Choosing a temperature transmitter with a display helps simplify monitoring of environmental conditions across greenhouses, warehouses, and industrial facilities. This guide highlights five reliable options, focusing on accuracy, durability, and ease of integration with existing systems. Each product features a built-in display, multiple output options, and rugged designs suitable for challenging environments. Use the quick-reference table below to compare core specs at a glance.
| Product | Brand | Key Features |
|---|---|---|
| Tzone 4-20mA Temperature Humidity Transmitter | Tzone | -40 to 125°C, 5-95% RH, 12-30V DC, 4-20mA output, wall-mounted |
| Pssopp Temperature Sensor with LCD | Pssopp | Clear LCD, 10-30V input, 4-20mA or other outputs, versatile indoor/outdoor use |
| Vaisala HMW-88D with Display | Vaisala | Industrial-grade, IP-65, Finnish origin, rugged enclosure |
| Veinasa HTW-GS1-RS485-D | Veinasa | RS485/4-20mA/0-5V/0-10V outputs, -20 to 80°C |
| Rotronic HYGROFLEX HF132(WB1XD1XX) | Ace Instruments | Wall-mount, -20 to 50°C, 0-100% RH, multiple outputs, blue backlit LCD |
Tzone 4-20mA Temperature Humidity Transmitter
The Tzone transmitter integrates a 4-20 mA output with a robust wall-mounted design suitable for greenhouse environments. It uses an SHT30 sensor within a CMOS framework to deliver stable readings across broad temperature (-40 °C to 125 °C) and humidity (5% to 95% RH) ranges. The instrument supports monitoring multiple sensors in parallel, which can streamline data collection in larger facilities. A three-wire configuration reduces installation complexity and weight, while a DC power supply from 12 to 30 V supports varied setups. It is designed to withstand dust, rain, and snow for outdoor or semi-outdoor use.
Pssopp Temperature Sensor With LCD
This Pssopp model emphasizes a high-contrast LCD display for immediate visibility of temperature and humidity values. It features a wide input range of 10-30V and is designed for both indoor and industrial environments. The unit supports flexible installation scenarios—from greenhouses to storage facilities—providing accurate, at-a-glance readings that reduce monitoring time. Its robust analog circuitry enhances measurement stability, assisting in maintaining consistent environmental conditions across varying conditions and power fluctuations.
Vaisala HMW-88D Humidity/Temperature Transmitter
The Vaisala HMW-88D is a proven, wall-mounted transmitter designed for demanding environments. Made in Finland, this unit carries Vaisala’s reputation for reliability and long-term stability. The product is compact and rugged with IP-65 protection during standard industrial deployments, suitable for HVAC, process control, and BMS integrations. While the listing emphasizes durability, it also supports display visibility for quick readings on site, making it a strong option for mission-critical monitoring needs.
Veinasa HTW-GS1-RS485-D
Veinasa’s RS485-based transmitter provides versatile signal outputs including RS485, 0-5V, 0-10V, and 4-20mA. With a measuring range of -20 to 80°C and a power supply of +13.5 to 24V DC, this device is suitable for control systems and building automation. The RS485 interface enables easy integration into existing industrial networks, while the built-in display allows on-site verification of readings without external tools.
Rotronic HYGROFLEX HF132(WB1XD1XX)
The Rotronic HF132(WB1XD1XX) is a wall-mount transmitter with a blue backlit LCD that clearly displays both temperature and humidity. Its range covers -20 °C to 50 °C and 0-100% RH (non-condensing), with multiple outputs including 4-20 mA and 0-1/5/10 VDC to fit various control systems. Long-term stability is emphasized, and the device supports essential HVAC and clean-room monitoring demands, making it a solid choice for precise environmental control in critical facilities.
Buying Guide — Key Considerations for Temperature Transmitters With Display
- Accuracy and stability: Look for sensors with ±0.5°C temperature accuracy and humidity ranges that suit your application. Consider devices with proven long-term drift performance for stable readings over time.
- Output options: Ensure the transmitter provides the required analog or digital outputs (4-20 mA, 0-5 V, 0-10 V, RS485, etc.) and that it integrates smoothly with your control system or BMS.
- Power and installation: Check voltage input ranges and mounting methods. Wall-mounted, compact enclosures with simple wiring reduce installation time and space requirements.
- Display readability: A clear, backlit LCD or LED display enables on-site verification without external instruments. Choose a display that is legible in your environment (bright light, low light).
- Environmental ruggedness: For greenhouses, outdoor spaces, or dusty environments, select models with appropriate IP ratings and weather resistance (dustproof, rainproof, snowproof).
- Network compatibility: If RS485 or Modbus is needed, confirm protocol support and bus topology. Consider devices that support multiple sensors for scalable monitoring systems.
- Maintenance and calibration: Favor devices with easy calibration access or factory calibration options to maintain accuracy over time.
- Cost of ownership: Evaluate total cost of ownership, including sensors, cables, power supplies, and any required accessories for deployment at scale.
In summary, these five models provide a range of display-equipped temperature transmitters suitable for residential, commercial, and industrial environments. They balance display visibility, measurement accuracy, and integration flexibility to support proactive climate management across diverse facilities.