Heat Alarms Comparison Chart






Sensaphone 400

Winland EnviroAlert IP Monitoring Console EA800-ip

DIY Cellular Alarm for Homes

Elertus wifi smart sensor

Deluxe Freeze Alarm

Wireless Temperature Alarm Kit
Online Temperature and Humidity Wireless Alert System
Internet Thermostats

Intermediate Freeze Alarm

HomeSitter HS-500

HomeSitter HS-700

Freeze Alarm Dialer

Freeze Alarm Dialer


Model
Model
Communication Method

Phone - Based: Landline or Cellular*

(*using Optional Cellular Terminal or Bluetooth Terminal)

Internet (wired)
Cellular
Cellular

Phone - Based: Landline or Cellular*

(*using Optional Cellular Terminal or Bluetooth Terminal)

Phone - Based: Landline or Cellular*

(*using Optional Cellular Terminal or Bluetooth Terminal)

Internet (wired gateway)
Internet

Phone - Based: Landline or Cellular*

(*using Optional Cellular Terminal or Bluetooth Terminal)

Cellular

Phone - Based: Landline or Cellular*

(*using Optional Cellular Terminal or Bluetooth Terminal)

Phone - Based: Landline or Cellular*

(*using Optional Cellular Terminal or Bluetooth Terminal)

Local Alert Only

Communication Method
Brand
Other
Various Manufacturers
Brand
Monitors for...
Both Low and High Temp, plus Power Outages and more with optional sensors.

Dependent on sensors chosen.

Power, Temp, water, Motion, Window/Door, and more

Power Outage plus 2 conditions with added sensors choose from drop down for: Both Low and High Temp, Flood/water, and more conditions

Dependent on sensors chosen.

Power, Temp, water, Motion, Window/Door, and more

Both Low and High Temp, plus Power Outages and more conditions with optional sensors.
Both Low and High Temp, plus Power Outages and more with optional sensors.
Both Low and High Temp., humidity, Last seen (power or internet loss)
Both Low and High Temp, plus some models monitor more conditions with optional sensors.
EITHER Low or High Temp (select one mode), plus Power Outages

Temp, Humidity, Power Outages
plus Flood*

(*Coming soon Wireless water sensors)

EITHER Low or High Temp (select one mode) plus Power Outages
plus Flood

EITHER Low or High Temp (select one mode)
High Temp
Monitors for...
Alarm Condition Delay
Adjustable
Adjustable
No
Adjustable
Select 0 or 45 mins
No
No
See product info
Select 0 or 45 mins
Power-out only: 8 - 10 seconds
Power-out only: Select 15 or 60 minutes
No
No
Alarm Condition Delay
Temperature Setpoint
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Fixed 45 F or 85 F
Fixed 45 F
or 85 F
50F to 110F
Temperature Setpoint
Provides actual temp in phone call, email or SMS
Yes
Yes
No
Yes
Yes
No
Yes
Model Dependent
Yes
Yes
No
No
No
Provides actual temp in phone call, email or SMS
What you will hear when it calls you
Your own recorded voice label plus the current temperature, AC and battery status, status of optional added sensors, and microphone.
No voice (alerts sent via email/SMS.
No voice (alerts sent via SMS.
No voice (alerts sent via SMS/email.
Your own recorded voice label, followed by factory-recorded alarm messages telling you specifically what alarm conditions are or have recently occurred.
Your own recorded voice label, plus option to enter operations menu for arm/disarm, bypass, output activation, and microphone.
No voice. Email/SMS will contain temperature and/or alert condition
No voice. Email/SMS will contain temperature and/or alert condition.
Your own recorded voice label, followed by factory-recorded alarm messages telling you specifically what alarm conditions are or have recently occurred.
"This is your HomeSitter Alarm calling. You have a [temperature, power, water, battery] emergency at your monitored location."
"This is your HomeSitter Alarm calling. You have a [temperature, power, water, battery] emergency at your monitored location."
"Hello, This is your Freeze Alarm calling. The following alarm conditions exist or have occurred recently at your monitored location" followed by the specific alarm message "There is a temperature alarm" or "There is a battery alarm."
No voice, red signal light from the window to notify neighbors.
What you will hear when it calls you
Calls how many phone numbers?
4
No voice
3
1 or up to 3 dependent on plan
3
4
No voice
No voice (unlimited email/SMS)
3
No limit
3
1
N/A
Calls how many phone numbers?
Number of call retries / text messages / emails
Select 1 thru 255
Select 1 - 999
1
Selectable
Infinite
Select 1 thru 15
1
Most units 1
Infinite
1
Infinite
Infinite
N/A
Number of call retries / text messages / emails
Intercall delay
Select 10 secs thru 60 mins
NA
NA
NA
Select 15 or 120 mins
Select 30 or 60 secs
NA
See product info
Select 15 or 120 mins
N/A
Select 15 mins or 60 mins
Select 15 or 120 mins
No
Intercall delay
Stops calling if temp restores
No
Will send message once restored
Will send message once restored
Yes
No
No
NA
See product info
No

Will call/text/ or email when condition restores

No
No
No
Stops calling if temp restores
Alarm calls re-initiate after acknowledgement if condition still exists
No
Selectable alerts
NA
NA
No
No
NA
See product info
No
N/A
No
No
No
Alarm calls re-initiate after acknowledgement if condition still exists
Call-in to hear exact temperature
Yes
No voice, but accessible via web/smartphone
No
No voice, but accessible via web/smartphone
Yes
No
No voice, but accessible via web/smartphone
No voice, but accessible via web/smartphone
Yes
No
No
No
No
Call-in to hear exact temperature
Call-in to enable/disable monitoring
Yes
Login via web
No
Login via web
No
Yes
Login via web
Login via web
No
Login via web
No
No
No
Call-in to enable/disable monitoring
Remote programming?
Yes: Enable/Disable, Change temp setpoints, Change phone numbers, Record voice msgs, Activate Output, Listen-in, Status Report
Yes, via web
Yes, via text
Yes, via web
Yes: Review or change telephone numbers, temp setpoints, security code, messages, auxiliary alarm setting
Yes: Enable/Disable, Change phone numbers, Activate Output, Listen-in
Yes, via web
Yes, via web
Yes: Change temp setpoints, Change phone numbers, Status Report
Yes, Via web
No
No
No
Remote programming?
Answering Machine Support
Yes
NA
NA
NA
Yes
Yes
NA
N/A
Yes
N/A
Yes
Yes
No
Answering Machine Support
VOIP Compatible
Yes if VOIP system has own battery backup
NA
NA
NA
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
NA
NA
Yes if VOIP system has own battery backup
N/A
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
No
VOIP Compatible
Power Outage Notification
Yes
Yes with additional sensor, UPS suggested
Yes
Yes
Yes
Yes
Yes (Last seen alert indicates internet connection loss generally caused by power loss)
With optional sensor (some models)
Yes
Yes
Yes
No
No
Power Outage Notification
Power Out Reaction Time
Adjustable
Adjustable with sensor
5 sec
Instant
Select between 1 and 120 minutes
Adjustable
About 15 min
See product info
Select between 0 and 120 minutes
8 - 10 Seconds
Select 15 or 60 mins
N/A
No
Power Out Reaction Time
Additional conditions monitored
High sound level, power, plus many optional add-on sensors are available
add-on sensors for flood, humidity, and more
add-on sensors for flood, humidity, and more
add-on Sensors for various conditions
Battery, Power, plus optional add-on sensors for flood, intrusion
Batteries, Power, plus many optional add-on sensors are available
Humidity, or water/flood with added TX70U-IT
HVAC usage, offline/device failure. Optional add-on sensors for wireless intrusion or wired flood, smoke, power, and more (some models)
Battery, Power
Humidity, Flood, Power
Flood, Power, Battery
Batteries
Battery
Additional conditions monitored
Remote Control Thermostat Compatible
Yes, Toggle (setback)
No
No
No
No
Yes, Toggle (setback)
No
Yes, Adjustable
No
No
No
No
No
Remote Control Thermostat Compatible
Battery Backup
Alkaline only
(6) C-Cells
Not included
No (suggested use of external UPS)
Yes, 4 AAA included
Yes,Rechargeable 3.6v 600mah nimh (included)
Alkaline or Lithium
(1) 9VDC
(Lithium Recomm.)
Not included
Rechargeable
(6) AA NIMH
Included

No (suggested use of external UPS)
No (suggested use of external UPS)
Alkaline or Lithium
(1) 9VDC
(Lithium Recomm.)
Not included
Internal 3.7v 800,Ah Li-ion rechargeable (non-replaceable)
Alkaline only
(2) AA
Not Included
(2) AA Batteries
Not included
2 D-cell
Battery Backup
How to acknowledge
Enter 555 or call unit back
NA
NA
NA
Enter security code or call unit back and enter code.
Press 2 and enter user code followed by pound (#)
NA
N/A
Enter security code or call unit back and enter code.
N/A
Press 1# during alarm call or call unit back
Press 1# during alarm call or call unit back
N/A
How to acknowledge


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