Flat surface temperature sensors for remote monitoring.


  • 4-20 mA output
  • Marine grade cable with strain relief
  • Fully encapsulated electronics

Surface Temperature Sensors Product Description

The Global Water Surface Temperature Sensors are high quality, rugged instruments with a precision RTD calibrated to US National Standards. The surface temperature sensor’s output is 4-20 mA with a two wire configuration. Each of the surface temperature sensors is mounted on 25 ft of marine grade cable, with lengths up to 500 ft available upon request. The surface temperature sensor’s electronics are completely encapsulated in marine grade epoxy within an ABS plastic housing.

Surface Temperature Sensor Applications
The surface temperature sensors are well suited for many applications including, pipe temperature monitoring, solar panel temperature, water tanks, control panels, battery monitoring, and many others.

What is Temperature and How is it Affected?
Temperature is typically measured in degrees Celsius or Fahrenheit.  To accurately measure temperature the surface temperature sensor should be mounted in direct contact with the surface to be measured.  Using the surface temperature sensor’s included silicone heat transfer compound will ensure that temperature transfer from the monitored surface to the sensor’s heatsink will be efficient, minimizing the impact of ambient temperature on the measurement.  Dirt or other insulators, like paper labels, can cause errors in the surface temperature sensor’s reading or cause slower response times.

Surface Temperature Sensors Specifications

Surface Temperature Sensor
Sensor Type: 100ohm Platinum Class A RTD
Output: 4-20 mA
Range: -58°F to +185°F (-50°C to +85°C)
Accuracy: ±0.5°F (±0.25°C)
Operating Voltage: 10-36 VDC
Current Draw: Same as sensor output current
Warm-Up Time: 3 seconds minimum
Adhesive Type: 3M #4910 Acrylic
Storage Temp: -67°F to +195°F (-55°C to +90°C)
Sensing Surface: 0.75×1.5 inch (19×38 mm) Aluminum
Housing: 2.0×1.1×3.8 inch (5×2.8×9.7 cm)(WxHxL) ABS
Weight: 13oz (368g) with 25 ft of cable

Surface Temperature Sensors Options

WE710 Surface Temperature Sensors (PN# EFA000)
Includes 25 ft of cable.

WQEXC Extra Cable (PN# DH0000)
Standard Surface Temperature Sensors include 25 ft of cable, but can be purchased with up to 500 ft of cable.


WE700 Air Temperature Sensor (PN# EF0000)

EZ100 Temperature or Humidity Transmitter Display
LCD readout display for both portable use and permanent installations. (PN# GA0000)

GL500 Surface Temperature Sensor Recorder
Surface temperature recorder for sensor datalogging.  Includes Global Logger Software.  With weather proof enclosure and 12V battery.

PC320 Surface Temperature Meter and Alarm


TLC 730 Handheld Infrared Thermometer (PN# 1340-5730)

TFI 550 Non-contact Thermometer (PN# 1340-1786)

TFH 610 Handheld Hygrothermometer (PN# 1340-5610)

RH300 Portable Psychrometer (PN# DK1300)

RH305 Digital Psychrometer Kit
Includes RH300 psychrometer, external temperature probe, 33% and 75% calibration bottles, 2 AAA batteries and carrying case. (PN# DK1305)

EBI-20-T1-Set Temperature Datalogger Kit
Includes EBI-20-T datalogger, Winlog.basic software, EBI-20 interface, and USB cable. (PN# 1601-0046)

EBI 100-T101 Temperature Data Logger (PN# 1340-6501)

RH520A Paperless Humidity/Temperature Chart Recorder (PN# EEA000)

WE Weather Sensors

WE800 Weather Station Data Logger (PN# EH0000)
This system is designed for remote monitoring sites.

WE900 4-20mA Weather Station (PN# ER0000)
This system is designed for integration with existing SCADA, PLC, or RTU systems.