Control Company 4380 Radio-Signal Remote Humidity Meter/Thermometer, NIST Certificate Included

DISCONTINUED ITEM-Recommended Replacement: Extech RH200W Multi-Channel Wireless Hygro-Thermometer

Read humidity and temperature from 100 feet away

The 4380 Remote Humidity Meter/Thermometer receives a radio signal from the remote wireless sensors. It eliminates the cable. Place the main unit at your desk or bench. Place the remote sensor module in labs, ducts, and storage facilities— even outdoors. Remote sensor sends humidity and temperature signals to the main digital display. Transmits on a frequency of 433 MHz. Range is 65 to 100 feet, depending on the location or number of walls. Relative humidity range is 25 to 90% with a resolution of 1% and an accuracy of ±2%RH mid-range to ±4%RH elsewhere. Switchable thermometer range is –4 to 140°F and –20 to 60°C, with a resolution of 0.1° and an accuracy of ±1°C.

Traceable to NIST for accuracy

Relative humidity range is 25 to 90% with a resolution of 1% and an accuracy of ±2% RH mid-range to ±4% RH elsewhere. Switchable thermometer range is –4 to 140°F and –20 to 60°C, with a resolution of 0.1° and an accuracy of ±1°C. To assure accuracy an individually serial-numbered Traceable® Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology).

Read up to three modules (One remote sensor already included with order of display)

Main unit can receive and display data from up to three different remote sensor modules. Data is transmitted every 30 seconds. Display’s trend indicators show if humidity and temperature are rising or falling. Minimum and maximum memory display allows monitoring of conditions over short or long periods, including overnight or weekends. An alarm may be set in increments of 1%RH and 1°. The alarm sounds when the humidity or temperature exceeds the high and low set points. Furnished with a flip-open stand, wall brackets, and Velcro® to attach to any surface

• Wireless readings
• Min/max readings
• High/low alarms
• Relative humidity range: 25 to 90%, with a resolution of 1% and an accuracy of ±2%RH mid-range to ±4%RH elsewhere
• Switchable thermometer range: –4 to 140°F and –20 to 60°C, with a resolution of 0.1° and an accuracy of ±1°C.
• Data transmitted every 30 seconds
• Alarm function may be set in increments of 1%RH and 1°
• Jumbo digits (1-3/8-inches-high) may be read from 25 feet
• Complete with: Remote sensor module, internal humidity sensor, internal temperature sensor, alkaline batteries
• NIST Calibration Certificate included

• Laboratory
• Monitor crawl space
• Remote monitoring

• Transmits on a frequency of 433 MHz
• Range is 65 to 100 feet
• Relative humidity range is 25 to 90%
• Resolution of 1%
• Accuracy of ±2%RH mid-range to ±4%RH elsewhere
• Thermometer range is –4 to 140°F and –20 to 60°C
• Temperature resolution is 0.1°
• Temperature accuracy is ±1°C
• Size of main unit is 4-1/4 x 4-1/2 x 3/4 inches
• Weight is 6 ounces
• Remote sensor module is 2-1/3 x 3-1/2 x 3/4 inches
• Weight is 3 ounces

• Control Company 4380 Datasheet.pdf