Condition: Used

VAISALA HMP155 Humidity and Temperature Probe with HMP155H Power Box DCP24-SAN, long connection cable, power cable, and signal wiring.

The probe and power box show only minor signs of previous use and storage. Overall, they are in clean condition with minimal wear. Please check all photos carefully for the detailed condition.

The power box was connected to AC 100V and powered on successfully. The green power indicator illuminated properly.

The included power box is configured for AC 100V (Japan specification). Buyers in countries with a different mains voltage must use a suitable step-down transformer. Please confirm the input voltage and compatibility with your local power supply before purchase.

The HMP155 probe was connected to the included power box during testing.

The analog outputs for both humidity and temperature were checked using a digital multimeter.

The humidity output measured approximately 2.7 V under the test environment. When the humidity around the probe was increased, the output rose to approximately 2.9 V and then gradually decreased.

The temperature output measured approximately 3.36 V. When the probe was warmed by hand, the output gradually increased.

These tests confirmed that both the humidity and temperature analog outputs respond to environmental changes. However, measurement accuracy and calibration have not been verified.

No long-term operation test or testing with dedicated Vaisala calibration equipment was performed.

The exposed signal wires include connections labeled for humidity, temperature, and common negative. Please confirm compatibility with your own equipment before purchase.

Only the items shown in the photos are included.

・Power box powers on successfully.

・Green power indicator illuminates.

・HMP155 probe was connected during testing.

・Humidity analog output measured approximately 2.7 V.

・Humidity output increased to approximately 2.9 V when exposed to higher humidity, then gradually decreased.

・Temperature analog output measured approximately 3.36 V.

・Temperature output gradually increased when the probe was warmed by hand.

・Humidity and temperature output response confirmed.

・Measurement accuracy and calibration were not verified.

・VAISALA HMP155 Humidity and Temperature Probe

・HMP155H Power Box DCP24-SAN

・Long connection cable

・AC power cable

・Signal wiring shown in the photos

This is a used professional measuring instrument. The output response was confirmed by simple testing only. Accuracy, calibration status, and suitability for any specific application are not guaranteed.

Please check the model, connectors, wiring, and compatibility carefully before purchase.