• Output: I²C
• Accuracy:
  • HT-301 RHT-H30: Humidity ±2.0%RH (10~90%RH), Temperature ±0.2℃ (0~65℃)
  • HT-301 RHT-H31: Humidity ±2.0%RH (0~100%RH), Temperature ±0.2℃ (0~90℃)
  • HT-301 RHT-H35: Humidity ±1.5%RH (0~80%RH), Temperature ±0.1℃ (20~60℃)
  • HT-301 RHT-H40: Humidity ±1.8%RH (0~100%RH), Temperature ±0.2℃ (0~65℃)
  • HT-301 RHT-H85: Humidity ±1.5%RH (0~80%RH), Temperature ±0.1℃ (20~50℃)
• Measurement Range: Humidity 0~100%RH, Temperature -40~125℃
• Power: DC4.5V~12V
• Cable Gland: Ultra-long Hard-body Rod or OEM

The HENGKO HT-301 series is a handheld temperature and humidity sensor with a digital display. It outputs a calibrated digital signal in standard I²C format, ensuring high reliability and excellent long-term stability. The sensor uses advanced temperature and humidity sensors as core components.

• High-precision RHT series chips
• Sintered stainless steel sensor housing for high air permeability and fast gas humidity flow
• Customizable ultra-long hard-body rod probe (500mm to 15000mm)
• Firm probes with low resistance, suitable for insertion into high grain piles

• Fully calibrated and linearized with compensated digital outputs
• I²C interface with up to 1MHz communication speed and two selectable addresses
• Quick and reliable air temperature and humidity measurement
• Ultra-small diameter (8mm) probe
• IP66 waterproof and dustproof with strong pressure resistance
• Accurate and stable output signal with up to 400 meters transmission distance
• Standard 4-pin connector
• Low noise signal

Ideal for environmental measurement in large-scale granary grain piles, tobacco piles, medicinal materials piles, raw material piles, and large-capacity storage tanks. The long rod probe can be equipped with multiple 485 or I²C probes at different heights to measure and monitor temperature and humidity, reducing the need for multiple measurement sets and equipment costs.