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Monnit ALTA Wireless Humidity (RH) Sensor allows you to accurately monitor the relative humidity of the air within a room or enclosure. - Measures relative humidity, temp
Principle of OperationMonnit ALTA Wireless Humidity (RH) Sensor measures the relative humidity at the device. The sensor returns RH and temperature values to the iMonnit Online Sensor Monitoring and Notification System. The system calculates dew point from the data and stores all three data points in the online system where the data can be reviewed and exported as a data sheet or graph. Notifications can be set up through the online system to alert the user when defined thresholds have been met or exceeded.Example Interfacing
Features of Monnit ALTA Sensors
*Actual range may vary depending on environment. **Battery life is determined by sensor reporting frequency and other variables. Other power options are also available.
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ALTA Commercial AA Wireless Humidity SensorTechnical Specifications
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| Supply Voltage | 2.0-3.8 VDC * |
| Current Consumption | 0.2 µA (sleep mode), 0.7 µA (RTC sleep), 570 µA (MCU idle), 2.5 mA (MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode) |
| Operating temperature range (board circuitry and batteries) | 7°C to +55°C (20°F to +131°F) |
| Optimal battery temperature range (batteries) | +10°C to +50°C (+50°F to +122°F) |
| Accuracy | ± 2% under normal conditions (0%-80% RH) ** |
| RH operating range | 0-100% RH ** |
| RH response time | 8 sec (tau 63%) ** |
| Datalogging | Datalogs 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through the power cycle): - 10-minute heartbeats = ~ 22 days |
| Wireless Range | 1,200+ ft non-line-of-sight |
| Security | Encrypt-RF ® (256-bit key exchange and AES-128 CTR) |
| Weight | 0.7 ounces |
| Certifications | 900 MHz product; FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz product tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950 |
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*Hardware cannot withstand negative voltage. Please take care when connecting a power device. **View charts on last page for more information. |
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ALTA Commercial Coin Cell Wireless Humidity SensorTechnical Specifications
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| Supply Voltage | 2.0-3.8 VDC (3.0-3.8 VDC using power supply) * |
| Current Consumption | 0.2 µA (sleep mode), 0.7 µA (RTC sleep), 570 µA (MCU idle), 2.5 mA (MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode) |
| Operating temperature range (board circuitry and coin cell) | -18°C to 50°C (0°F to 122°F) using alkaline -40°C to 80°C (-40°F to 176°F) using lithium |
| Optimal battery temperature range (coin cell) | +10°C to +45°C (+50°F to +113°F) |
| Accuracy | ± 2% under normal conditions (0%-80% RH) ** |
| RH operating range | 0-100% RH ** |
| RH response time | 8 sec (tau 63%) ** |
| Datalogging | Datalogs 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through the power cycle): - 10-minute heartbeats = ~ 22 days |
| Wireless Range | 1,200+ ft non-line-of-sight |
| Security | Encrypt-RF ® (256-bit key exchange and AES-128 CTR) |
| Weight | 0.7 ounces |
| Certifications | 900 MHz product; FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz product tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950 |
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*Hardware cannot withstand negative voltage. Please take care when connecting a power device. **View charts on last page for more information. |
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ALTA Industrial Wireless Humidity SensorTechnical Specifications
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| Supply Voltage | 2.0-3.8 VDC (3.0-3.8 VDC using power supply) * |
| Current Consumption | 0.2 µA (sleep mode), 0.7 µA (RTC sleep), 570 µA (MCU idle), 2.5 mA (MCU active), 5.5 mA (radio RX mode), 22.6 mA (radio TX mode) |
| Operating temperature range (board circuitry and battery) | -18°C to 50°C (0°F to 122°F) using alkaline -40°C to 80°C (-40°F to 176°F) using lithium |
| Optimal battery temperature range (battery) | +10°C to +45°C (+50°F to +113°F) |
| Accuracy | ± 2% under normal conditions (0%-80% RH) ** |
| RH operating range | 0-100% RH ** |
| RH response time | 8 sec (tau 63%) ** |
| Datalogging | Datalogs 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through the power cycle): - 10-minute heartbeats = ~ 22 days |
| Wireless Range | 1,200+ ft non-line-of-sight |
| Security | Encrypt-RF ® (256-bit key exchange and AES-128 CTR) |
| Weight | 0.7 ounces |
| Certifications | 900 MHz product; FCC ID: ZTL-G2SC1 and IC: 9794A-G2SC1. 868 and 433 MHz product tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950 |
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*Hardware cannot withstand negative voltage. Please take care when connecting a power device. **View charts on last page for more information. |
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Monnit ALTA Wireless Humidity (RH) Sensor allows you to accurately monitor the relative humidity of the air within a room or enclosure. - Measures relative humidity, temp
All Dickson chart recorders feature a large 8″ or 6" chart and user-selectable recording timeframes (1-day, 1-week, 1-month) and ranges.
Choose from the following features:
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- Safe to use in both hot and freezing temperatures
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- Moisture readings in centibar and kPa
- 0 to 240 centibar (kPA)
- Will not dissolve in soil
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- Stainless steel electrodes
- No maintenance required
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- 5 ft removable lead
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Data held in memory can then be transferred to a PC via dedicated software for later analysis or other use.
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3 types of probe are provided for SK-RHC series transmitters.
Select the suitable probe to your usage.
AC adapter is available at option.
(The probe shown in the photo is the plug-in type)
Sato 4-channel datalogger SK-L400T for temperature measurement with K type themocouple probes.
Possible to simultaneously display four temperatures from four different locations on the large LCD. The measured values can be logged on the SD card.
NB. Probes are separately purchased, not included in the main unit.
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One box of 7 day charts included.
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Comes with software with graphical display on PC.
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