RS485 output humidity and temperature transmitter with LCD display

Applications & Features

•   Humidity and temperature transmitters H2N (duct), H3N (outside) and H4N (remote) are designed for environment monitoring and controlling in industrial and commercial buildings.
• High performance digital sensors and circuits, ensure accurate measurement and temperature compensation
• Digital technology applied, multiple outputs optional, over voltage and reverse polarity protection, high reliability and anti-interference capability
• LCD display temperature and humidity alternatively
• LCD & function keys can set parameters and calibrate output, so the product can be a stand alone controller
  Good long term stability and reliability
• 100% field changeable sensor without re-calibration
• Fast response
• High protection rate up to IP65

Specifications
Relative Humidity
Sensor: Digital polymer
Range: 0~100%RH
Output: see models
Accuracy: 2%, 3%, (25°C, 20~80%RH)
Hysteresis: <±1%RH
Response time: <10s (25°C, in slow air)
Drift: <±0.5%RH / year
Temperature
Sensor: Digital temperature sensor or RTD/thermistor
Range: 0~50°C, 0~100°C, -40~60°C, or others
Output: see models
Accuracy: transmitter: <±0.4°C (0.3°C )@ 5~60°C
PT100/1000: <±0.2°C@25°C
Others: ±0.4°C@25°C
Power: Voltage 15~28VAC/15~36VDC
Current 7.5~36VDC
Output Load: ≤500Ω (current), ≥2KΩ (voltage)
Relay output: 2×SPST, 3A/30VDC, 3A/250VAC
Display and keys: 4 digits LCD, with unit indication, backlight (4-20mA N/A), 3 touch keys, see more details on LCD & Keys operation
Work Temp.: -30~85°C (LCD: 0~50°C), 5~95%RH (Non condensing)
Housing: Fireproof ABS housing, UHMW-PE filter (H2/H4N), SS probe and sintered filter (H3N)
Protection: IP65
Approval: CE

Models