WADECO Co., Ltd.
New ProductsProducts InformationCompany ProfileContact Us
Products Information

Single Point Level Sensor

4 Channel Deluxe Type Microwave Sensor MWS-ST/SR-2


MWS-ST/SR-2 type microwave sensor is a level switch which consists of a transmitter and a receiver, installed face to face. It comes with four channels to allow for installation of multiple sets in close proximity.
The transmitter transmits microwaves toward the receiver and an output relay in the receiver is released when the beam is obstructed.
Harsh environments may result in the buildup of contaminants on the sensing surfaces, however, the sensor easily penetrates this buildup, thanks to the high penetrability of microwaves.



100m Range with heterodyne detection

Approx. 100m range with a ø27mm antenna, thanks to the Heterodyne detection method.

High penetration

Easily penetrates process buildup on antenna, firebrick, refractory etc., thanks to the increased operating range.

Unaffected by adverse environments

The sensor is unaffected by surface contaminants, flames, steam, vapor or airborne particles.

Selectable detection mode

Either broken beam (BLOCK) or unbroken beam (UNBLOCK) detection method may be selected.

On delay time rheostat

On delay time, adjustable 0.1~10secs., prevents instantaneous detection of falling material whilst filling.

15 LED indicator bank

A 15 LED indicator array displays the received power level and the sensitivity-set-point, allowing for visual sensitivity adjustment and maintenance.

No set-to-set interference

Four channels are available, selectable by rotary switch, eliminating set-to-set interference.

Inspection window (optional)

The received power level and the sensitivity-set-point are easily seen, without removing the controller cover.

High speed static relay (optional)

5msec response time static relay.


  Transmitter Receiver
Power Supply
AC100~120V or AC200~240V ±10%, 50/60Hz
Power consumption
Operating distance
Less than 80m
Frequency and transmission power
24GHz approx. Less than 10mW

* The operating distance may vary from sensor to sensor and according to installation.