TSM400-4-TH is a digital humidity and temperature sensor that supports MODBUS RTU protocol over the RS-485 interface. Its construction is suitable for wall mounting, making it a preferred choice for monitoring of server rooms, data centers, offices, stores etc. The digital temperature and humidity sensor integrates basic elements as well as signals processing and provides a fully calibrated digital output. This results in superior measurement quality. The sensing elements are factory calibrated and do not require any lifetime recalibration. TSM400-4-TH supports widely used in Building Management Systems (BMS) and Industrial Automation Systems (IAS) Modbus RTU protocol. Each sensor has a unique serial code, which allows multi-sensors support over the same RS-485 bus. The humidity and temperature sensor TSH400-4-TH is housed in a slim plastic enclosure. The bottom part of the enclosure is suitable for installation on standard flush-mounted/cavity wall boxes with a maximum installation opening of 61 mm.

Features:

• LED indicator for status of communication;
• Long-term stability based on digital signal processing;
• 3.0% relative humidity accuracy;
• Changeable communication parameters;
• Non-volatile memory for all settings;
• Firmware update via the interface.

Applications:

• Environmental quality monitoring and assessment for offices;
• Server room and data centers humidity and temperature monitoring;
• Indoor air quality systems;
• Humidity and temperature monitoring in building management systems (BMS).

The following models support TSM400-4-TH

• 4G LTE universal IO module TCG140-4
• Energy monitoring module TCW260
• GSM-GPRS remote IO module TCG140
• Third-party controllers

Warranties - Returns:
Money Return:	Repair - Replacement:
20 days	36 months

Specifications
Physical characteristics
Dimensions	81 x 81 x 30 mm
Weight	66 g
Environmental limits
Operating temperature range	-20 to 60°C
Operating relative humidity range	5 to 95% (non-condensing)
Storage temperature range	-20 to 60°C
Storage relative humidity range	5 to 95% (non-condensing)
Ingress protection	IP20
Power requirements
Operating voltage range (including -15/+20% according to IEC 62368-1)	4.5 to 26 VDC
Current consumption	10 mA@5VDC
Humidity measurements
Accuracy (min)	±3.0 %RH (in 20 to 80 %RH range)
Accuracy (max)	±5.0 %RH (in 5 to 95 %RH range)
Resolution	0.1 %RH
Temperature measurements
Accuracy (min)	±0.4 °C (in -10 to +60°C range)
Accuracy (max)	±0.6 °C (in -20 to +60°C range)
Resolution	0.1 °C
Warranty	-
Warranty period	3 years