In late 2019, Greyline Instruments & Pulsar Process Measurement merged, deciding the newly formed, combined business would rebrand to become Pulsar Measurement. Aiming to create a stronger platform and carry on supporting customers with a wider range of complementary technologies & services from a single brand identity. A variety of applications; industrial flow and level monitoring instruments including ultrasonic level transmitters, clamp-on ultrasonic flow meters & open channel flow meters.

AVFM 6.1 Area-Velocity Flow Monitor

Measure flow through partially filled pipes, channels, canals and turnouts without a flume or weir. Ideal for wastewater, stormwater, effluent, industrial wastewater and irrigation water. Configuration is simple: enter the pipe diameter or channel shape and the AVFM 6.1 computes the flow volume and displays the flow rate. Measure forward and reverse flow and calibrate to channels of any shape.

Blackbox 130

Blackbox 130 is a compact low-cost intelligent controller that offers non-contacting level measurement. The Blackbox 130 features a 4-20mA output, which can be supplied isolated or non-isolated, proportional to level and two alarm or control relays.

dBi HART Transducer Series

The Pulsar dBi HART Transducer Series are a range of self-contained, intelligent non-contacting ultrasonic level measurement transducers which make use of HART communication protocols to make plant integration simple. Four range choices are available with either 3m, 6m, 10m or 15m range (10ft, 20ft, 33ft or 49ft).

dBi PROFIBUS Transducer Series

The Pulsar dBi Profibus PA Transducer Series are a range of self-contained, intelligent non-contacting ultrasonic level measurement transducers which make use of Profibus PA communication protocols. Four range choices are available with either 3m, 6m, 10m, or 15m rnage (10ft, 20ft, 33ft or 49ft), all of which take simplicity, convenience and accuracy to a new level.

DFM 6.1 Doppler Flow Meter

Designed for "difficult liquids" that would damage regular flow meters - wastewater, slurries, sludge, chemicals, viscous liquids and abrasives. There is no obstruction to flow and no pressure drop. The non-intrusive, clamp-on ultrasonic sensor fits any pipe 1/2" (12.5 mm) Inside Diameter or larger. The DFM 6.1 features enhanced performance in a wide range of applications. Improved industrial noise immunity filters potential interference souces.

DFS 5.1 Doppler Flow Switch

The DFS5.1 Clamp-on Flow Sensor installs without cutting the pipe. The sensor continuously injects high frequency sound through the pipe wall and into the moving fluid where acoustic pulses are reflected back to the sensor from particles or bubbles in the fluid. The unit includes On and Off relay set-points and time delay options with LED bargraph for flowrate.

DLT 2.0 Differential Level Transmitter

Simple solution for barscreen level control at wastewater treatment plants, headworks, pump stations and combined sewer systems. Install a sensor on each side of mechanical barscreen to continuously monitor, transmit and control level. Built in control relays or 4-20mA outputs automatically activate the barscreen rake at preset levels.

FlowCERT-Open Channel Flow Meter

The FlowCERT open channel flow meter provides comprehensive flow monitoring with data logging and control functions. It is compatible with a range of sensors to create a flow metering system for any application.

IMP Lite Ultrasonic level sensor

IMP Lite Lower-cost alternative to IMP+ for level measurement. Just like the IMP+, the IMP lite can be used wherever a reliable non-contacting ultrasonic level measurement and digital echo processing is needed. Also, recomnded for for slurries or liquids. Analogue output to interface with site control system or drive a display.

IMP+ Ultrasonic level sensor

IMP+ can be used wherever reliable non-contacting ultrasonic level measurement and digital echo processing is needed. IMP+ is recomended for slurries or liquids. Analogue output to interface with site control system or drive a display.

ISM 5.0 Insertion Magmeter

The Accurate, Low Cost Alternative to Full-bore Magnetic Flow Meters. Measure flow of water and conductive liquids in full pipes from 3 to 72" (80 to 1800 mm) diameter. The dual pair electrode sensor inserts through a tap in the pipe wall. It can be easily installed in new pipe systems or by hot tap in pressurized pipes with flowing liquids. There are no moving parts so obstruction to flow and pressure drop is minimal.

LIT25 Level Indicating Transmitter

The LIT25 continuously measures, displays, and transmits level in tanks and lagoons, or anywhere you require a level sensor. Includes a non-contacting ultrasonic sensor which is rated Intrinsically safe, a compact watertight electronics/display enclosure, 4-20mA output, backlit LCD display, control relay and simple built-in menu/calibration system.

MantaRay Portable Area-Velocity Flow Meter

Measures flow in open channels, partially filled and surcharged pipes using an ultrasonic sensor. It's designed for monitoring stormwater, sewage, industrial effluent, irrigation water and natural streams. The MantaRay displays and datalogs flow rate and total flow and connects to samplers, SCADA and telemetry systems.

OCF 6.1 Open Channel Flow Monitor

The Greyline OCF 6.1 Open Channel Flow & Tank Level Meter is a perfect solution for your non-contacting measurement needs. New features of the OCF 6.1, replacing the OCF 5.0 Open Channel Flow Meter and SLT 5.0 Level Tank Monitor. Continuously monitor, display, totalize and data log flow and level through any flume or weir.

PDFM 6.1 Portable Doppler Flow Meter

Portable Doppler Flow Meter provides fast, accurate, non-invasive flow measurement for the most challenging industrial environments and mediums. With more advanced signal processing, a low-power mode for extended flow logging applications. A rugged IP67 extruded aluminum enclosure, the PDFM 6.1 is the right choice for your next immediate or long-term flow measurement application for fluids with solids and undissolved gases present, like raw sewage, aerated water, viscous liquids, slurries, and abrasives.

PSL 5.0 Hybrid Pump Station Level Controller

Designed for pump stations, wet wells and tank level control, the Greyline PSL5.0 includes 6 control relays for pump control, alternation, level alarms, dialers or fault alarms. It features a non-contacting ultrasonic level sensor plus redundant sensing with connection of any 4-20mA level sensor. The PSL5.0 automatically stores relay run time reports for pump performance.

PTFM 6.1 Portable Ultrasonic Transit Time Flow Meter

With New, more powerful signal processing hardware, and three interchangeable, non-invasive transducer sizes optimized for a wide range of pipe sizes and materials. The PTFM 6.1 from Pulsar is here to help by providing accurate, non-invasive flow measurement in the most challenging industrial environments and applications, with minimal installation complexity and costs.

Pulsar Guard

The Pulsar Guard acoustic sensor range offers reliable solids flow detection. It detects and reacts instantly to changes in solids flow and warns of blockages and foreign object detection, high flow, low flow or no flow conditions and can detect pigs within the process.

REFLECT 2-Wire Radar Level Sensor

Provides accurate level or volume monitoring of liquids & solids in critical measurement applications; no routine servicing required, withstand the harshest environments while maintaining accuracy in the presence of dust, temperature, moisture, pressure, & chemicals. The REFLECT™ 2-wire radar sensor uses a web-based app to give an easy & convenient way for you to change parameters, access trend reports, & view echo traces.

SFM 6.1 Ultrasonic Slurry Flow Meter

Non-contacting flow monitoring specifically designed for limestone slurry, fly ash slurry, gypsum slurry and many others. The Sensor is mounted on the outside of the pipe so it is unaffected by abrasive slurries or harsh chemicals. There is no obstruction to flow and no pressure drop.

Sludge Finder 2

Pulsar’s Sludge Finder 2 is a controller and transducer system that provides reliable continuous sludge blanket level measurement. Used in thousands of applications worldwide for detecting sludge blanket levels or settlement tanks.

Stingray 2.0 Portable Level-Velocity Logger

For flow surveys in open channels and partially filled pipes. The sealed ultrasonic sensor mounts on the bottom of the pipe or channel. Stingray operates on standard Alkaline D-cell batteries for up to four years. The built in 130,000 point datalogger stores level, velocity and temperature readings at programmable intervals. Logger software included.

TTFM 6.1 Transit Time Flow Meter

Accurately measure the flow rate of relatively clean, non-aerated liquids like potable water, raw water, cooling water, de-ionized or reverse-osmosis water, oils and chemicals in full pipes. Ultrasonic transducers mount on the outside of a pipe without shutting down flow. Flow rate is displayed on the large, backlit display, along with total volume, signal strength, relay status, and other diagnostic values.

Ultra 4

Ultra 4 offers the sophistication and advanced features of the rest of the Ultra range in a compact, cost-effective package and useful new features. Offering 4 alarm or control relays (3 x SPCO isolated and 1 x SPNO solid state) and a multifunctional display.

Ultra 5

Ultra 5 provides flexible and reliable non-contacting ultrasonic level and volume measurement. Featuring five control relays and a measurement range from 125mm to 40m. Available as a wall, panel, fascia or 19" rack mount.

Ultrasonic dB Transducer Series

The dB Transducer Series is a range of non-contacting ultrasonic transducers for level, volume and flow measurement. Available in a variety of models and compatible with all Pulsar controllers.


UltraTWIN Twin-channel ultrasonic measurement with the ability to combine applications. Compatiable with the full range of dB Transducers. UltraTWIN features six relays configurable to either channel.