Humidity Sensor Specifications
Accuracy	± 3% under normal conditions ( 10% - 90% RH )
RH Operating Range	0 – 100% RH
RH Response Time	8 sec ( tau 63% )
Weight	3.7 oz.
Variation Specifications
Security	Encrypt-RF® (256-bit key exchange and AES-128 CTR)
ALTA AA Specifications
Battery Type	2 Replaceable AA 1.5 V Batteries
Dimension	4.375 in x 2.470 in x 1.12 in
Supply Voltage	2.0 - 3.8 V (2 x AA 1.5V Batteries or Optional Power Supply)
Battery Life	At 1 hour heartbeat setting, AA batteries will last up to 10 years.**
Max Operating Temperature Using AA Alkaline	-18°C to 55°C (0°F to 130°F)
Max Operating Temperature Using AA Lithium	-40°C to 60°C (-40°F to 140°F)
Optimal Battery Operating Temperature	+10°C to +50°C (+50°F to +122°F)
Enclosure Material	ABS
ALTA 900 MHz Specifications
Operating Frequency	900 MHz Operating Frequency
Certifications	Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1) Complies with Industry Canada standards. (IC: 9794A-G2SC1)
Device Range	Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*
Security	Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)