Temperature and humidity sensors

Delta Ohm has released a series of analog and digital temperature and humidity transmitters. The HD9817 series feature compact self-contained transmitters with analog (0-1 V) and digital (RS232 and USB) outputs.

Other features include a stainless steel IP65 body (14 mm diameter by 133 mm long), an accuracy of ±2% Rh and ±0.2°C with a maximum working temperature of 80°C.

Digital versions are powered directly from the PC while the analog version requires a 5-30 VDC supply.

A feature of these transmitters is the humidity software calibration procedure (included with each transmitter) for periodic recalibration when required with a USB calibration interface for the analog version.

These units are suited to HVAC, environmental monitoring and OEM type applications, and are available with a traceable calibration certificate.