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SL1278P Handheld Transit Time Flowmeter by SiteLab

SL1278 Ultrasonic Flowmeter from SiteLab at Procon Instrument Technology
The New SL1728P from SiteLab is a Digital Handheld Transit Time flow meter that replaces the SL1168P Ultrasonic flow meter. It provides a measuring system with excellent accuracy, versatility, ease of use, and dependability.

The SL1278P Ultrasonic flowmeter enables the user to do flow measurement checks at many points in throughout the flow process without the need for a permanent installation.

This universal transit-time meter features a dual-function push button interface, ergonomic handheld design and a 3.5in TFT backlit digital display that significantly simplifies setup and data collection.


    contact us  for more information about the SL1278P


Compared with other traditional flow meters or ultrasonic flowmeters the SL1728P has distinctive features such as:

  • high precision
  • high reliability
  • high capability
  • low cost
  • TVT technology designed
  • less hardware components
  • low voltage broadband pulse transmission
  • low power consumption
  • clear and user-friendly menu selections
  • daily, monthly and yearly totalised flow.
  • parallel operation of positive, negative and netflow
  • totalises with scale factor (span)
  • 7 digit display
  • output of totalise pulse and frequency output are transmitted via relay and open collector


SL1728P Transit Time Flow Meter Specifications


Performance Specifications     Flow Range +0.01m/s ~ +12m/s
Accuracy +1.0% of measured value
Repeatability 0.3%
Linearity +1%
Pipe Size Clamp-on: 25mm ~ 1200mm
Functional Specifications Outputs
Analogue output: 4~20mA, max load 750Ω
SD Card
Storage: 8GB
Max: 512 files
Interval: 1 ~ 60 seconds
Power Supply Rechargeable Lithium Battery (continuous operation of main battery 10 hours)
Keypad Tactile keys
Display 3.5" TFT screen (320 x 240), backlit LCD
Transmitter: -10°c ~50°c
Transducer: -40°c ~80°c
Humidity Up to 99% RH, non-condensing
Physical Specifications Transmitter NEMA13, IP54
Transducer Encapsulated design, IP68
Transducer Cable Standard cable length: 5m
Transmitter: approximately 1.0kg


SL1278P Flow Meter Document Downloads

Download the SL1278P Data Sheet for more information on:

Wiring Diagram

Transmitter Dimensions

Transducer Installation Methods

Installation Site Selection

Ordering Information

Package Contents




Flow Type: Liquid Flow Meters