Data Acquisition & Logging

Wireless Activity Detection Sensors

Description Features Configuration Application

ALTA wireless activity sensors can be used in a host of applications where detecting vibration (sudden movement) or counting the number of vibrations is required.

• Detects vibration or sudden movement

Principle of Operation

Activity Detection—sensor detects sudden movement or non-movement of a given device or surface, and alerts you of the change.

Features of Monnit ALTA Sensors

• Wireless range of 1,200+ feet through 12+ walls *

• Frequency-Hopping Spread Spectrum (FHSS)

• Improved interference immunity

• Improved power management for longer battery life ** (12+ years on AA batteries)

• Encrypt-RF® Security (Diffie-Hellman Key Exchange +AES-128 CBC for sensor data messages)

• Onboard data memory stores up to 512 readings per sensor:

-10-minute heartbeats = 3.5 days

-2-hour heartbeats = 42 days

• Over-the-air updates (future proof)

• Free iMonnit basic online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email

* Actual range may vary depending on environment.

** Battery life is determined by sensor reporting frequency and other variables. Other power options are also available.

ALTA Commercial Coin Cell Wireless Activity Detection Sensor | Technical Specifications

Supply voltage					2.0–3.8 VDC *
Current consumption					0.2 µA (sleep mode), 0.7 µA (RTC sleep), 570 µA (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)					-7°C to +60°C (20°F to +140°F)
Optimal battery temperature range (coin cell)					+10°C to +50°C (+50°F to +122°F)
Sensitivity					0.05 g
Integrated memory					Up to 512 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

ALTA Commercial AA Wireless Activity Detection Sensor | Technical Specifications

Supply voltage					2.0–3.8 VDC (3.0–3.8 VDC using power supply) *
Current consumption					0.2 µA (sleep mode), 0.7 µA (RTC sleep), 570 µA (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 batteries)					-18°C to 55°C (0°F to 130°F) using alkaline
					-40°C to 85°C (-40°F to 185°F) using lithium
Optimal battery temperature range (AA)					+10°C to +50°C (+50°F to +122°F)
Sensitivity					0.05 g
Integrated memory					Up to 512 sensor messages
Wireless range					1,200+ ft non-line-of-sight
Security					Encrypt-RF® (256-bit key exchange and AES-128 CTR)
Weight					3.7 ounces

ALTA Industrial Wireless Activity Detection Sensor | Technical Specifications

Supply voltage		2.0–3.8 VDC (3.0–3.8 VDC using power supply) *
Current consumption		0.2 µA (sleep mode), 0.7 µA (RTC sleep), 570 µA (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 battery)		-40°C to +85°C (-40°F to +185°F)
Included battery	Max temperature range	-40° to +85°C (-40° to +185°F)
	Capacity	1500 mAh
Optional solar feature	Solar panel	5VDC/30mA (53mm x 30mm)
	Charging temperature range	0° to 45°C (32° to 113°F)
	Max temperature range	-20° to 60°C (-4° to 140°F)
	Included rechargeable battery	600 mAh/>2000 charge cycles (80% of initial capacity)
	Solar efficiency	Optimized for high and low-light operation **
	Charging efficiency	40% ***
	Luminous sustainability	Minimum of 250 LUX ***
Sensitivity		0.05 g
Integrated memory		Up to 512 sensor messages
Wireless range		1,200+ ft non-line-of-sight
Security		Encrypt-RF® (256-bit key exchange and AES-128 CTR)
Weight		4.7 ounces
Enclosure rating		NEMA 1, 2, 4, 4x, 12 and 13 rated, sealed and weather proof
UL rating		UL Listed to UL508-4x specifications (File E194432)

Example Applications

Machinery monitoring
Pump monitoring
Detect if a window is broken or shattered
Many additional applications

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