Wireless Humidity and Temperature Transmitter Part of the NOMAD® Family


Wireless Humidity and Temperature Transmitter Part of the NOMAD® Family | OM-CP-RFRHTEMP101A

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  • Dew Point and Vapor Concentration Calculated in Software
  • No Wires, No Installation Cost
  • Miniature Size
  • Automatically Converts Your PC Into a Strip Chart Recorder


This product is no longer available. Please see the OM-CP-THERMALERT-RH as a possible alternative or contact our Data Acquisition Engineering department.

The OM-CP-RFRHTEMP101 is a miniature, wireless, battery powered, stand-alone, humidity and temperature transmitter. This all-in-one compact, portable, easy to use device will measure and transmit temperature and humidity measurements. When enabled, the wireless transmitter will transmit readings back to the host computer where the data can be analyzed in real time. These readings are also logged to the device’s memory for added data security. The convenient slide switch allows the transmitter to be turned on or off without affecting the operation of the device. Data is received at the PC using the OM-CP-RFC101A receiver antenna that attaches directly to the serial port. All received data is time and date stamped and stored directly in your PC. Its small size allows it to fit almost anywhere.

The OM-CP-RFRHTEMP101A is a major leap forward in both size and performance. Numerous devices may transmit data to the same receiving station. The Windows software converts your PC into a real time strip chart recorder. Data can be printed in graphical or tabular format and can be exported to a text or Microsoft Excel file.

Temperature Sensor:
Temperature Range:
-30 to 70°C (-22 to 158°F)
Temperature Resolution: 0.1°C
Calibrated Accuracy:
+0.5°C (0°C to +50°C)

Humidity Sensor:
Humditity Range:
0 to 100% RH non-condensing
Humidity Resolution: 0.5% RH
Calibrated Accuracy:
+3% RH (+2% RH typical at 25°C)
Response Time: 90% change
in 60 seconds in slow moving air
Calibration: Digital calibration through software
Start Time: Software programmable start time and date
(up to 6 months in advance)
Real Time Recording: Transmitts data to PC
to monitor and record data in real time
Memory: 5461 readings per channel

Reading Interval:
1 reading every
30 seconds to 1 every 12 hours
Data Format: Date and time
stamped °C, °F, °K, °R; %RH,
mg/ml of water vapor concentration
Time Accuracy: +1 minute/month
(at 20 to 30°C; -4 to 86°F)
Computer Interface: PC serial, RS-232C COM or USB
(interface cable required); 57600 baud
RF Baud Rate: 4800 baud
RF Carrier Communication: 418 MHz
Range: 36 m (120') line of sight
Power: 3.6 V lithium battery included
Battery Life:1 year typical,
(1 minute reading rate @ 25°C)
Software:XP SP3/Vista and 7 (32-bit and 64-bit
Operating Environment:
-30 to +70°C (-22 to 158°F)
5 to 95% RH non-condensing
20 H x 42 W x 68 mm D
(0.8 x 1.7 x 2.7")
Weight: 60 g (2 oz)
Enclosure: ABS plastic


Baixar OM-CP-RF Series - Wireless Transmitters
Baixar OM-CP Series - Data Logger and Software User Guide
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