ALTA Commercial Coin Cell Wireless Humidity Sensor
Technical 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 |
*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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