EMS - Industrial Sensors and Controls 

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Sentry Monitor - SM101 - $95     low cost programmable relay control
download manual

Factory programming to match a particular sensor available ($25) - contact email to inquire




in stock

                Sealed against harsh environments
  Microprocessor controlled
  Large LCD display both set point and process variable 
  LED indicates relay operation
  Separate relay and sensor cable glands
  Output relay NC and NO contacts @ 10A
  Keypad for changing the set point or entering the program mode
  Runs on a +12V wall power adapter
  Generates +24V for sensor operation
  Wall mountable
  Factory programming - $25






Part Number SM100

Part Number Codes


SM101 Sentry Monitor 101 
SM101-FADJ Sentry Monitor 100 w/ Factory programming
SM101-ACPORTS AC side ports option - comes with a 3' AC cord has AC socket switched by the alarm relay.

Example: SM101


Accessories Description Price Buy
SMB1-050/088 Sensor mounting bracket $5 order
SJB1-050 1/2" sensor junction box w/side gland $15 order


7/8" sensor junction box w/side gland $15 order
WA12 12V Wall power adapter (110/220v) $15 order
ACPORTS option Modification for AC inlet and outlet ports $35  
The Sentry  Monitor is designed to offer flexibility in an economical stand alone process measurement control. The Sentry Monitor is not designed to be the sole element for critical, life dependant, or safety applications. These applications should always be designed with redundancy.

EMS  47745 - 193rd St. Toronto SD 57268 USA (605) 794-2072 (P)     (605) 794-2073 (F)  email