When you need dependable humidity and temperature data at the measuring point, the HP3517 combined probes keep installation clean and measurements consistent. They connect to HD35 data loggers as a cabled temperature and relative humidity probe (...TC models), helping you build flexible monitoring points across typical logging applications where stable, comparable readings matter.
Humidity measurement covers the full 0–100% RH range, with accuracy specified as ±1.8% RH (0...85% RH) and ±2.5% RH (85...100% RH) at T = 15...35 °C, and ±(2 + 1.5% measure) % at the remaining temperature range. For temperature, HP3517WTC... versions use an NTC10KΩ sensor with a measuring range of -40...+105 °C, while HP3517ETC... versions use a Pt100 1/3 DIN sensor with a measuring range of -40...+150 °C.
Connection is via a female M12 connector: 4-pole for HP3517WTC... or 8-pole for HP3517ETC... variants. When replacing an HP3517... probe on compatible HD35 loggers, recalibration of the instrument is required in line with the new probe.
Integrates a relative humidity sensor with a temperature sensor in one probe assembly
Specifies accuracy as ±1.8% RH (0...85% RH) and ±2.5% RH (85...00% RH) at 15...35 °C
Uses NTC10KΩ for HP3517WTC... or Pt100 1/3 DIN for HP3517ETC... variants
Provides a female M12 connector with 4 poles (WTC) or 8 poles (ETC) depending on probe type
Designed for HD35 data loggers that use HP3517... combined probes on cabled probe models (...TC)
Probe replacement on compatible instruments requires instrument recalibration aligned to the new probe
Code: HP3517 [1] [2] [3]
Example: HP3517ETC3.10
[1] Temperature sensor
W = -40…+105 °C / NTC10KΩ
E = -40…+150 °C / Pt100
[2] Stem
TC1 = plastic material, L = 135 mm
TC2 = AISI 304, L = 150 mm
TC3 = plastic material, L = 335 mm
[3] Cable length
.2 = 2 m
.5 = 5 m
.10 = 10 m
