The AH2M2/AHT2M2 temperature and humidity measurement module is a humidity-sensitive capacitance type temperature and humidity measurement module produced by Guangzhou Auson Electronics Co., Ltd. This module is suitable for industries such as electronics, pharmaceuticals, food, storage, tobacco, textiles, and meteorology. It features full-range temperature compensation and full-range single-chip calibration output. The temperature detection range is 0-80℃ and the humidity detection range is 0-100%RH. The humidity detection accuracy is ±3%RH and the temperature detection accuracy is ±0.5℃.
This manual describes the AH2M2/AHT2M2 temperature‑humidity measurement module produced by Aosong Electronics. It outlines the applicable industries such as electronics, pharmaceuticals, grain storage, tobacco, textiles, and meteorology, and details the physical shape and mounting options (bracket, wall, or flange).
Key electrical parameters are listed, including a supply voltage of 4.5‑6 V DC, current consumption of about 2 mA (max 5 mA), and measurement ranges of –40 °C to 80 °C for temperature and 0 %‑100 % RH for humidity. The document also specifies standard test conditions, stability tests, and environmental resistance (impact, vibration, heat, cold, moisture). Wiring details for the four‑core shielded cable are provided. This manual is written in Chinese.
| Supply voltage (Vin) | DC 4.5‑6 V |
|---|---|
| Current consumption | ≈2 mA (max 5 mA) |
| Operating temperature range | -40 °C ~ 80 °C |
| Temperature measurement range | 0 °C ~ 80 °C |
| Humidity measurement range | 0 % ~ 100 % RH |
| Humidity detection range | 0 % ~ 100 % RH |
| Storage temperature range | 0 °C ~ 80 °C |
| Storage humidity limit | ≤95 % RH (non‑condensing) |
| Humidity accuracy | ±3 % RH (at 25 °C, 60 % RH) |
| Temperature accuracy | ±0.5 °C (at 25 °C) |
| Output impedance | ≤5 kΩ |
| Standard temperature output voltage (no calibration) | Dependent on Vin 4.5‑6 V |
It operates from a DC supply of 4.5 to 6 V.
The humidity accuracy is ±3 % RH under the condition of 25 °C and 60 % RH.
It can be mounted on a bracket or wall using a flange or wall‑mount installation method.
Standard tests are performed at an ambient temperature of 25 °C with a supply voltage of 5.0 V DC as reference.