Indoor Temperature & Humidity Transmitter, TSR23

The Taishio Indoor Temperature & Humidity Transmitter, TSR23  is a reliable environmental sensor designed for accurate monitoring and control of indoor climate conditions. Equipped with high‑quality MEMS temperature and humidity sensors, the TSR23 delivers stable, real‑time measurements across a broad range of applications — from HVAC and building management to data centers, museums, supermarkets, and public indoor spaces.

This versatile transmitter supports 0–10 V, 4–20 mA analog outputs, and RS‑485 digital communication (Modbus RTU), making it easy to integrate with modern control systems, automation platforms, and data logging software. The built‑in LCD display provides on‑site visibility of temperature and humidity values, while RS‑485 connectivity enables remote monitoring and data transfer to PCs using compatible software.

Designed for indoor wall‑mount installation, the TSR23 features a compact housing with IP20 protection and built‑in electrical safeguards including polarity reversal and short‑circuit protection. With a measuring range of 0–50°C and 0–100 %RH (non‑condensing), and accuracy of approximately ±0.3 °C temperature and ±2.5 %RH humidity, this transmitter offers dependable performance for comfort control, energy efficiency, and environmental tracking.

Ideal for use in offices, workplaces, warehouses, laboratories, and commercial buildings, the TSR23 helps maintain optimal indoor conditions and supports smart building automation systems with flexible output options and robust connectivity.

Features

• Measuring temperature and humidity
• Analog outputs and RS-485
• Optional analogue output+RS-485
• Quick easy installation and maintenance due to well designed
• Cost-efficient and reliable
• Data can be logged and transferred to PC via RS-485 function link free software

Applications

Monitoring indoor environments HVAC / Air conditioning / Museums / Testing environments work places / Supermarkets / Data centers / Production wharehouses / Indoor public places to regulate the ventilation system to save energy