MCS carries a variety of Sensors including temperature sensors, humidity sensors, current sensors, pressure sensors, voltage sensors and CO2 sensors. All sensors are tested in house prior to being shipped.





Temperature and Humidity Sensors


MCS-T100

The MCS-T100 is an extremely fast acting temperature sensor built for demanding environments. It is ideal for high moisture locations with continuous freeze and thaw cycles. The sensor is potted with a thermally conductive RTV Cure Silicon Adhesive to guarantee durability and response. Its high accuracy allows for interchangeability in the field. The large resistance range allows the use of over 1000’ of cable with no noticeable effect. By placing a 100,000 ohm resister between signal and ground the sensor may be used in a three wire input mode.

Part Number Minimum Temperature range Maximum Temperature range Cable Length
MCS-T100-20 −40°F
−40°C
+270°F
+132°C
20 Feet
MCS-T100-40 −40°F
−40°C
+270°F
+132°C
40 Feet
MCS-T100-60 −40°F
−40°C
+270°F
+132°C
60 Feet
MCS-T100-L-20 −60°F
−51°C
+48°F
+9°C
20 Feet
MCS-T100-L-40 −60°F
−51°C
+48°F
+9°C
40 Feet
Description -40° to +270°F (-40° to +132°C) temperature sensor in a stainless steel deep drawn tube with 20', 40', or 60' of 2 conductor shielded cable.
Spec Sheets MCS-T100 Spec Sheet
MCS-T100-L Spec Sheet
Application Notes APP059A - SUCTION SIDE Installing a MCS-T100 Temperature Sensor

MCS-T100-AVG-20

The MCS-T100-AVG-20 comprised of four MCS-T100-20s in addition to a Nema 4X mounting enclosure used to read the average temperature. The Nema 4X is a durable, weatherproof, enclosure which is suited to be mounted inside or outside.

Part Number Minimum Temperature range Maximum Temperature range Cable Length
MCS-T100-AVG-20 −32°F
−0°C
+158°F
+70°C
20 Feet
Description 32° to +158°F (0° to +70°C) temperature range for four MCS-T100-20 sensors that all connect to our five input board that communicates with the MCS-Magnum to average the four sensors.
Spec Sheets MCS-T100-AVG-20 Spec Sheet
Installation MCS-T100-AVG-20 Wiring Diagram

MCS-T300

The MCS-T300 is an extremely fast acting temperature sensor built for demanding environments. It is ideal for high moisture locations with continuous freeze and thaw cycles. The sensor is potted with a thermally conductive RTV Cure Silicon Adhesive to guarantee durability and response. Its high accuracy allows for interchangeability in the field. The large resistance range allows the use of over 1000’ of cable with no noticeable effect. By placing a 100,000 ohm resister between signal and ground the sensor may be used in a three wire input mode.

Part Number Minimum Temperature range Maximum Temperature range Cable Length Accessories
MCS-T300 −22°F
−30°C
+125°F
+51.6°C
20 Feet YES
See Below
MCS-T300-L −76°F
−60°C
+32°F
+0°C
20 Feet YES
See Below
MCS-T300-H −32°F
0°C
+250°F
+121.1°C
20 Feet YES
See Below
Description -22° to +125°F (-30° to +51.6°C) temperature sensor in nickel plated copper deep drawn tube with 20' of 3 conductor shielded cable.
Spec Sheets MCS-T300 Spec Sheet
MCS-T300-L Spec Sheet
MCS-T300-H Spec Sheet
Application Notes APP046 - MCS-T300, MCS-T300HT, and MCS-T300LT Temperature Sensor Input to MCS-MAGNUM

MCS-TUBE

The MCS-TUBE can be epoxied to a discharge or suction line in order to obtain temperature readings without the use of a well. It was designed to be used with the MCS-T100 temperature sensor and comes pre-filled with heat conductive compound to aid in transferring temperature to the sensor.

Part Number Diameter Tube Length Overall Length
MCS-TUBE 0.425" OD
0.355" ID
2.75" 20.75"
Description Thin walled deep drawn copper tube 2¾" long with an 0.425" outside diameter filled with heat transfer grease. Designed to hold a MCS-T100 temperature sensor.
Spec Sheets MCS-TUBE+WELL Spec Sheet

MCS-WELL

The MCS-Well was designed to be used with the MCST100 temperature sensor, although it has other applications. It comes pre-filled with heat conductive compound to aid in temperature to the sensor.

Part Number Diameter Tube Length Overall Length
MCS-WELL-1/4 0.400" OD
0.300" ID
1.8" 4.75"
MCS-WELL-1/4-3 0.400" OD
0.300" ID
3.00" 6.00"
MCS-WELL-1/2 0.400" OD
0.300" ID
1.75" 4.75"
MCS-WELL-1/2-3 0.400" OD
0.300" ID
3.00" 6.00"
MCS-WELL-1/2-DB 0.400" OD
0.300" ID
1.81" 3.50"
MCS-WELL-3/4 0.400" OD
0.300" ID
1.75" 4.75"
Description A tube filled with heat transfer grease that has been soldered onto a ¼", ½", or ¾" brass hex fitting with NPT thread. Total length is 2½", 2¾", 3½", 3.68", or 4".
Spec Sheets MCS-TUBE+WELL Spec Sheet

MCS-SAIR

The MCS-SAIR consists of a MCS-T100 temperature sensor with an air supply bracket. The mounting base is 2” x 2” for inserting into an air duct with 20’ or 40’ of two-conductor shielded cable.

Part Number Minimum Inserting into Air Duct Cable Length
MCS-SAIR-20 2.25" 20 Feet
MCS-SAIR-40 2.25" 40 Feet
MCS-SAIR-60 2.25" 60 Feet
Description An MCS-T100 temperature sensor with an air supply bracket. Mounting base is 2" x 2" and requires a minimum of 2.25" for inserting into air duct. Comes with 20', 40', or 60' of 2 conductor shielded cable.
Spec Sheets MCS-SAIR Spec Sheet
Installation MCS-SAIR Wiring Diagram

MCS-ZONE-II

An extremely reliable sensor packaged in a very durable aesthetic package. The sensor is potted with a thermally conductive RTV Cure Silicon Adhesive to guarantee durability and response, its high accuracy allows for interchangeability in the field.

Part Number Description
MCS-ZONE-II Temperature sensor board packaged in a plastic housing 4.30"w x 6.50"l x 2.25"h.
MCS-ZONE-II-OVR MCS-ZONE-II with an override pushbutton
MCS-ZONE-II-OVR-T/R MCS-ZONE-II with override pushbutton and target reset pushbutton
Spec Sheets MCS-ZONE-II Spec Sheet
Installation MCS-ZONE-II Wiring Diagram
MCS-ZONE-II-OVR-T/R Wiring Diagram

MCS-HUMD-II

The Temperature Humidity zone mounted sensor is supplied in an attractive package which can be mounted on standard USA or Overseas electrical boxes. The package includes rubber wire grommets that eliminate any draft influence on the sensors. Both the temperature and humidity sensors are the MCS highly reliable sensors with accuracy, durability and extremely fast response time.

Part Number Description
MCS-HUMD-II Combination humidity and ambient temperature sensor board packaged in a plastic housing 4.30"w x 6.50"l x 2.25"h.
MCS-HUMD-II-OVR MCS-HUMD-II with override pushbutton
MCS-HUMD-II-OVR-T/R MCS-HUMD-II with override pushbutton and target reset pushbutton
Spec Sheets MCS-HUMD-II Spec Sheet
Installation MCS-HUMD-II Wiring Diagram
MCS-HUMD-II-OVR-T/R Wiring Diagram

MCS-HUMD-OS

Outside Air Combination Sensor with Humidity Transmitter and 100K Thermistor Temperature Transmitter.

Part Number Description
MCS-HUMD-OS Combination humidity and ambient temperature sensor board packaged in a plastic housing 2.82"w x 2.35"l x 7.98"h.
Part Number MCS-HUMD-II
Description Combination humidity and ambient temperature sensor board packaged in a plastic housing 4.30"w x 6.50"l x 2.25"h.
Spec Sheets MCS-HUMD-OS Spec Sheet
Installation MCS-HUMD-OS Installation and Operation Instructions




MCS-THERMOSTAT

This user friendly interface allows the viewing of 17 different parameters and has the ability to change 9 adjustable settings including cooling & heating system setpoints, operational schedules, holiday schedules, calibration and password protection.

Part Number MCS-THERMOSTAT
Description The MCS-THERMOSTAT is a temperature and humidity sensing smart device with a backlit LCD display permitting remote adjustments to the MicroMag controller.
Spec Sheets MCS-THERMOSTAT Spec Sheet
Wiring Diagrams MCS-THERMOSTAT Wiring Diagram
Documents MCS-THERMOSTAT Installation & Reference Manual




Current Sensors


MCS-CT

The MCS-CT current sensor monitors current flowing to electrical equipment. The magnitude of the current is converted to a linear 0 to 5vdc output signal which can be read as a standard analog input signal.

Part Number Description
MCS-CT300 300:0.2 current transformer with circuitry to convert induced ac voltage into a 0-5vdc output voltage. Wire hole diameter: 1.00"
MCS-CT500 500:0.2 current transformer with circuitry to convert induced ac voltage into a 0-5vdc output voltage. Wire hole diameter: 1.56"
MCS-CT750 750:0.2 current transformer with circuitry to convert induced ac voltage into a 0-5vdc output voltage. Wire hole diameter: 2.05"
MCS-CT1500 1500:0.2 current transformer with circuitry to convert induced ac voltage into a 0-5vdc output voltage. Wire hole diameter: 4.25"
Spec Sheets MCS-CT300 Spec Sheet
MCS-CT500 Spec Sheet
MCS-CT750 Spec Sheet
MCS-CT1500 Spec Sheet
Installation MCS-CT300 Wiring Diagram
MCS-CT500 Wiring Diagram
MCS-CT750 Wiring Diagram
MCS-CT1500 Wiring Diagram

MCS-POWERMETER

A MCS-POWERMETER uses direct connections to each phase of the voltage, and uses rope current transformers to monitor each phase of the current.

Part Number Description
MCS-POWERMETER The MCS-POWERMETER monitors the voltage, current, power, energy, and many other electrical parameters on single and three-phase electrical systems.
MCS-POWERMETER-KIT The MCS-POWERMETER monitors the voltage, current, power, energy, and many other electrical parameters on single and three-phase electrical systems. Kit includes an MCS-MODBUS-I/O allows the MCS-MAGNUM to communicate to the MCS-POWERMETER as a Modbus slave device.
Spec Sheets MCS-POWERMETER Spec Sheet
MCS-POWERMETER-KIT Spec Sheet




Pressure Transducers


MCS Pressure Transducers

The absolute pressure transducer is specially designed for use in HVAC/refrigeration applications, in the most demanding environments, where low cost is needed yet maintaining high accuracy, long term reliability, and long life.

Part Number Minimum PSI Maximum PSI Cable Length
MCS-150AC 0 150 Sensor Only
MCS-150AC-20 0 150 20 Feet
MCS-150AC-40 0 150 40 Feet
MCS-150AC-60 0 150 60 Feet
MCS-200C 0 200 Sensor Only
MCS-200C-20 0 200 20 Feet
MCS-200C-40 0 200 40 Feet
MCS-200C-60 0 200 60 Feet
MCS-500C 0 500 Sensor Only
MCS-500C-20 0 500 20 Feet
MCS-500C-40 0 500 40 Feet
MCS-500C-60 0 500 60 Feet
MCS-667C 0 667 Sensor Only
MCS-667C-20 0 667 20 Feet
MCS-667C-40 0 667 40 Feet
MCS-667C-60 0 667 60 Feet
Part Numbers MCS 150, 200, 500, & 667 PSI Pressure Transducers
Description Absolute psi gage pressure transducers with SAE female flare fittings and Schrader valves.
Spec Sheets MCS-150AC Spec Sheet
MCS-200C Spec Sheet
MCS-500C Spec Sheet
MCS-667C Spec Sheet
Installation MCS Pressure Transducer Installation Diagram
MCS Pressure Transducer Wiring Diagram (DWG)
Documents AppNote MCS Transducer Installation

PACK-CON

Part Number Description
PACK-CON-20 Packard connector with 20' 3 wire shielded cable for MCS pressure transducers.
PACK-CON-40 Packard connector with 40' 3 wire shielded cable for MCS pressure transducers.
PACK-CON-60 Packard connector with 60' 3 wire shielded cable for MCS pressure transducers.

MCS-STATIC

Differential (static) pressure transducer that is designed to handle dry air or non-conducting gas.

Part Number Minimum Inches WC Maximum Inches WC
MCS-STATIC-0.2" 0 0.2
MCS-STATIC-5"-B 0 5.0
MCS-STATIC-50" 0 50.0
Spec Sheets MCS-STATIC-0.2" Spec Sheet
MCS-STATIC-5" Spec Sheet
MCS-STATIC-50" Spec Sheet
Installation MCS-STATIC-0.2 Wiring Diagram
MCS-STATIC-5 Wiring Diagram

MCS-DIFF

Differential Pressure Transducers used in demanding environments.

Part Number Minimum Pressure Range Maximum Pressure Range
MCS-050-DIFF 0 50
MCS--050-DIFF-XP 0 50
Part Number MCS-DIFF
Description Differential pressure transducer that is an economic and durable option for dealing with differential-pressure industrial applications.
Spec Sheets MCS-050-DIFF Spec Sheet
MCS-050-DIFF XP Spec Sheet
Installation MCS-050-DIFF Wiring Diagram




Other Sensors


MCS-PHASE

Programmable 3-phase line voltage monitor with 25-fault memory, high temperature LCD display, easy setup and clear diagnostic readout of system faults. The MCS-PHASE was specifically designed to protect motors and other 3-phase loads from premature failure and damage due to common voltage faults such as unbalance, over/under voltage, phase loss, reversal, incorrect sequencing and rapid short cycling.

Part Number Description
MCS-PHASE Three phase voltage monitor / 190-630vac 50-60Hz
Spec Sheets MCS-PHASE Spec Sheet
Installation MCS-PHASE Wiring Diagram

MCS-CONDUCTIVITY

The MCS software accurately translates this voltage to read out the fluid conductivity in standard units of mS/cm. This value is compared with setpoint information to control bleed andfeed functions.

Part Number MCS-CONDUCTIVITY
Description The MCS-CONDUCTIVITY is a conductivity-to-voltage transducer which takes its input from a carbon electrode probe in a fluid stream and outputs a corresponding voltage to a MCS-8 micro controller.
Spec Sheets MCS-CONDUCTIVITY Spec Sheet

MCS-VOLTAGE-1PH

Part Number MCS-VOLTAGE-1PH
Description The MCS-VOLTAGE-1PH board accepts AC voltage inputs of 200vac to 600vac and generates a DC voltage output of 1.42vdc to 4.91vdc to a sensor input of an MCS-MAGNUM micro controller that is programmed to convert this signal to the corresponding AC voltage.
Spec Sheets MCS-VOLTAGE-1PH Spec Sheet
Installation MCS-VOLTAGE-1PH Wiring Diagram

MCS-VOLTAGE-3PH

Part Number MCS-VOLTAGE-3PH
Description The MCS-VOLTAGE-3PH board accepts AC voltage inputs of 200vac to 600vac and generates three separate DC voltage outputs of 1.42vdc to 4.91vdc to a sensor input of an MCS-MAGNUM micro controller that is programmed to convert this signal to the corresponding AC voltage.
Spec Sheets MCS-VOLTAGE-3PH Spec Sheet
Installation MCS-VOLTAGE-3PH Wiring Diagram

MCS-CO2-W

The MCS-CO2-W is a CO2 sensor designed to mount on a wall. The MCS-CO2-W measures the CO2 in a range of 0 to 2,000 ppm with an output of 0-5 VDC. The MCS-CO2-W utilizes a gold-plated infrared (NDIR) waveguide technology for enhanced stability, accuracy and reliability.

Part Number Description
MCS-CO2-W The MCS-CO2-W measures the CO2 in a range of 0 to 2,000 ppm with an output of 0-5 VDC.
MCS-CO2-W-LCD Carbon dioxide wall mount transmitter w/ LCD of CO2 level 4 Digits, 7 segments LCD with ppm indicator.
Spec Sheets MCS-CO2-W/MCS-CO2-W-LCD Spec Sheet
Installation MCS-CO2-W Mounting and Wiring Instructions

MCS-CO2-D

The MCS-CO2-D is a CO2 sensor designed to mount in a duct. The MCS-CO2-D measures the CO2 in a range of 0 to 2,000 ppm with an output of 0-5 VDC. The MCS-CO2-D utilizes a gold-plated infrared (NDIR) waveguide technology for enhanced stability, accuracy and reliability.

Part Number MCS-CO2-D
Description The MCS-CO2-D measures the CO2 in a range of 0 to 2,000 ppm with an output of 0-5 VDC.
Spec Sheets MCS-CO2-D Spec Sheet
Installation MCS-CO2-D Mounting and Wiring Instructions