Easy-to-Follow Menu Driven Programming Done Over the Phone
Discontinued product - please contact the Data Acquisition Dept for possible substitutes
Model OMA-VM500-3 is a full featured
monitor and alarm system
that monitors temperature and power
status wherever the unit is located.
This system can dial up to four phone
numbers, and the integrated voice
tells you the temperature and whether
the power is on or how long the power
has been off. You can also call the
unit at anytime and hear a status
report that gives you an update on the
conditions at your facility.
The OMA-VM500-3 is easily
programmed over the phone. Simply
locate the unit in the area where you
want to measure the temperature.
Plug in the phone line and the power
adapter and turn the unit on. Call the
unit from another phone or cell phone
and follow the spoken instructions to
program the temperature limits and
the emergency phone numbers. The
system is now programmed and is
monitoring temperature and power at
SPECIFICATIONS Temperature Measurement Range: 32 to 125°F (0 to 52°C);
Unit is set up factory default for Fahrenheit operation (can be changed in the field for Celsius operation) Temperature Sensor: Solid state Accuracy: ±2°F High and Low Programmable
Temperature Limits: 35 to 125°F Operating Ambient: 0 to 52°C
(32 to 125°F) Telephone: Standard RJ11 phone
jack connection Telephone Numbers:
Stores up to four phone numbers up to 20 digits long Personal Identification Message:
Record up to a 10-second message
over the phone Operation: Operates with answering
machine on the same phone line Power: Powered from included 120 Vac
wall mount transformer power supply Battery Backup: 4 hour
rechargeable battery backup; 20 or 30 hours optional Dimensions: 140 mm H x 127 mm W x 64 mm D (5.5 x 5 x 2.5") Material: ABS plastic Weight: 0.45 kg (1 lb)
† All dollar amounts on this site are shown in US currency.
Note: Each unit is supplied with complete user’s manual. .
Part Number Builder
Select Nothing(leave field blank) for no battery backup -B20 for 20 hour battery backup -B30 for 30 hour battery backup
Optional Celsius Operation(Fahrenheit is standard)
Select Nothing(leave field blank) for fahrenheit operation -C for celsius operation
NOTE: All combinations may not be valid, check spec sheet for valid part numbers.