Delavan Sonac 220 Model 11L 3742-0816 Proximity Sensor  50' 3-wire Cable (B137)
Item is new and in good condition, w/ black mounting fitting

ParameterValue / DescriptionNotes / Source
Model / FamilySONAC 11L (used in SONAC / 220 systems)
Operating PrincipleUltrasonic / acoustic / proximity-level detection


Typical Sensing RangeUp to ~10 ft (~3 m)
Maximum Sound Path~10 ft
Minimum Distance~2 in (≈ 50 mm)
Temperature Rating / LimitsStandard up to ~220 °F (≈ 104 °C); high-temperature versions up to ~400 °F (≈ 205 °C)
Sensor Face Material316 Stainless Steel 
Cable / Wiring50 ft (PVC cable) is typical for SONAC 11L listings 
Discontinued / StatusLikely discontinued
Weight / MechanicalIndividual sensor ~1 lb
Mount / TerminationCable termination, often with molded cables


For more pictures or any questions, please contact seller.

J.N.B.