Description
Reviews
| Brand | - |
| Category | Machinery & Equipment / Thermo-hygrometers |
| Origin | - |
| Communication Protocol | Modbus RTU |
| Interface Type | RS485 Two-Wire |
| Mounting Style | Wall-Mounted (Type 86 Box) |
| Temperature Range | -20°C to +60°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±0.3°C @ 25°C |
| Humidity Accuracy | ±2% RH @ 25°C |
| Power Supply | 12-24V DC or 12-24V AC |
| Response Time | < 8 seconds (63% step change) |
| Housing Material | Flame-Retardant ABS Plastic |
Anonymous
Mar 27, 2026
Rating: 4/5
Solid performer
Does exactly what it says on the tin. The humidity reading stabilizes quickly after a shower test. Only minor issue is the screw terminals are a bit tight, but that ensures a good connection.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for Home Automation Integration
This sensor integrated seamlessly with my Home Assistant setup via the RS485 USB adapter. The Modbus registers are clearly documented, and the readings are stable. The Type 86 form factor fits perfectly into standard wall boxes.
Anonymous
Mar 11, 2026
Rating: 5/5
Great value for money
I bought three units for different rooms. They all report consistent data when placed side-by-side during testing. The wiring diagram provided was easy to follow for the daisy-chain connection.
Anonymous
Mar 10, 2026
Rating: 5/5
Reliable for greenhouse monitoring
Installed this in my indoor greenhouse controller system. The high-precision claim holds up well against a calibrated reference meter. Very happy with the purchase.
Anonymous
Mar 07, 2026
Rating: 4/5
Accurate but requires configuration
The precision is excellent compared to my old Wi-Fi sensors. However, you need a terminal program to set the baud rate and address if they don't match your default network settings. Once configured, it works flawlessly.
Anonymous
Mar 02, 2026
Rating: 5/5
Industrial grade quality
Using these in a small server room to monitor environmental conditions. The build quality feels robust, and the response time to temperature changes is very quick. Highly recommended for professional use.
Q: Is this sensor suitable for outdoor installation?
A: This specific model is designed for indoor use only. It does not have an IP65 or higher weatherproof rating. For outdoor applications, please look at our weatherproof series with protective housings.
Q: Can I connect multiple sensors to the same RS485 bus?
A: Yes, you can daisy-chain up to 247 devices on a single RS485 bus. Each unit must be assigned a unique Modbus slave address using the configuration software or dip switches if applicable.
Q: Does it support 3.3V logic levels directly?
A: No, the RS485 interface operates at standard industrial voltage levels. If you are connecting to a 3.3V microcontroller like an ESP32, you will need an RS485 transceiver module compatible with 3.3V logic.
Q: What is the default baud rate out of the box?
A: The factory default settings are typically 9600 bps, 8 data bits, no parity, and 1 stop bit (9600, 8, N, 1) with a slave address of 1. Please refer to the specific datasheet included in the package for confirmation.
Q: How do I calibrate the sensor if the reading drifts?
A: The sensor features software calibration offsets. You can write to specific Modbus holding registers to apply temperature and humidity offset values to correct any minor drift without opening the device.
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