Proven Handheld Pressure Source, 6 Models

Handheld Pressure Source

A handheld pressure source is the fastest way to pressurise an instrument without a power supply, a compressor line or a bench. The YHTC handheld pressure source range covers six hand-operated units for hydraulic, air and micro-pressure work, from -50 kPa up to 70 MPa.

Every unit in the lineup is single-operator: one person pumps, one person reads, or the same person does both. Each model below links to its full specification page.

Product Categories

Digital Pressure Gauge

Fully Automatic Pressure Calibration Series

Pressure Test & Calibration Pumps

Benchtop Pressure Source

Handheld Pressure Source

Pressure Accessories

Power Supply

TC168S portable hydraulic pressure pump, front view of the test port block

TC168S Handheld Hydraulic Power Source (0～40) MPa

TC166S handheld air pressure source by YHTC

TC166S Handheld Air Pressure Source (-0.095～6) MPa

TC166W micro-pressure pump (-50～250) kPa

TC166A portable air pressure source side view

TC166A Manual air pressure source (-0.095-16) MPa

TC166W micro-pressure pump (-50～50) kPa

TC168S Handheld Hydraulic Power Source (0～70) MPa

The Handheld Pressure Source Range at a Glance

Six configurations, grouped by medium:

TC168S — handheld hydraulic power source for 0~70 MPa, the highest-pressure unit in the range for heavy hydraulic test and calibration work.
YH168S — handheld hydraulic power source for 0~40 MPa, a lighter-duty companion for standard hydraulic checks.
TC166A — manual air pressure source covering -0.095~16 MPa, for pneumatic instruments that need both vacuum and overpressure steps.
TC166S — handheld air pressure source for -0.095~6 MPa, the everyday pneumatic unit.
TC166W — micro-pressure pump in two variants, -50~50 kPa and -50~250 kPa, for low-range sensors where a full-size pump is too coarse.

Why Handheld? Where Hand-Powered Sources Still Win

Benchtop and automatic systems are more comfortable, but a handheld pressure source has three advantages that a bench unit cannot copy:

It goes where the instrument is. Field checks, commissioning and OEM lines rarely put the pump next to the test point.
No power, no hoses, no setup. Crank the handle and the line is pressurised — the whole system is the one thing you carry.
It is the reference for the reference. Many labs keep a handheld unit to sanity-check the bench before a certification run.

If the same job must run all day, at volume, that is when you step up: see our benchtop pressure sources for the fixed-line versions, or the parent pressure test & calibration pumps category for the full family.

Typical Applications

Where a handheld pressure source earns its place:

Field service and commissioning of hydraulic equipment, where 0~70 MPa coverage means one unit per truck.
Pneumatic instrumentation: regulators, transmitters and switches checked at the panel, not in the lab.
Micro-pressure sensors — the TC166W’s kPa range is sized for the instruments that fail when pumped too hard.
OEM production verification before shipment, and as a portable second opinion in calibration labs.

For the traceability side of the workflow, NIST’s overview of pressure and vacuum calibrations is a plain-language reference for how these readings stay connected to national standards.

Quality and Support

Every handheld pressure source is manufactured by YHTC, an ISO 9001-certified pressure calibration equipment maker in Beijing. Each unit is cycled through its full range before packing and ships with a 12-month warranty.

Tell us the medium, the range and where the work happens — the field, the lab or the line — and we will match the right unit. Contact us for the full specification sheet.

Quick Questions

How hard is 70 MPa to pump?
The TC168S uses a lever and gear system so one operator can reach the top of the range; for sustained high-pressure work, the benchtop versions do the job with less effort.

Can one unit do vacuum and pressure?
Yes on the air side: the TC166A and TC166S both cover negative steps, and the TC166W micro-pressure pump works from -50 kPa upward.