Campbell Scientific, Inc. offers a wide range of surface temperature sensors, including: SI-111-PW infrared radiometers (for pre-wired enclosures), SI-111 infrared radiometers, CWS220 900-MHz wireless infrared radiometers, CS220-L surface-mount (Type-E) thermocouple sensors, and 110PV-L surface mount thermistors. CWS220 radiometers have operating temperatures ranging from -25 to +50°C, output signals ranging from 0 to 2500 mV, and wavelength ranges from 8 to 14 μm. These sensors have applications for water, snow, soil, plant, and road surface temperature measurements.

Quality Thermistor, Inc. (QT) offers a variety of surface temperature sensor configurations, including: QT06008, QT06007D, QT06007C, QT06007B, and QT06006.  QT06008 NTC/commercial/surface temperature probes have vinyl insulated ring lugs, A/B/C/D lead options, and a tinned copper construction. QT also offers gas/air temperature probes and liquid temperature probes.

Grainger Industrial Supply offers a variety of surface temperature sensor configurations, including: GE Hygromaster sensors, DWYER WP RTDs, DWYER Ni1000 RTDs, DWYER Balco1000 RTDs, and DWYER GP RTDs. DWYER Ni1000 surface temperature RTD sensors have the following features: temperatures ranging from -40 to 250°F, 6 foot cable lengths, 304 stainless steel probe materials, air/liquid applications, etc. Grainger also offers pH twist-lock and ORP twist-lock electrodes.

Omega Engineering, Inc. offers a wide range of surface temperature sensors, including: small surface thermistors, precision thermistors, linear banjo thermistors, flexible molded RTDs, and attachable surface linear immersion thermistors. Flexible molded RTD surface sensors have the following features: temperature ranges from -50 to 200°C, multiple mounting options, a 4-wire configuration, PFA insulated cables, stripped leads, and Class "B" DIN platinum elements.

Honeywell Sensing and Control offers HRTS Series, 6655 Series, and 500 Series surface temperature sensors. HRTS Series temperature sensors have temperature ranges from -320 to 500°F, supply currents ranging from 1 to 2 mA, and they come in 100 Ohm platinum RTD sensor types. These sensors are constructed from ceramic, fiberglass, epoxy, Teflon, nickel-coated copper, and alumina materials. Applications include process control, temperature compensation, semiconductor protection, electronic assemblies, OEM assemblies, HVAC, etc.

RdF Corporation offers surface temperature sensors in a variety of configurations, including: immersible surface platinum RTDs, miniature flexible platinum RTDs, Strapon TC sensors, heavy duty surface mounts, flexible foil TC, flexible Stikon TC, etc. Heavy duty surface mount RTD sensors have temperature ranges from -320 to 900°F, a 100 ohm resistance, and #22 AWG stranded/Teflon/fiberglass insulation. Applications include plants, refineries, flue stacks, boiler tubes, etc.

Spectrum Sensors & Controls, Inc. offers RT24 surface temperature sensors. These sensors have operating temperature ranges from -40 to 150°C, 2000 Volt isolations, #6 stud hole sizes, and excellent thermal tracking capabilities.

Emerson Process Management offers Rosemount pipe clamp sensors. These sensors come in pipe sizes ranging from 1/2" to 48", they have temperature measurement ranges from -166 to 842°F, and a 3G vibration resistance. These sensors are available in both remote and direct mount transmitters.

Watlow offers surface temperature thermocouples in a variety of configurations, including: MICROCOIL, high temperature/platinum, base metal, mineral insulated, tube/wire applications, radio frequency thermocouples, etc. Tube/wire application thermocouples have lead lengths ranging from 6" to 360", sheath lengths up to 12", temperature allowances up to 900°F, and outside diameters ranging from 0.125 to 0.25".

Smart Sensors, Inc. offers a variety of specialty sensor types, including: smart sanitary, handheld, heavy duty industrial magnet, oil seal, tubeskin, washer, pipe clamp, and electric trace. Type 1312/1314 oil seal sensors have cast aluminum heads, 3/16" OD sheaths, temperatures up to 400°F, and pressures up to 50 PSI.

Vaisala, Inc. offers DST111 remote surface temperature sensors. These sensors have operating temperatures ranging from -40 to +60°C, a 33 mW power consumption, and a power supply ranging from 9 to 30 VDC. Additional features include remote temperature measurement, weather-proof/durable design, stable measurement results, no internal moving parts, etc.

Vernier Software & Technology offers surface temperature sensors where low thermal mass or flexibility is required. These sensors have temperature ranges from -13 to 257°F, accuracies ranging from ±0.2 to ±0.5°C, 20 to 50 second response times, and probe lengths up to 15.5 cm.