-Port Digital Manometer, ±2.999psi — 5](https://best-deals.pro/i/FNm3GivaahAdUm6Ge-4KxszVY86QOra7RxAUWZQHG1vZaLL1bR88AyYEb6B-UDwJTQt2EQjSlXC05y0Eg2s4LYfy4OpDTUxZbr9UFjDvYPe3lxVGs-0G.jpg)

![EHDIS Dual-Port Digital Manometer, ±2.999psi — 6](https://best-deals.pro/i/K19QEMsuMEZSEuMJftabjTetBQ2GtYLGqEF8L3lO6Q2PuYcLxvLH8erSePcyKVzTcuGAM_GIgxoluDoYupgZFk9jXRGc9BC6XtGikUKm0-y77tUA9Aqm.jpg)

![EHDIS Dual-Port Digital Manometer, ±2.999psi — 7](https://best-deals.pro/i/7rKxwAApxFi21sx4MpkXkQ1NHmpTtgOJ6adNRrHtlYH64S7pXwMhakkbg5f437BGi444otq7vtB4QFXqQHuBQsfVnbpMpDin5u3qu2cqbNEgmEwH-NMJ.jpg)