Thermistor Sensor

Proven point level detection and overfill prevention

  • Maximum safety with Dynacheck–automatic and continuous Self-Checking® circuitry when used with Scully monitoring systems
  • Field-proven, optic and thermistor level-sensing technology with NPT mounting threads
  • Scully SP-M models are designed for use with Scully ST-15WX Control Monitors
  • Typical uses include storage tanks, double-containment piping trenches, and double-wall storage tank interstitial space monitoring
  • Years of dependable, virtually maintenance-free operation
  • Sensors can be easily extended to desired length at installation site using a 3/8” x 3/8” coupler and the required length of 3/8” NPT pipe.

  • Reliable components with no moving parts
  • Functions within a wide range of temperatures and in a variety of liquid products
  • Sensors can be extended using a 38” x 3/8” coupler and the required length 3/8” NPT pipe.
  • Intrinsic safety approvals SIL 2 Capable with Scully ST-15WX System.

The ordering information below is for FM and FMC approved units. For International ATEX and SIL approved models, see: Storage Tank Sensors_60635_RevE_ATEX.pdf

Thermistor Sensors

Part NumberDescriptionLow TempHigh Temp
 07611SP-M Style Sensors0799607545

Temperature Range:Standard; 0º to +140ºF (-18º to +60ºC)
Low; -40º to +122ºF (-40º to +50ºC)
High; 0º to +200ºF (-18º to +93ºC)
Product Range:Gasoline through #6 oil, and most low viscosity petro-chemical liquids
Level Responsibility:+/- 1⁄16″ (1.6mm)
Size:Refer to diagrams
Response Time:0.5 second maximum, refer to the controller specifications
Exposed Materials:
Sensors:Aluminum body, Boroscilicate glass sensing element
Holders:Aluminum housings
Electrical Connections:Low-temp and Standard Thermistors have two 15’ leads. High-temp Thermistors have three 15’ leads.
Compatible Rack Controls:Scully ST-15 Series and other stationary thermistor control units. Consult technical data sheets #67036, #60629, #60633


Scully Signal