RadarRight - Radar Level Sensor - Non Contact - Liquids
Non-Contact, Radar Level
For Liquids

RadarRightTM Series 200



Non-contact level measurement solution...nothing to "touch" your process
Easy set-up / configuration with LCD push button display module (included)
Real-time continuous output provides immediate level measurements.
No moving parts to wear which leads to long operational life and low maintenance.
Proven microwave "pulse" technology for dependable measurements
Small beam angle to centralize energy for high accuracy and reliability with materials
having a wide range of characteristics
Small "dead band" ("blanking zone") for enabling full tank measurement in small vessels
Advanced microprocessor and unique echo processing technology,
enables reliable operation under various process applications
"Pulse" technology results in extremely low emission power; suitability for various metal or nonmetal vessels; and is harmless towards the environment and human beings
Can be provided with a variety of antennas and process connections - Small antenna sizes (diameters) for easy mounting
Suitable for many liquid applications in vessels with heights up to 98.5 ft. (30m) with 4 inch dia. antenna
Series 400 for powder / bulk solids applications is also available...Click Here

Contact MonitorNeed some more information?...Click on the button.


Principle of Operation



Antenna Selection

Output / Communications Options

Interface Options

Ordering Information Warranty  

Support Documents:

RadarRight, Series 200 Product Sheet
Application Questionnaire - Liquids (Fillable PDF)


Similar Item(s):

RadarRight - Radar Level Sensor - Non Contact  
RadarRight(TM) Series 400 for Powders / Bulk Solids  


Principle of Operation - RadarRight Non-Contact Radar Level Sensor

The RadarRight(TM) radar level sensor emits a microwave pulse from its antenna, which travels at the speed of light to the surface of the medium below. The time-of-flight of the pulse and its reflection back to the instrument location is directly related to the empty distance in the vessel and the material level. The output from the electronics is continuously updated as the level of the material surface changes.

Radar level sensor on liquids vessel


Applications for Non-Contact Radar Level Sensor - Liquids

Excellent when application requires that nothing contacts or interferes with the process.

Strong performance for liquids in vessels up to 98.5 ft. (30m) tall with 4 inch (98mm) diameter horn.

Provides measurements in storage tanks & process tanks under process conditions such as: applications with low or non-corrosive media, light surface foam or agitation, condensation or vapor, etc.

Can be used in a stilling well…ideal for foamy conditions.

Typical applications include, but are not limited to:
> Liquids
> Water
> Wastewater
> Diluted Chemicals
> Petroleum
> And more!

Antenna (Horn) Selection

3 Inch (78mm) Diameter, SS Antenna -
or vessels up to 49.2 ft. (15m) tall

4 inch (98mm) Diameter, SS Antenna -
or vessels up to 98.5 ft. (30m) tall

Ordering Information - RadarRight Series 200 - Liquids

Part #, Description
16-3070, Flange, “K” Style, Flat, Aluminum, 1-1/2 NPT (suitable for 3” and 4” antennas)
16-3072, Flange, “K” Style, 10 Degree, Aluminum, 1-1/2 NPT (suitable for 3” and 4” antennas)
16-3064, Flange, 4” ANSI, Powder Coated Steel, 1-1/2 NPT (suitable for 3" and 4” antennas)
16-3094, Flange, 4” ANSI, 316SS, 1-1/2 NPT (suitable for 3” and 4” antennas)
1-2400, Spanner Wrench For Cover Removal / Tighten
R0514-22001, Belden 9322, Cable, Instrumentation, 2-Lead, Shielded (Notes 8 and 9)
R0514-18001, Cable, Instrumentation, 4-Lead, Shielded, 18 AWG 4 (Notes 8 and 9)
17-8021, Power Supply, Universal AC to 24VDC 4 (Notes 9)

1 Consult Monitor Technologies factory for all applications prior to pricing and issuing quotation.
2 For use with HMI2 Operator Interface.
5 Flange accessories include a 1-1/2” NPT center hole for attaching to RadarRightTM units with 1-1/2” NPT
threaded process connection.
8 Cable is not for plenum installations. Consult local electrical codes and verify compliance before installing.
9 Cable or power supply are not included. Must be ordered separately.


Output / Communications Options

Analog 4-20mA (two-wire, loop powered)

“Smart” RS-485 / Modbus RTU Compatible (two-wire)


Interface Options

LCD Push Button Display Module - included with all models
(For use with Smart RS-485 / Modbus or 4-20mA Analog models)

HMI2 Local Operator Interface Control Console - Optional
(For use with Smart RS-485 / Modbus models only)


Application: Liquids for Vessels up to 98.5 ft. (30m) High (with 4 inch diameter antenna)
Max. Measurement Range:
] With 3 Inch (78mm) Diameter Antenna: 49.2 ft (15m)
] With 4 Inch (98mm) Diameter Antenna: 98.5 ft (30m)
Measurement Accuracy: ±0.12in (±3mm)
Ambient Operating Temp.: -40~150° F (-40~65° C)
Process Temperature: -40~266° F (-40~130° C)
Process Pressure: -14.5 to 150 psi (-1 to 10 bar)
Dead Band: 12” (30.48cm) / Factory Set
3dB Beam Angle:
] 3” (78mm) Dia. Antenna: 12°
] 4” (98mm) Dia. Antenna: 8°
Weight (Approx.) 4.5 lbs [2kg] without flange
Frequency Range: 26GHz
Signal Output: Smart RS-485 / Modbus RTU)Compatible (2-wire);
4-20mA Analog (2-wire, loop powered)

Power: 24VDC (16~26VDC)
LCD: Standard
Housing: Die cast aluminum,
Housing Finish: Powder Coating
Process Connection: 1-1/2” NPT Thread
Flange Accessories: K-Flange; 4” ANSI
Antenna(s): 3" (78mm) Dia., 4” (98mm) Dia. - Stainless Steel
Approvals: CE Mark; TUV Rheinland US/C, Ordinary Locations



Monitor Technologies LLC warrants each RadarRightTM sensor to be free from defects in material and workmanship under normal use and service for two (2) years from the date of purchase. The purchaser must notify Monitor of any defects within the warranty period, return the product intact, and prepay transportation charges. The obligation of Monitor Technologies LLC under this warranty is limited to repair or replacement at its factory. This warranty does not apply to any product which is repaired or altered outside of Monitor Technologies’ factory, or which has been subject to misuse, negligence, accident, incorrect wiring by others, or improper installation. Monitor Technologies LLC reserves the right to change the design and/or specifications without prior notice.

Part Numbers / Product Configurations

Part # > Product Configuration

Information on this page is subject to change without notice.

Last Rev.: January 01, 2019