1-Wire Humidity and Temperature Sensor TSH202

TSH202 is a 1-Wire humidity and temperature sensor, offering a cost-effective solution for monitoring these parameters. It communicates via a 1-Wire bus, with each sensor possessing a distinct 64-bit serial code, enabling multiple sensors to be connected on the same bus.

TSH202 integrates essential components, including signal processing, to deliver a fully calibrated digital output. The humidity measurement relies on a unique capacitive element, while temperature is sensed through a band gap sensor. Both sensors are seamlessly linked to a 12-bit analog-to-digital converter, ensuring exceptional signal quality and rapid response times.

Key Specifications:

• Impressive 3.0% relative humidity accuracy.
• 12-bit resolution for humidity measurements.
• 14-bit resolution for temperature measurements.
• Provides fully calibrated digital output.
• Demonstrates exceptional long-term stability.
• Each sensor is uniquely identified with a 64-bit serial number, facilitating multi-sensor systems.

Use Cases:

• Monitoring server rooms and data centers.
• Utilization in building management systems for humidity and temperature monitoring.
• Environmental quality assessment and monitoring.
• Ideal for humidity and temperature monitoring in diverse settings like mobile operator facilities, vineyards, greenhouses, and more.

The sensor can be used with

Ethernet IO module TCW241
Ethernet data logger TCW220
Remote IO module TCW122B-CM
IP watchdog monitoring module TCW122B-WD
4G LTE wireless IO module TCG120-4

Parameter	Value	Units	Remark	Value	Units	Remark
Operating Range	10 to 90*	%RH	non-condensing	–20 to +60*	°C
Tolerance typ.	±3.0	%RH	20 to 80 %RH	±0.4	°C	10 to +60°C
Tolerance max.	±5.0	%RH	10 to 90 %RH	±1.0	°C	-20 to +60°C
Long term drift typ.	±0.25**	%RH/year	20 to 80 %RH	±0.05**	°C/year	-10 to +60°C
Resolution	0.1	%RH		0.1	°C
Power supply/consumption	4.0 to 5.5	VDC		5	mA
Ingress protection	IP00
Dimensions	45 x 16 x 10	mm
Communication	1-Wire
Cable length	1	m