by The Leading Enterprise Internet of Things Solution Wireless 0-5 VDC Voltage Meters General Description Features of Monnit ALTA Sensors The ALTA Wireless Voltage Meter measures the voltage Wireless range of 1,200+ feet through 12+ walls * between two electrical points. It can be connected Frequency-Hopping Spread Spectrum (FHSS) to the power and ground of any voltage source and Improved interference immunity measure within stated accuracy up to 5 VDC. It can be Improved power management for longer battery life ** connected to any kind of variable voltage device, such (12+ years on AA batteries) as a transducer or sensor that outputs voltage. If the Encrypt-RF Security (Diffie-Hellman Key Exchange device to be measured is passive, the user must supply + AES-128 CBC for sensor data messages) their own excitation voltage to the device. All ALTA sensors now have up to 3200 readings: - 10-minute heartbeats = 22 days Accurate to 3.0% of reading. - 2-hour heartbeats = 266 days Accurate to 0.5% of reading with user calibration Over-the-air updates (future proof) Interfaces with any variable-voltage device Free iMonnit basic online wireless sensor monitoring 1 mV resolution and notification system to configure sensors, view data and set alerts via SMS text and email Principle of Operation Actual range may vary depending on environment. * Battery life is determined by sensor reporting ** ALTA Wireless Voltage Meters read the voltage frequency and other variables. Other power options difference between two electrical points and reports are also available. back the measured voltage. It is programmed to sleep for a user-given time interval (heartbeat) and then wake up, convert the analog data, mathematically compute Wireless Range Comparison Wireless Range Comparison the voltage, 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 Monnit ALTA on threshold breaches. Example Applications Monnit Battery health Voltage measurement Other Wireless Platforms Transducer measurement Machinery Electrical motors Many additional applications Wifi Bluetooth PAGE 11.125 in Pinch and Pull (28.575 mm) To Change Battery 2.0 in (50.8 mm) CR2032 BATTERY 0.875 in (22.225 mm) ALTA Commercial Coin Cell Wireless 0-5 VDC Voltage Meter Technical Specifications Supply voltage 2.03.8 VDC * Current consumption 0.2 A (sleep mode), 0.7 A (RTC sleep), 570 A (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) -7C to +60C (20F to +140F) Optimal battery temperature range (coin cell) +10C to +50C (+50F to +122F) Voltage range 05 volts DC** Resolution ~1 mV Accuracy +/- (0.006 VDC + 3.0% of Reading) User-calibrated accuracy +/- (0.003 VDC + 0.5% of Reading) *** Open circuit voltage ~0.00 volts Max rated input 10 volts Input Impedance 13 kOhms Lead wire length 2 Wires, 1 ft (12 in), Red (+), Black (-), 18 AWG (Custom lengths available upon request) Integrated memory Up to 3200 sensor messages 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- Industry 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 Canada V3.1.1 (2017-02) and EN 60950 Hardware cannot withstand negative voltage. Please take care when connecting a power device. * The sensor is capable of measuring above 5 volts but may not meet the specified accuracy above this value. ** For best results calibrate at a voltage between 50% and 90% of the voltage range. *** PinchPower Enclosures CR2032 BATTERY CR2032 BATTERY + Pinch Pull Press (sensor away from base) (sensor back into base) (press in on the sides) PAGE 2