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Wireless Temperature Sensor

Available Probe Options

Product Description

ALTA wireless temperature sensors use a thermistor to accurately measure temperatures. These sensors are perfect for monitoring ambient temperatures around the sensors physical location. User customization allows you to set the frequency of readings and the ability to set thresholds for alerts via SMS text and/or email.

SANAS certification is available on leaded temperature sensors..

ALTA - Leading Enterprise Grade "Internet of Things" Solutions
ALTA sensors offer 3 to 4 times the range of standard sensor platforms, extending non-line-of-sight reach to an exceptional 1,000+ feet through walls (12-14 walls typical). Using Frequency-hopping Spread Spectrum (FHSS) also allows ALTA sensors to have better interference immunity from other wireless devices.

Superior power management provides ALTA sensors with almost twice the battery life of Monnit’s standard wireless sensors.

Coin cell sensors typically last 3+ years.
AA and Industrial sensors typically last up to 10+ years.
ALTA products employ Monnit's new Encrypt-RF™ Security (256-bit Diffie Hellman key exchange and AES-128 CBC encryption for all sensor data messages), so security is maintained at all communication points from sensor to gateway, gateway to software, then back again.

Integrated on-board data storage allows ALTA sensors to store data messages if communication to a wireless gateway is disrupted (power outage, Internet outage, or out of range). Messages that can’t be delivered will be time-stamped and stored in memory (up to the last 512 messages) until communication with the gateway is restored, at which point the messages will all be transmitted.

Over-the-air updates allow ALTA products to be updated remotely if new fixes or features become available.




No Probe

Part No: MNS2-8-W2-TS-ST

1m Probe

Part No: MNS2-8-W2-TS-ST-L03

3m Probe

Part No: MNS2-8-W2-TS-ST-L10


Temperature Options


High Temperature:

-50°C to +370°C 

Low Temperature:

-200°C to +162°C 

Water Temperature:

-40°C to +125°C 

Duct Temperature:

-40°C to +125°C 

Quad Temperature:

-40°C to +125°C 

Thermistor Specifications
Accuracy @ 25°C                                                        +/- 1%
User Calibrated Accuracy                                             +/- 0.25° C
Time Constant @ 25°C                                                 15 sec max
Weight                                                                       3.6 oz. (3.7 oz w/ 3’ probe)
Probe Operating Temperature Range                              -40°C to +125°C ( -40°F to +257°F )
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, included AA batteries will                                                                                              typically last 6-8 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 868 MHz Specifications
Operating Frequency                                       868 MHz Operating Frequency
Certifications                                                  CE Certified. Tested and found to comply with: EN 300 220-2 V3.1.1                                                                       (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950.
Security                                                           Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)
Device Range                                                   Device Range Up to 300m. non-line-of-sight, wireless device range*

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