We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Light grey handheld digital differential gauge with LCD display and back barb connections

Dwyer Instruments Inc.

Dwyer Instruments DM-1103 Digital Differential Gauge 0.5 In WC

SKU CH-Z1SW-CTTGW

Digital differential gauge measures pressures up to 0.5 inches of water column with selectable units and back-mounted barb connections

  • Product typeElectronic
  • Measures differential pressure to 0.5 In WC for precise low-pressure readings
  • Switches between In H2O, kPa, Pa, mBar, mm H2O, mm Hg and % Full Scale for flexible analysis
  • Powered by 9 V battery or 9 to 24 V DC for bench or field use
  • CE compliant for regulated environments
  • 4-digit LCD with 1/8" smooth barb back connection for clear readout and easy hookup

Digital Differential Gauge 0.5 In WC

The Dwyer Instruments DM-1103 is a digital low-pressure gauge designed for technicians who need to measure small differential pressures in HVAC, laboratory or process applications. It offers a 0 to 0.5 In WC range with a four-digit LCD that can display several engineering units.

Glass-Filled Plastic Case and Back Connection

The gauge body and socket are moulded from glass-filled plastic in a light grey finish, providing chemical resistance and a lightweight feel for handheld or panel use. A 1/8-inch smooth barb on the rear accepts flexible tubing directly, so the instrument sits flat against a panel while the hoses run behind it.

Accuracy and Power Options Define Suitability

Stated accuracy is ±2 % of full scale, which determines whether the resolution meets a given test specification. The unit runs from a 9 V battery or an external 9 to 24 V DC supply, letting the buyer choose between portable and permanently powered installations.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $169.99
Pricier than about 73% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameDWYER INSTRUMENTS
Product typeElectronic

Questions about this item

What pressure range does the 0.5 in WC gauge cover?

The gauge measures differential pressure from zero up to 0.5 inches of water column, with selectable display units including kPa, Pa, mBar, mm H2O, mm Hg and percent full scale.

What tubing fits the 1/8 inch smooth barb on the back?

The back-mounted connection accepts 1/8 inch O.D. smooth barb fittings, so push-on tubing with a matching inside diameter slides directly onto the glass-filled plastic socket.

How do you power the DM-1103 for bench use?

Insert a 9 V battery into the compartment or connect an external 9 to 24 V DC supply; the unit operates from either source without additional configuration.

More in Meters, Testers & Measuring Tools

Similar items