The Monnit Wireless Resistance Sensor outputs the resistance across a load. It is programmed to sleep for a user-given time interval (heartbeat) and then wakeup, send power to the load resistor, wait for it to stabilize, and convert the analog data, mathematically compute the resistance and transmit the data to the gateway, where it is then logged into a cloud service. The user can configure defined thresholds and have the system alert on threshold breaches. Data is recorded in Ohms.
Monnit MNS2-9-IN-RS-ST-L03 Features1,200+ foot range12+ year battery life80+ wireless sensorsBank-level AES securityUp in 15 easy setupGlobal ready (900, 920, 868 & 433 MHz)
Resistance Sensor SpecificationsResistive Range (in Ohms): 0 – 145000Specific Resistive Ranges (in Ohms): 0 – 530, 530 – 3500, 3500 – 27200, 27200 - 145000Resolution: 2047 Unique Values Per Specific Range (11 bit): ~.25, ~1.71, ~13.3, ~70.8.Accuracy: +/- 3% FS of Specific RangeUser Calibrated Accuracy: +/- 1.5% FS of Specific RangeLead Wire Length: 1 ft. ( 12 in.)
Variation SpecificationsResolution (in Ohms): 65535 Unique Values Per Specific Range (16 bit): ~3.4, ~125Weight: 5.1 oz. (145 g) with 3 ft. (0.91 m) lead
ALTA Industrial SpecificationsSupply Voltage: 2.0 - 3.8 VDCBattery Type: Replaceable 3.6V, 1800mAH (single AA sized)Battery Life: At 1 hour heartbeat setting, battery will last up to 10 years.**Max Operating Temperature: -40° to 85°C (-40° to 185°F)Optimal Battery Operating Temperature: +10°C to +50°C (+50°F to +122°F)Solar Power Option: 3.0 VDC Solar Panel 600 mAH Rechargeable Battery (>2000 Charge Cycles - 80% of Initial Capacity)Charging Temperature Range: 0° to 45°C (32° to 113°F) Max Temperature Range: -20° to 60°C (-4° to 140°F)Enclosure Material: IP65, NEMA 4X, CE rated, sealed, weatherproof enclosureUL Rating: UL Listed to UL508-4x specifications (File E194432)Dimension: 3.7 in x 2.32 in x 1.38 in
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)