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Item Code: ETI24220

Description:  HSC-4 Pavement Sensor 1 hr hold-on timer

ETI (Environmental Technology Inc.) HSC-4 Sensor (requires 23832 Pavement Sensor Housing) - Automatic, Pavement-Mounted for snow and ice melting at pavement temperatures below 38F while moisture in any form is present. (needs external 24vac power supply)


Typically in stock at vendor warehouse, call for delivery time

Condition:  New in box



Click Images to Enlarge



Voltage: 24 VAC
Output Relay: 1 Amp at 24VAC
Applications: Snow Melting Systems
Manufacturer: Environmental Technology Inc
Included: Controller

Features of ETI HSC-4 Pavement Mounted Snow and Ice Melting Control

The ETI HSC-4 Pavement Mounted Snow and Ice Melting Controller is designed to energize snow and ice melting heaters based on the pavement conditions. The controller will turn on deicing heaters when the pavement temperature falls below 38F (3.3C) while water, snow, or ice is present.

NEC Class 2 device operating from customer supplied 24VAC

Form A low voltage 1 amp relay contact output for interfacing with external relays, valves, pumps, and energy management systems

1 hour hold-on timer

Reliable snow melting

Minimum energy costs

Control based upon pavement conditions

Rugged construction

New mounting system provides accurate alignment with the pavement surface

The location of the sensor should be 1). Centered between runs of hydronic tubing or heater Cable and 2). Exposed to precipitation and pedestrian or vehicular traffic.

Install the sensor housing on a firm, smooth surface such as a precast patio block or similar masonry module. Care should be exercised in adjusting the final grade and level of the sensor to ensure that the sensor surface will be flush with the finished pavement, and that the adjacent pavement be either level or slightly crowned. A sensor submerged in puddled water will not function properly.

Customers Who Purchased This Item Also Purchased:
Item CodeDescriptionVendorQuantity
23832 Pavement Sensor Housing
ETI (Environmental Technology Inc.) Housing that is Required for use with HSC-4 or SIT-6E Sensor