All TPI Products

TPI 665L Dual Input Tuffman Digital Manometer (Choice of Kit)

Reward Points (?)

Logged in, worth £3.00, read more.

£300.60 £250.50
Free UK Delivery* Delivery Options

UK - Mainland

England, Wales and most of Scotland.

Standard Delivery - Typically Next Working Day
If items in stock1

FREE Over £249
£3.99 Under £249

Guaranteed Next Working Day Delivery


Guaranteed Next Working Day Delivery: Pre-Noon


Weekend Delivery: Pre-Noon


UK - Highlands & Islands

Includes Northern Ireland (excludes Gibraltar).

Standard Delivery - Typically 2-3 Working Day
If items in stock1



Calculated at checkout.

Note: Time frames based on orders placed weekdays before 3:00pm. Prices Ex VAT.

1 See delivery page for more details.

Advice & Support
Price Match Request

Note: this product is available in two variations. Choose between the standard kit/docking station bundle pack using the dropdown box above.

TPI's 665L is a dual-input differential manometer with psi range of ±100 and 0.01 psi resolution.

The tester can measure pressure values from two different sources simultaneously in seven pressure units: bar, kPa, PSI, mmHg, inHg, mH20 and inH20. Testing data can be stored using the tester along with time stamp information (requires optional software) or up to 16 records can be stored on the tester's memory.

Additional functions of this manometer include PC communication (IR to USB interface), 5 digit, dual line display with backlight and MIN/MAX measurements over a period of time.

TPI 665L Dual Input Digital Manometer Key Features

  • Two inputs - measure pressure values from two points simultaneously
  • ±100PSI range
  • Seven pressure measurement units: choose between bar, kPa, PSI, mmHg, inHg, mH20 and inH20
  • Data logging using optinal software package
  • IR to USB interface for connection to PC
  • 5 digit dual line display with backlight
  • Saves up to 16 readings on internal memory
  • MIN/MAX recording
  • Auto power off when left idle

What's Included?

The standard kit comes with:

  • TPI 665L Mannometer
  • 2 x 1.5V Alkaline Batteries
  • Protective Boot w/ Magnets

The optional kit comes with these three items plus:

  • Docking Station
  • PC Software

Optional Accessories

TPI has the following accessories available for this product (part numbers in bold). These are not on the site - please contact our sales team directly for more information if you're interested in ordering.

  • A602 - 30" Vinyl Tube with 1/4" ID with Brass Fitting
  • A605 - 1/4" Brass T Fitting
  • A611 - 5.5" Gas Valve Pressure Adapter
  • A615 - 72" Stainless Steel Braided Hose
  • A617 - 100' Silicone Tubing

TPI 665L Technical Specifications

Measurement Range:  ±101.5 psi (±7bar)
 Display:  5 Digit Dual line LCD with backlight
 Input Type:  Differential (1/4” NPT)
 Resolution (max):  0.01 psi (0.001 bar) (0.1 inH2O)
 Accuracy:   0.2% Full scale
 Repeatability:  0.1% Full scale
 Mean Temperature Coefficient:   0.1% of reading per ºC
 Functions:  One Touch Zero, Data Hold, Back-light, Unit Selection,
 Smoothing, Auto power Off, Min / Max Record,
 Resolution Selection
 Units of Measure:  7Units (bar, kPa, PSI, mmHg, inHg, mmH2O, inH2O)
 Data logging:  5000 Data, 1sec ~ 24 hour
 Data Storage:  16 data points
 Communication:  IR to USB Interface and PC Application software
 (optional p/n A665)
 Battery Type:  AA(1.5V)*2 alkaline (MN1500, LR6)
 Battery Life:  600 hours (Typical)
 Auto Power Off:  20 minutes (can be disabled)
0 Reviews Overall Rating

Write a Review

Write Your Own Review
You're reviewing:TPI 665L Dual Input Tuffman Digital Manometer (Choice of Kit)
Your Rating
Additional Information
Manufacturer Part Code 665L

Subscribe to our Newsletter

International Enquiry