Monnit wireless AC Current Meters measure the RMS current of an alternating current (AC) system using a current transformer (CT) that wraps around the "hot" wire of a two wire (hot, common, ground(optional)) power system. The sensor reports Minimum RMS current, maximum RMS current, average RMS current, and amp hours to the iMonnit system. The iMonnit system is capable of generating watt hour or kilowatt hour readings as well.
Monnit MNS2-9-W2-CM-020 Features1,200+ foot range12+ year battery life80+ wireless sensorsBank-level AES securityUp in 15 easy setupGlobal ready (900, 920, 868 & 433 MHz)
AC Current Meter SpecificationsAbsolute Max CT Current: 50 Amps RMS (Arms)Maximum Accurate CT Current: 20 A rmsFrequency Measurement Range: 50 – 100 HzOffset Limits: -1.27 to + 1.27 Arms (default set to +.1 Arms)Measurement Resolution: ~.01 ArmsLead Wire Length: 3 feetAccuracy: +/- (2% +.07 A rms) **Calibrated Accuracy with Appropriate Offset: +/- (1% + .035 A rms)
Variation SpecificationsSecurity: Encrypt-RF® (256-bit key exchange and AES-128 CTR)Weight: 4.9 oz. (139 g.) - with CT
ALTA AA SpecificationsBattery Type: 2 Replaceable AA 1.5 V BatteriesDimension: 4.375 in x 2.470 in x 1.12 inSupply 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 SpecificationsOperating Frequency: 900 MHz Operating FrequencyCertifications: 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)