| Range | 0 to 100% RH (non-condensing) |
| Accuracy | - ± 2% RH (0 to 80%)
- ± 3% RH (80% to 100%)
|
| Resolution | 0.01 %RH |
| Response Time | - Leaded sensor: 40 seconds (8-second time constant)
- Non-leaded sensor: 6+ hours (75-minute time constant)
|
| Temperature Measurement Range | - Leaded sensor: -25°C to 70°C (-13°F to 158°F)
- Non-leaded sensor:
- ALTA Commercial: 10°C to 50°C (50°F to 122°F)
- ALTA Enterprise: -18°C to 55°C (0°F to 130°F) using alkaline batteries
- ALTA Industrial: -40°C to 70°C (-40°F to 158°F)
|
| Accuracy | ± 0.3°C (0.54°F) Typical |
| Resolution | 0.01°C (0.018°F rounded to 0.01 decimal place) |
| Response Time | - Leaded sensor: 15 seconds (3 second time constant)
- Non-leaded sensor: 100 minutes (20 minute time constant)
|
| Leaded Probe Tip Dimensions | 11 mm Wide x 4.5 mm Tall (0.44" Wide x 0.16" Tall) |
| Leaded Probe Tip Construction | PCA with high accuracy digital temp/humidity sensing element, soldered interface wires, all wrapped in waterproof heat shrink with small hole for air exchange. |
| Wire Details | - 4-conductor, 26 AWG, stranded copper
- Insulation: PVC, 0.010"
- Shield: No
- Jacket: PVC (black)
- Overall Diameter: 4.25 ± 0.2 mm (0.17" ± 0.007)
|
| Ratings / Approvals | UL AWM STYLE 2464, cUL AWM I/II A 80°C 300V FT1 LF |
| Temperature Rating | -25°C to 80°C (-13°F to 176°F) |
| Voltage Rating | 300 V Max |
| Dielectric Strength | 1500 V RMS |
| Cable Length | - Standard: 0.9 m (3 ft)
- Optional: 0.1, 3, 7.5 m (0.33, 10, 25 ft)
|
| Wireless | - Data logging: Sensor logs 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through power cycling)
- Wireless protocol: ALTA Proprietary Frequency-Hopping Spread Spectrum (FHSS)
- Wireless transmission power (EIRP): 50 mW (900MHz), 25 mW (868 MHz), 10 mW (433 MHz)
- Wireless range: 2,000+ ft. through 18+ walls with the ALTA XL Gateway
- Security: Encrypt-RF (256-bit key exchange and AES-128 CTR)
|
| General | - Battery voltage range: 2.0 to 3.8 VDC
- Operating altitude (non-pressurized): -15.2 to 1,982 m (-50 to 6,500 ft)
- Storage altitude (non-pressurized environments): -15.2 to 3,048 m (-50 to 10,000 ft)
- Operating humidity: 5 to 85% RH (non-condensing)
|
| Battery | - 2x 1.5V AA Alkaline, 1500 mAh (standard)
- 2x 1.5V AA Lithium, 3000 mAh (optional)
|
| Battery Life | 10+ years expected |
| External Line-Power Option | - Input voltage: 5.0-12.0 V
- Power jack: 2.1 x 5.5 mm barrel, center positive
|
| Operating Temperature Range (Non-leaded measurement range) | - -18°C to 55°C (0°F to 130°F) - AA Alkaline Batteries
- -25°C to 60°C (-13°F to 140°F) - AA Lithium L91 Batteries
- 0°C to 40°C (32°F to 104°F) - US 5V Power Supply
- 10°C to 40°C (50°F to 104°F) - International 5V Power Supply
|
| Wireless Antenna Type | 1/4-wave, 20 gauge wire whip, 3.5" (900/868MHz), 7" (433MHz) |
| Weight | - 3 oz. (85.05 g) with no lead
- 3.7 oz. (105 g) with 0.9 m (3.0') lead
|
