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Supervisory Devices



Product Image Item Name- Price

USP F20 Temperature Supervisory Switch

USP F20 Temperature Supervisory Switch

Temperature Supervisory Switch Fixed Temperature Type Closed Circuit Detector Opens at 40 F Variance of +/- 5 F Contact Rating 24VDC-120mA Automatic Reset UL LIsted and CA State Fire Marshall Approved
$36.95

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USP PLS Power Loss Sensor

USP PLS Power Loss Sensor

Power Loss Sensor Special Order Detects loss of Power (110 VAC) Dry Contact Output Automatic Reset SPDT Power Restore Sensor Available
$46.95

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USP R64 End Of Line Relay

USP R64 End Of Line Relay

End Of Line Relay Adaptable to any standard 4 or 6 wire systemProvides 12-24 VDC E.O.L. Power SupervisionUL listed and CA State Fire Marshall Approved.Size 2-3/8” x 2-1/4” x1”
$31.95

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USP RTS Remote Temperture Sensor

USP RTS Remote Temperture Sensor

Remote Temperature Sensor Special Order 20-90 Degrees
$269.95

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USP TLMR Telephone Line Monitoring Relay

USP TLMR Telephone Line Monitoring Relay

Telephone Line Monitoring Relay Special Order Notifies of disconnection after 17 seconds delay, due to cut telephone lines or excessive drops in voltage Normally closed or normally open output can be interfaced with any alarm panel or device that has normally open inputs. Helps protect your environment by monitoring the phone line
$59.95

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USP WLS Water Detector

USP WLS Water Detector

              Water Detector     NO/NC Capability 1/2” x 1/2" x 2-1/2" Activates with presence or absence of water Detects water leaks before becoming a major problem Detects low water in tanks Easily installs to Voice Dialers just attach wires
$36.95

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