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Temperature Alarms Comparison Chart


housEvolve

Sensaphone 400

Wireless Temperature Alarm Kit
BayWeb Internet Thermostat

Intermediate Freeze Alarm

HomeSitter HS-700

THP201

Basic Freeze Alarm

PhoneOut Freeze Alarm
Model
Model
Price
$609.00
$355.50
$219.99
$199.00 or $224.00
$158.00
$77.00
$58.99 or $63.99
$49.99
$41.50
Price
Brand
Freevolve
Phonetics d/b/a Sensaphone
DIYControls.com
Bay Controls
Control Products
Control Products
Reliance Controls
Control Products
Reliance Controls
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.
Both Low and High Temp, plus Power Outages and more with optional sensors.
Both Low and High Temp, plus more with optional sensors.
EITHER Low or High Temp (select one mode), plus Power Outages

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
No
No
Select 0 or 45 mins
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
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
No
No voice (alerts sent via email/SMS)
Yes
No
No
No
No
Recites actual temp on phone call
Calls how many phone numbers?
5
4
4
No voice (unlimited email/SMS)
3
3
3
1
5
Calls how many phone numbers?
Number of call retries
Infinite
Select 1 thru 255
Select 1 thru 15
n/a
Infinite
Infinite
Infinite
Infinite
Select 1 thru 5
Number of call retries
Intercall delay
20 mins
Select 10 secs thru 60 mins
Select 30 or 60 secs
Choices between 10 mins and 2 hours
Select 15 or 120 mins
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
Yes
No
No
Yes
Yes
No
Stops calling if temp restores
Alarm calls re-initiate after acknowledgement if condition still exists
No
No
No
No
No
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
No
No voice, temp avail. on web/smartphone
Yes
No
No
No
No
Call-in to hear exact temperature
Call-in to enable/disable monitoring
No
Yes
Yes
Login via web
No
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: Enable/Disable, Change phone numbers, Activate Output, Listen-in
Yes, via web
Yes: Change temp setpoints, Change phone numbers, Status Report
No
No
No
No
Remote programming?
Answering Machine Support
Yes
Yes
Yes
n/a
Yes
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
VOIP Compatible
Power Outage Notification
Yes
Yes
Yes
With optional sensor
Yes
Yes
Yes
No
No
Power Outage Notification
Power Out Reaction Time
30 mins
Adjustable
Adjustable
Instant
Select between 0 and 120 minutes
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 many optional add-on sensors are available
HVAC usage, offline/device failure. Optional add-on sensors for wireless intrusion or wired flood, smoke, power, and more.
Battery, Power
Flood, Power, Battery
Flood, Power
None
None
Additional conditions monitored
Remote Control Thermostat Compatible
Yes, Adjustable
Yes, Toggle (setback)
Yes, Toggle (setback)
Yes, Adjustable
No
No
No
No
No
Remote Control Thermostat Compatible
Battery Backup
Yes, Rechargeable, Included
Alkaline only
(6) C-Cells
Not included
Rechargeable
(6) AA NIMH
Included
No (suggested use of external UPS)
Alkaline or Lithium
(1) 9VDC
(Lithium Recomm.)
Not included
Alkaline only
(2) AA
Not Included
Alkaline only
(1) 9VDC
Included
Alkaline or Lithium
(1) 9VDC*
(Lithium Recomm.)
Not included
*This unit is purely battery powered (no AC adapter)
Alkaline only
(1) 9VDC
Not included
Battery Backup
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, 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.
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.
"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."
“This is your temperature monitoring system. There is a temperature alarm at your monitored location.Please check conditions at your monitored location."
An alarm tone.
What you will hear when it calls you
How to acknowledge
Press *#* when prompted 
Enter 555 or call unit back
Press 2 and enter user code followed by pound (#)
n/a
Enter security code or call unit back and enter code.
Press 1# during alarm call or call unit back
Press and hold # key or press *0 to disable
Call unit back
Cannot acknowledge
How to acknowledge