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Freeze Alarms Comparison Chart





housEvolve

Sensaphone 400

Wireless Freeze Alarm

Deluxe Freeze Alarm

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

Intermediate Freeze Alarm

Wireless Freeze Alert & Phone Dialer

Temperature Warning Light - Freeze Flash - (FZ-5)

HomeSitter HS-700

THP201

Freeze Alarm Dialer

PhoneOut Freeze Alarm

Model
Model
Price
$399.98 & up
$355.50 & up
$269.99
$229 & up
$219.99
$74.95 and up
$195.00 and up
$158.00 & up
$130.00
$79.99
$78.00
$67.99 and up
$54.00
$45.99
Price
Brand
Various Manufacturers
Brand
Monitors for...
Both Low and High Temp, plus Power Outages and more with optional sensors.
Both Low and High Temp, plus Power Outages and more with optional sensors.
EITHER Low or High Temp, plus Power Outages and additional wireless temp sensors (up to 10 total).
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., 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
Both Low and High Temp, including Outdoor

Low Temp

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

Low Temp and Power Outages
plus Flood (THP201 only)

EITHER Low or High Temp (select one mode)
Low Temp
Monitors for...
Alarm Condition Delay
None for temp, 30 mins. for power
Adjustable
Select 0 or 60 minutes
Select 0 or 45 mins
No
No
See product info
Select 0 or 45 mins
Select 0, 30, 45, 60 or 75 seconds
No
Power-out only: Select 15 or 60 minutes
Select 5 or 30 minutes
No
No
Alarm Condition Delay
Temperature Setpoint
Fixed 40 F/90 F
Adjustable
Adjustable (but all additional sensors use same temp setpoint)
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Adjustable
Fixed 45 F or 85 F
Fixed 45 F
Fixed 45 F
or 85 F
Fixed 42 F
Temperature Setpoint
Recites actual temp on phone call
Yes
Yes
Yes
Yes
No
No voice (alerts sent via email/SMS)
No voice (alerts sent via email/SMS)
Yes
No
N/A
No
No
No
No
Recites actual temp on phone call
What you will hear when it calls you
"housEvolve report... two alerts... freeze alert... power failure alert... end report. Current temperature 39 degrees." Also recites HVAC status and menu prompts.
Your own recorded voice label plus the current temperature, AC and battery status, status of optional added sensors, and microphone.
Your own recorded voice label, then "The following alarms currently exist or have occurred recently at location ####." Unit will recite alarms & which sensors have them. Then it offers options to repeat or acknowledge.
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.
Your own recorded voice label
N/A
"This is your HomeSitter Alarm calling. You have a [temperature, power, water, battery] emergency at your monitored location."
"Warning - Alarm condition. One beep is for temperature, two power, three accessory (THP201 only). A long beep is for multiple alarms. Press # to acknowledge or press * and then 0 to disable."
"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."
An alarm tone.
What you will hear when it calls you
Calls how many phone numbers?
5
4
3
3
4
No voice
No voice (unlimited email/SMS)
3
9
N/A
3
3
1
5
Calls how many phone numbers?
Number of call retries
Infinite
Select 1 thru 255
Infinite
Infinite
Select 1 thru 15
NA
N/A
Infinite
Select 1 thru 9
N/A
Infinite
Infinite (up to 10 hours)
Infinite
Select 1 thru 5
Number of call retries
Intercall delay
20 mins
Select 10 secs thru 60 mins
15 mins between rounds
Select 15 or 120 mins
Select 30 or 60 secs
NA
See product info
Select 15 or 120 mins
No
N/A
Select 15 mins or 60 mins
15 mins between rounds
Select 15 or 120 mins
None
Intercall delay
Stops calling if temp restores
Yes
No
No
No
No
NA
See product info
No
No
N/A
No
Yes
No
No
Stops calling if temp restores
Alarm calls re-initiate after acknowledgement if condition still exists
No
No
No
No
No
NA
See product info
No
No
N/A
No
60 minutes after acknowledgement
No
N/A (no acknowledgement feature)
Alarm calls re-initiate after acknowledgement if condition still exists
Call-in to hear exact temperature
Yes
Yes
Yes
Yes
No
No voice, but accessible via web/smartphone
No voice, but accessible via web/smartphone
Yes
No
N/A
No
No
No
No
Call-in to hear exact temperature
Call-in to enable/disable monitoring
No
Yes
No
No
Yes
Login via web
Login via web
No
No
N/A
No
No, but can disable when it calls you. (Disable requires physical reset in order to re-enable)
No
No
Call-in to enable/disable monitoring
Remote programming?
Yes: Enable/Disable, Change phone numbers, Activate Outputs, Status Report
Yes: Enable/Disable, Change temp setpoints, Change phone numbers, Record voice msgs, Activate Output, Listen-in, Status Report
Yes: Change temp setpoints, Change phone numbers, Change security code, Change # of rings, Change power delay, Status Report
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
No
N/A
No
No
No
No
Remote programming?
Answering Machine Support
Yes
Yes
Yes
Yes
Yes
NA
N/A
Yes
No
N/A
Yes
N/A (no call-in capability)
Yes
N/A (no call-in capability)
Answering Machine Support
VOIP Compatible
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
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
Yes if VOIP system has own battery backup
Yes if VOIP system has own battery backup
VOIP Compatible
Power Outage Notification
Yes
Yes
Yes
Yes
Yes
Yes (Last seen alert indicates internet connection loss generally caused by power loss)
With optional sensor (some models)
Yes
No
N/A
Yes
Yes
No
No
Power Outage Notification
Power Out Reaction Time
30 mins
Adjustable
Adjustable
Select between 1 and 120 minutes
Adjustable
About 15 min
See product info
Select between 0 and 120 minutes
N/A
N/A
Select 15 or 60 mins
Select 5 or 30 mins
N/A
N/A
Power Out Reaction Time
Additional conditions monitored
Batteries, Power. Optional add-ons for alerts/control of: Water/flood, garage doors, multiple thermostats, HVAC
High sound level, power, plus many optional add-on sensors are available
Batteries, Power, plus optional extra temp sensors
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
Many optional add-on sensors are available
N/A
Flood, Power, Battery
Flood, Power
Batteries
None
Additional conditions monitored
Remote Control Thermostat Compatible
Yes, Adjustable
Yes, Toggle (setback)
No
No
Yes, Toggle (setback)
No
Yes, Adjustable
No
No
N/A
No
No
No
No
Remote Control Thermostat Compatible
Battery Backup
Yes, Rechargeable, Included
Alkaline only
(6) C-Cells
Not included
Base station uses 9V battery for back-up. Not included. Sensors are powered by 2 AA batteries. Not 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

Alkaline only
(1) 9VDC
Included

Alkaline only
(2) D
Not Included
Alkaline only
(2) AA
Not Included
Alkaline only
(1) 9VDC
Included
(2) AA Batteries
Not included
Alkaline only
(1) 9VDC
Not included
Battery Backup
How to acknowledge
Press *#* when prompted 
Enter 555 or call unit back
Enter security code or call unit back and enter code.
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.
Press # during alarm call
N/A
Press 1# during alarm call or call unit back
Press and hold # key or press *0 to disable
Press 1# during alarm call or call unit back
Cannot acknowledge
How to acknowledge


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