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SF-110-SS Radiation Frost Detector

Updated:2025-03-13

Brand:APOGEE
Model: SF-110-SS
Description: The SF-110-SS has an unamplified voltage output and high-quality cable termination with pre tinned pigtail leads for easy connection to data recorders and controllers. The detector contains a precisio
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Product Details

Overview of SF-110-SS Radiation Frost Detector：

User's Manual

The SF-110-SS has an un-amplified voltage output and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. The detector contains a precision thermistor that mimics a leaf. The SF-110-SS provides close approximations of leaf temperatures and has a temperature measurement range of -50 to 70 ℃. Typical applications include leaf temperature estimates in cropped fields, orchards, and vineyards. Leaf temperatures returned by the detector can then be used to alert growers to the potential of frost damage to crops. Sensor includes IP68 marine-grade stainless-steel cable connector 30 cm from head to simplify sensor removal and replacement for maintenance and recalibration. While most users choose to mount the SF-110-SS to a branch or stick using zip ties, the AM-260 mounting fixture can be used as a more permanent mounting option.

Drawing of SF-110-SS detector:

Specification of SF-110-SS detector:

Measurement Range	-50 to 70 ℃
Measurement Uncertainty	0.1 ℃ (from 0 to 70 ℃), 0.2 ℃ (from -25 to 0 ℃), 0.4 ℃ (from -50 to -25 ℃)
Measurement Repeatability	Less than 0.05 ℃
Non-stability (Long-term Drift)	Less than 0.02 ℃ per year (when used in non-condensing environments where the annual average temperature is less than 30 ℃; continuously high temperatures or continuously humid environments increase drift rate)
Equilibration Time	10 s
Self-Heating	Less than 0.01 ℃ (typical, assuming pulsed excitation of 2.5 V DC), 0.08 ℃ at 5 ℃ (maximum, assuming continuous input excitation of 2.5 V DC)
Operating Environment	-50 to 70 ℃, 0 to 100 % relative humidity
Input Voltage Requirement	2.5 V DC excitation (recommended)
Output Voltage Range	2.5 V DC
Dimensions	17.5 cm length, 2.2 cm pipe diameter, 6.0 cm disk diameter
Mass	75 g
Cable	5 m of three conductor, shielded, twisted-pair wire; cable is available in 5, 10, and 20 m lengths (custom lengths available by request); TPR jacket (high water resistance, high UV stability, flexibility in cold conditions); pigtail lead wires
Warranty	4 years against defects in materials and workmanship
Manufactured	Made in the USA