The Vaisala HM70 handheld instrument measures humidity and temperature with multiple probe options, data logging, and a multi‑language interface for field…
The HM70 is designed for spot‑check and on‑site calibration of humidity and temperature. It offers a multi‑language UI, graphical trend display, and optional probes for dew‑point, CO₂ and other parameters, making it suitable for harsh environments.
Technical data include a temperature range of –70 °C to +180 °C, humidity range of 0‑100 %RH, and high accuracy. The unit records up to 2700 data points and transfers them via USB to a PC running MI70 Link software. Accessories such as protective cases and extension cables are available. This manual is written in Chinese.
| Humidity measurement range | 0‑100 %RH |
|---|---|
| Humidity accuracy (0‑90 %RH) | ±1 %RH at +15 °C … +25 °C |
| Temperature accuracy at +20 °C | ±0.2 °C |
| Power source | Rechargeable NiMH battery pack or 4 AA alkaline cells |
| Data logging capacity | 2700 real‑time data points |
| Display IP rating | IP54 |
| Probe IP rating | IP65 |
Up to two probes can be connected, including humidity, dew‑point or CO₂ probes.
The device can record up to 2700 real‑time data points.
It can be powered by a rechargeable NiMH battery pack or by four AA alkaline batteries.