Level Transmitters, Probes & Gauges
Level Transmitters, Probes, and Gauges provide level measurement based on the height of a material's surface within a container or system. It is a critical parameter in many industrial and environmental processes, ensuring that operations run smoothly and safely. Level measurement can be conducted using a variety of techniques, including mechanical, ultrasonic, radar, and laser sensors, each suited to different application needs based on the material's properties, the measurement environment, and the required accuracy.
Accurate level measurement is vital for process control, maintaining quality, and ensuring safety in industries ranging from chemical manufacturing to water treatment. The choice of level measurement technology is influenced by factors such as the presence of vapors, pressure, temperature, and the physical and chemical properties of the material. Modern level measurement solutions offer versatility and precision, facilitating efficient process management and control. Below, you will find a comprehensive list of our transmitters, probes, and gauges, each engineered to meet the highest standards of quality and reliability.
Types of Level Transmitters, Probes & Gauges
Products
BA
Displacer Type Level Gauge
Measuring Range up to 230" | 2"...4" ANSI Flange | up to 480 °F | Adjustable Setpoint Switches | Analog, Hart, Profibus-PA
Maximum Measuring Distance
230 Inches
Fittings
2"...4" ANSI Flange
Media Density
25...125 Lb/Ft3
Max. Pressure
Per Flange Rating
Operating Temperature
-40...480 °F (250 °C)
316 Stainless Steel Wetted Parts
Measuring Range to 230 Inches
Optional Adjustable Setpoint Switches
Optional Stilling Wells for Agitated Tanks
Analog Output, HART® and Profibus-PA® Available
Sample Applications: Storage Tanks, Stirring Tanks, Water Tanks, and Tanks with Aggressive Media
KPW
Submersible Pressure Transducer
50 in H20...300 PSIG | High Overpressure Protection | Fast Response Time | Advanced Piezoresistive Sensing Technology
Starting at $1,196
Fast Delivery
Ranges
0...50 inH2O to 0...1,000 PSIG
Accuracy
± 0.25% FS (Standard), ± 0.125% FS (Option)
Fittings
Polyamide or Optional SS Weighted Nose Cone
Wetted Parts
316 SS, Polyamide, Polyurethane
Available Outputs
4-20 mA, 0-5 VDC, 0-10 VDC, 0.5-2.5 VDC
Advanced Semi-Conductor / Thin Film Sensing Technology
Variety of Output Signals
High Overpressure Protection
Stainless Steel Sensor Construction
Sample Applications: Irrigation, Tank Monitoring, Water and Wastewater, and Well Head Measurement
MM
Reed Chain Float Level Sensor
Made in the USA | up to 236" | up to 435 PSIG | up to 260 °F | SS, PVC, PP, or PVDF | 3/8"...2" NPT or 1-1/2"...4" ANSI Flange | Constant Level Indication
Max. Measuring Length
236" (6000 mm)
Max. Pressure
435 PSIG (30 bar)
Max. Temperature
266 °F (130 °C)
Available Wetted Materials
Stainless Steel, PVC, PP, PVDF
Fittings
⅜"...2" NPT, ANSI 1½"...4" Flange
Simple and Reliable Design with Only One Moving Part
Constant Level Indication Regardless of Conductivity, Pressure and Temperature
Output Signal is Directly Proportional to the Liquid Level
NBK
Standard Magnetic Level Gauge
Made in the USA | Long measuring lengths for deep tanks | High pressure & temperatures
Max. Measuring Length
18 ft, Longer with Extended Design
Fittings
½"...1¼" NPT, ½"...2" ANSI Flange
Wetted Materials
316-Ti SS, Titanium
Max. Pressure
Flanged per ASME B 16.5 RF-2009 / NPT to 3600 PSIG
Max. Temperature
750 °F (400 °C)
Options
Resistive Transducer, 4-20 mA Transmitter, Switches, Measuring Scale
KOBOLD Circular Magnet System is Effective from All Sides
Media Temperatures to 750 °F
Sample Applications: Storage Tanks, Tanks on Ships, Agitator Vessels, and Water Tanks
BABA (Build America, Buy America) compliant models available
NBK-04
Top-of-the-Tank Mount Magnetic Level Gauge
Made in USA | Designed for installation into underground tanks | Depths from 20" to 157" | Max 230 PSIG & 250 °F
Max. Measuring Length
13 feet
Fittings
2", 2½", 3", 4" ANSI Flange
Max Temperature
250 °F (120 °C)
Options
4-20 mA Analog Transmitter, Switches, Measuring Scale
Measuring Depths from 20"...157"
Maximum Pressure to 230 PSIG
Maximum Temperature to 250 °F (120 °C)
Highly Visible Level Indication for Underground Tanks
Sample Applications: Storage Tanks, Tanks on Ships, Agitator Vessels, and Water Tanks
BABA (Build America, Buy America) compliant models available
NBK-M
Mini Magnetic Level Gauge
Made in the USA | Up to 9.8 feet in length | Up to 580 PSIG & 390 °F
Max. Measuring Length
9.8 Feet
Fittings
½"...1" NPT, ½"...1" ANSI or DIN Flanges
Material
316 SS Tube & Fittings, Titanium Float
Max. Temperature
390 °F (200 °C) (Option Dependent)
Transducer Accuracy
Max. ± 0.04" (with Option "T")
Available Options
Switches, Transmitters, Scales
316 SS Tube & Fittings, Titanium Float
Maximum Pressure to 580 PSIG
Maximum Temperature to 390 °F
Measuring Lengths to 9.8 Feet
Sample Applications: Storage Tanks, Tanks on Ships, Agitator Vessels, and Water Tanks
BABA (Build America, Buy America) compliant models available
NEO
Ultrasonic Level transmitter
up to 39 feet | 3" or 6" Beam Width | 8" or 18" of Dead Band | 2" or 3" NPT | up to 176 °F | up to 30 PSI | Reliable even with Condensation | Corrosion Resistant
Starting at $1,225
Fast Delivery
Maximum Range
19.6 or 39.3 feet
Temp. Range
-31...140 °F (60 °C) or -40...176°F (80 °C)
Configuration via Push-Button or NEOCal software
Compact and Easily Installed
Resolution of 0.079" or 0.196"
Reliable Measurement even with Condensation
Corrosion Resistant PVDF Transducer
Fail-safe Diagnostics with Selectable Signal Fail-safe Outputs
Intrinsically Safe Versions are Available
NGM
Guided Wave Radar Level Transmitter
Made in the USA | Up to 65 feet of measurement | Ideal for tanks with difficult geometry | Modular probe design
Measuring Range
Liquids up to 65.6 Feet
Fittings
3/4" NPT, G 3/4, ANSI Flange 1½"...4", DIN Flange DN40...DN100
Wetted Parts
316 St. Steel, PEEK, PTFE
Operating Pressure
-14.5...580 PSIG
Media Temperature
-328...482 °F (250 °C)
Accuracy
± 3 mm or 0.03% of Measured Distance, Whichever is Greater
Power Supply
12-30 VDC, 4-Wire
Output
4-20 mA, PNP Switching Output
Suitable for Many Liquids and Light Solids
Independent of Density, Temperature, Pressure and Humidity
Complete Galvanic Insulation of Device Electronics
Ideal Solution for Tanks with Difficult Geometry
BABA (Build America, Buy America) compliant models available
NGR
Guided Wave Radar Level Transmitter
Made in the USA | 6.5 to 13 Foot Probe | up to 145 PSIG | up to 212 °F | Small Inactive Areas | Quick to Commission
Probe Length
6.5 ft...13 ft (Shorter Lengths are Possible)
Maximum Pressure
145 PSIG
Media Temperature
-4 °F...212 °F (100 °C)
Wetted Parts
316L St. Steel, PTFE
Output Measurement
4-20 mA Continuous, Transistor Switch, IO-Link
No Mechanical Moving Parts
Measurement is Independent of Density, Temperature, Pressure and Humidity and Conductivity
Compact and Rotatable Housing Ensures Flexible Installation
Small Inactive Areas, Ideal for Small Vessels
Time and Cost Savings Due to Low Maintenance and Quick Commissioning
NMB
Magnetostrictive Level Transmitters
up to 0.1mm Resolution | Insertion Length up to 50 ft | Rigid or Flexible Probe | 99 Point Linearization Table
Starting at Call for Pricing
Resolution
0.1 mm (0.004") or 1 mm (0.04")
Insertion Length
up to 15 m (50 ft)
Plastic Coated Version for Chemicals
99 Point Linearization Table
Level, Distance, or Volume Measurement
NMC
Capacitive Level Transmitter
11" to 157" Probe | up to 435 PSIG | up to 390 °F | 4-20 mA, 2-wire
Probe Length Range
11" to 157"
Max. Pressure
435 PSIG (30 Bar)
Max. Media Temperature
Up to 390 °F (200 °C)
Input Power
18...36 VDC, 24 VAC, 110 VAC, 230 VAC, 50/60 Hz
Capacitive Monitoring Principle
Measurement of Liquid Levels in Tanks
Four Designs for Various Applications
Sample Application Media: Water, Water-like Liquids, Liquid Foods, Chemicals, Aggressive Liquids, Pharmaceutical Liquids, and Oils
NMS
Compact Magnetostrictive Level Transmitters
300...3,000 mm Measuring Length | Accuracy of ±1 mm | up to 25 bar | up to 90°C | Analog Output - 4-20 mA HART, 2-wire
Starting at Call for Pricing
Measuring Length
300 - 3000 mm
Distance and level measurement
Standard and mini versions
Chemicals, solvents, hydrocarbons
NMT
Magnetostrictive Level Meter
Max Length of 157" | up to 145 PSIG | up to 158 °F | Stainless Steel | 2" NPT | 4-20 mA | Resistant to Machine Vibration
Measuring Length
12...157 Inches
Wetted Material
Stainless Steel
Media Temp. Range
-4...158 °F (70 °C)
Accuracy
± 0.04" (± 1 mm)
Stainless Steel Wetted Materials
Resistant to Machine Vibration
Sample Applications: Chemical Industry, Pharmaceuticals, Tank Farms, Power Stations, and General Process Industries
NRE-4
Non-Contact Radar Level Transmitter - Expert Line
2-wire 80 GHz (W-band) radar | Measuring range up to 30 m (98.5 ft) | Plug-in graphic display module | Accuracy of ±2 mm (±0.078")
Measuring range:
up to 30 m
Connection:
BSP-, NPT-thread male flange 3" ... 12" (DIN, ANSI, JIS)
Material connection:
stainless steel, PP, PVDF, PTFE
Power supply:
12.5 ... 36 VDC, 2-wire
Output:
4 ... 20 mA HART®, relay
2-wire 80 GHz (W-band) radar
Measuring range up to 30 m (98.5 ft)
Accuracy of ±2 mm (±0.078")
Easy to install due to small antenna diameter
Plug-in graphic display module
Horn and plastic encapsulated antennas
User-friendly threshold management
NRE-7
Non-Contact Radar Level Transmitter - Compact Line
2-wire 80 GHz (W-band) radar | Measuring range up to 30 m (98.5 ft) for liquids | Accuracy of ±2 mm (0.078") | Configuration via PC software*
Measuring range:
up to 30 m
Connection:
BSP-, NPT-thread male, flanges
Material connection:
PP, PVDF, PTFE
Output:
4 ... 20 mA HART®, 2-wire, relay
Approval:
Ex ia (ATEX / IECEx), certificate BKI24ATEX0011 X
2-wire 80 GHz (W-band) radar
Measuring range up to 30 m (98.5 ft) for liquids
Accuracy of ±2 mm (0.078")
Easy to install due to small antenna diameter
1", 1½" encapsulated horn antenna
Integrated design with IP 68 protection
User-friendly threshold management
Configuration via PC software*
* in preparation
NTB
Deep Well Level Probe
up to 200 mWC | up to 140 °F | SS, Polyurethane, FPM | Debris Resistant
Measuring Range
0...1 to 0...350 mWC
Wetted Materials
SS, Polyurethane
Max. Pressure
3x Max. Range
NUS-4
Ultrasonic Level Transmitter
Level Measurement or Open Channel Flow Measurement | Polypropylene or PVDF Models | High Accuracy | Narrow Beam Angle | 4-20 mA Standard | Up to 80 feet, 40 PSIA, 194 °F
Measuring Range
Liquids Up to 80 ft (25 m)
Fittings
1-1/2", 2" NPT, 3",5",6" ANSI Flange
Max. Temperature
194 °F (90 °C)
For Level Measurement or Flow Measurement in Open Channels
Measuring Range of Liquids up to 80 feet, Solids up to 32 feet
Polypropylene or PVDF Wetted Parts
Accuracy of ± 0.2 % of Reading, + 0.05 % of F.S.
4-20 mA 2-Wire Output Std, Relays/Display Optional
NUS-7
Compact Ultrasonic Level Transmitter
Excel in Multiple Tank Applications | Programmable Features | Relay Functions | Measurement Configuration and Optimization | Information/Diagnostics | Up to 20 feet, 40 PSIA, and 194 °F
Measuring Range
Liquids up to 20 Feet
Accuracy
± 0.2% of Reading + 0.05% of Full Scale
Wetted Material
PP or PVDF
Maximum Temperature
194 °F (90 °C)
Outputs
4-20 mA HART®, Relay
Relay Functions (Differential, Flow Pulse, etc.)
Measurement Configuration (Units, Function, Close-end Blocking)
Measurement Optimization (Damping, Tracking Speed, Sound Velocity Correction, etc.)
32 Point Linearization, Measurement Simulation
Information/Diagnostics (Echo Map and Signal/Noise)
NZJ
Micro Bypass Level Indicator
4" to 22" Installation Length | up to 230 PSIG | up to 210 °F | up to 50 cSt | 1/4" NPT | Limit Contacts Available
Installation Length
4"...22"
Maximum Pressure
230 PSIG
Maximum Temperature
210°F (100 °C)
Wetted Materials
Stainless Steel (304/316) / Aluminum, NBR, FKM, EPDM, or PTFE Seals
