
Elpas Temperature Sensors
P/Ns: 5-STE00433-1 and 5-STC00433-1
Elpas Temperature Sensors are supervised Active RFID Tags that provide wireless remote
monitoring of environmental sensitive assets or environments that require strict temperature range
compliance.
The sensors report location based temperature monitoring data which is received and relayed over
the Elpas infrastructure to a host RTLS application or an integrated 3rd party platform for regulatory
compliance, temperature-range alerting or trend analysis.
Sensors are available with an internal thermistor for ambient temperature monitoring or with an
external probe for applications requiring higher precision. Both sensors feature wireless call-button
functionality to report preconfigured maintenance messages plus remote device supervision to
ensure field reliability.
Elpas Temperature Sensors are water/dust resistant, cleanable with alcohol based disinfectants
and are powered by one field-replaceable lithium battery.
It is important that you understand, and follow the instructions in this document. Should you have
any questions, please contact your local ELPAS support representative before proceeding with the
installation, operation or maintenance of these products.
Internal Thermistor Configuration
External Probe Configuration
Internal Thermistor (P/N: 5-STE00433-1)
* External Probe (P/N: 5-STC00433-1)
Supervision transmission duration - 4ms
Supervision transmission period - 127sec
Supervision transmission duration - 4ms
Supervision transmission period - 127sec
-10°C to 70°C (14°F to 158°F)
-40°C to 80°C (-40°F to 176°F)
+/- 2.0°C (-10°C to 70°C)
+/- 0.5°C (0°C to 70°C)
+/- 1.0°C (-40°C to 0°C) & (70°C to 80°C)
Supervised Events
Button Press/Low Battery
6 RF transmissions (each transmission 4ms in
duration), total burst duration - 927.5ms
6 RF transmissions (each transmission 4ms in duration),
total burst duration - 927.5ms
3V/270mAh lithium battery, Type CR 2430
3V/600mAh lithium battery, Type CR 2450
Red LED: Button Press, Low Battery
Green LED: Activation from sleep-mode
Red LED: Button Press, Low Battery
Green LED: Activation from sleep-mode
Unique, factory-programmed ID
Unique, factory-programmed ID
Sensor: IP64. External Probe: IP67
34 x 40 x 15 mm (1.3 x 1.6 x 0.6 inches)
34 x 40 x 15mm (1.3 x 1.6 x 0.6 inches)
Eiris Software V4.7.2 (or higher)
Eiris Software V4.7.2 (or higher)
1 year limited warranty (excluding battery)
1 year limited warranty (excluding battery)
3V/270mAh Lithium Battery, CR2430 (25pcs)
3V/600mAh Lithium Battery, CR2450 (25pcs)
Glycol Bottle and Mounting Kit
Supported Button Press Events
Temperature Sensors support Button Press events (designated B1) to report
maintenance messages.
Button Press: 3 messages are transmitted
(each @ 4ms in duration), 463.75ms apart. B1=1
Button Release: 3 messages are transmitted
(each @ 4ms in duration), 463.75ms apart. B1=0
Steady State (no button press/button release) B1=0
Introduction
Product Specifications
*Note: P/N: 5-STC00433-1 includes external probe - temperature sensor, one glycol bottle, one tag mounting clip and one probe mounting clip.
Product offerings and specifications are subject to change without notice. Not all products include all features

Elpas Temperature Sensors – User Guide
Initial Activation
Temperature sensors come from the factory in Sleep Mode to conserve
battery power during shipping.
To Activate the sensor from sleep mode, remove the Activation Label.
Then press the sensor’s call button
for at least 7 seconds.
If the activation process is successful the sensor’s
LED indicator will glow green for about 3 seconds.
The sensor is now ready to for enrollment in the host RTLS application.
Battery Replacement
Change the sensor’s status in the host RTLS application to
‘Inactive’.
Place the sensor back cover side up. Unscrew the 4 screws to
remove the back cover
Slide the battery out from under the battery holder. Dispose of
used battery in accordance with local regulations.
Before inserting a new battery into place, position the battery
Isolator such that its holes align with the battery contact pins.
Replace the battery ensuring that the positive (+) side of the
battery faces up.
Close the back cover such that the screw holes are correctly
aligned. Tighten the 4 screws snugly into place. Do not overtighten as this may strip the case threads.
Change the sensor’s status in the host RTLS application back to
‘Active’.
Glycol Bottle Usage Tips
When inserting the probe into the bottle, push the probe fully through the
screw cap so that a leak-proof seal is formed and then ensure that the
cap is properly screwed onto the bottle.
When removing the probe from the bottle, first unscrew the cap and only
then PUSH the probe out from the cap.
Caution DO NOT pull the
probe from the cap as this may
cause damage to the probe or
to the interface cable.
Installation & Usage Considerations
1. Temperature sensors are not compatible with Elpas1 Lon Readers.
2. The transmission range of the temperature sensor may vary when mounted in different types of refrigeration units;
3. Always use an Elpas Mounting Clip (P/N: 5-ETC09001) to mount the temperature sensor so that it can easily be removed
therefore a facility site survey to examine specific sensor mounting environments is required.
for service or replacement,
4. Supervisory Alerts should be configured in the host RTLS application to notify staff members that the temperature sensor
is: 1) being tampered with, 2) is in a low voltage condition or 3) is not properly transmitting temperature data. Additionally,
the operational status of these system alerts should be triggered once a week to ensure system integrity.

Elpas Temperature Sensors – User Guide
Cleaning Procedures
Use an appropriate antibacterial disinfectant such as Dispatch® Hospital Cleaner Disinfectant with Bleach from Caltech
Industries (http://www.caltechind.com) to clean the Elpas Temperature Sensors.
Since ‘Cleaning Procedures’ may vary according to facility guidelines, thus the procedures given below are for illustrative
purposes only:
Option 1 – Using Dispatch Disinfectant Spray
1. Lightly wet a disposable towel with Dispatch spray
2. Do not saturate the towel
3. Wipe the outer surfaces of the sensor
4. Next wipe the sensor with a dry disposable towel
5. Allow the sensor to air dry
6. Return the clean sensor to inventory or usage
7. Dispose of used towels per facility policies
Option 2 – Using Dispatch Disinfectant Towels
1. Open a new Dispatch pre-moistened towel
2. Wipe the outer surfaces of the sensor
3. Next wipe the sensor with a dry disposable
towel
4. Allow the sensor to air dry
5. Return the clean sensor to inventory or usage
6. Dispose of used towels per facility policies
Sensor Mounting Guidelines - Refrigerator Applications
The Elpas Internal Thermistor - Temperature Sensor (P/N: 5-STE00433-1) is
suitable for general purpose refrigerator applications (such as food and
pharmaceutical storage) where ambient temperature monitoring is sufficient.
Use an Elpas Mounting Clip (P/N: 5-ETC09001) with an ultra-high bound adhesive
to mount the temperature sensor on the side wall as close to the middle of the
refrigerator as possible. Avoid mounting the temperature sensor near or in the direct
air path of cold air intake since there will may be wide temperature swings at this
location. If the refrigerator is relatively empty consider adding bottles of water or other items to help stabilize the temperature
of the refrigerator.
The Elpas External Probe - Temperature Sensor (P/N: STC00433-1) is for refrigerator applications (such
as blood, vaccines and pathology storage) where it is necessary to immerse the probe in propylene glycol to
better match the thermal properties of the items being stored. Mount the probe and glycol bottle on the side
or back corner of the refrigerator where it will not be disturbed, while placing the sensor’s electronics either
inside or outside the refrigerator. Use tape or tie-wraps to secure the probe cable to the side wall or shelf.
Sensor Mounting - Freezer Applications
The Elpas External Probe - Temperature Sensor (P/N: STC00433-1) is also for
freezer applications below -20°C/4°F where placement is limited by the operating
limits of the sensor’s electronics and battery. The sensor’s remote probe enables
temperature measurements inside the freezer while its electronics and battery is
mounted externally on the outside of the freezer. The probe can be attached to a
shelf or other bracket using tie-wraps. Avoid the cold air intake and try not to mount
it on the top of the freezer as this area can become warm during defrost cycles, In
relatively empty freezers add bottles of frozen water or ice packs to help stabilize
the temperature of the freezer.

Elpas Temperature Sensors – User Guide
W.E.E.E. Product Recycling Declaration
For information regarding the recycling of this product you must contact the company from which you orignially purchased it.
If you are discarding this product and not returning it for repair then you must ensure that it is returned as identified by your supplier.
This product is not to be thrown away with everyday waste - Directive 2002/96/EC Waste Electrical and Electronic Equipment.
These devices (FCC #:04X5-RLE00125 and IC #:14 67G-RLE00125) complies
with FCC Rules Pa r t 15 and with ind ustry Canada license exempt R SS.
Operation is subject to the followi ng t wo condition s:
(1) This device may not cau se harmful interference, and
(2) This device must accept any interference receive d, or that may cause
undesired operati on.
For industr y Canada: Le pré sent appareil est confor me au x CNR d'Industrie
Canada applicables aux appareils radio e xempt s de licence. L'e xploitation
est autorisée aux deux condition s suivantes : (1) l'appareil ne d oit pas
produire de brouillage, et (2) l' utilisateur de l'appareil doit accepter tout
brouillage r adioélectrique subi, même si le brouillage est susceptible d'en
co mpromettre le fo nctionnement.
No te This e quipment has been tested and found to comply with the l i mits for
a Class B digital device, pursuant to part 15 of the FCC Rules. These limits
are designed to pro vide reasonable protection against harmful interface in a
residential instal l ation. Thi s equipment gen e r ates; uses and can radiate r adio
frequency energy and, if not installed and used in accordance with the
instructions, may cause har mful int erference t o radio co mmunicati on s.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications to this equipment not expressly approved by the party
responsible for compliance (Elpas Solutions Ltd.) could void the user’s authority to
operate the equipment.
Company Contact
Elpas, Inc.
Westford, Massachusetts (USA) - Tel: 1-800-223-0020
EU Declaration of Conformity
This equipment is in compliance with the essential requirements and other relevant
provisions of Directive 1999/5/EC.
Compliance Standards
Product Warranty
El pas So l ut ions Lt d . (ELP A S or the Co mpany), and it s affili ates, wa r rants its prod u cts (h e re i na ft er r ef e rr ed t o as " th e P rod uc t” ) t o be fr e e of def ec ts in m a t e ri al s an d
wo rkmanship under normal opera t ing conditio n s and u se f o r a pe riod of one year from the date of s h ipment by ELPAS. T he C omp an y’ s o b lig at io ns sh al l be li mi te d wi th in
th e warranty period, at its opti on, to repair or to replace t h e d e f e ctive Product or any defective component or part thereof. To exer c i se th is warra n ty, the p roduct must be
re turned to the manufacturer f r eight prepaid a n d insured.
Th is w a rranty does not apply to repairs o r rep lacement ca used by i mp roper installa t ion, Product misuse, failure to follow insta llation or operating instructio n s , alt eration,
ab u se, accident, tamperin g , repa i r by anyone other than ELPAS, external ca u ses, and fa ilure to pe rform required p reventive maintenance . This warra n ty als o do e s not
ap p ly to any prod u cts, accessor i e s, or attachme n t s used in con junction w i th the Product , including batt e r ies, which sh all be covered solel y by their own wa r ra n ties, if any.
EL P A S shall not be liable f o r a n y da m a ge or loss w hatsoever, whether directly, indirectly , incidentally, co n sequentially or o t he rwise, resulting from a ma lfunction of the
Pr oduct due to p roducts, acce s s ories, or a t tachments of o t h ers, includ ing batte ries, use d in conjunctio n with the Pro d u c t.
EL P A S MAKES NO EXPRES S W ARRANTIE S EXCEPT THOSE STA TED IN THIS ST A TE MENT. ELPAS DIS CLAIMS ALL OTHER WARR ANTIES, EXPRESS OR IMPLIED,
IN CLUDING WIT H OUT LIMITA T IO N IMPLIED WAR RANTIES OF MERCHANTABIL I T Y AND FIT NESS FOR A PARTICULAR PURPOSE. E L P AS’ S S O LE RE SP ONS IB ILITY
FO R W A RRANTY CLA IMS IS LIMIT E D TO REPAIR O R TO REPLACE AS SET FORTH IN THIS S TATEMENT.
EL P A S shall have n o li a bility f o r any d eath, personal injury, property damage, or o t he r loss w hether d irect, in d i rect, incident a l , c onsequentia l, o r otherwise, b a sed o n a
claim that th e Pro d uc t failed to funct io n. Ho wever, if ELPAS i s held liab le, wh ether directly o r indi r ectly, fo r an y lo ss or da mage arising under this li mited warranty or
ot h e rwise, regardl e s s o f cause or origin, E LPAS's maximum liability sh all b e limited to t h e p u rchase price of the P roduct, which shall be fixed as liquida t e d damages and
no t as a penalt y, and shall b e the complete a n d exclusive liabilit y of ELPAS.
EL P A S shall not, under any c i rcumstances whatso e ve r, b e liable f o r any inaccuracy, error o f judgment, default, or neglige n ce of ELPAS, its employee s , off icers, agents,
or any o t h er p a rty, o r of the p u rchaser or u ser, a rising f rom a ny assistan c e or communicat ion of any kind regarding th e configuratio n , design, installat ion, or creation of
se curity sy stem in v olving th e Product, th at being the respo n s i bility of the purch a se r or use r. f ELPAS is unable to make such repai r or repla c e ment, ELPAS’ s en ti re
liab ility shall be limited to the cost of a reasonable substitute product. E LPAS shall not be responsible for any dismantlin g , in stallation, reins t a llation, purchasin g ,
sh ipping, insu rance, o r any simi la r charges.
EL P A S shall h a ve no liability f o r any damages, including without limi t a tion, a ny direct, in d irect, incidental, sp e c ial, or consequen t ia l damages, expenses, c osts, p rofits,
lo st savings o r ea r nings, o r oth e r da m a ges arising out of the use of the Product o r the re moval, i n s tallation, reinstallat ion , rep a i r or re p l acement o f th e Pr o d u ct or any
re lated e v ents. In the event t hat there is a n y liability against ELP A S , such liability sh a ll b e li m i ted to the purchase price of the Pro duct which a mount s h all be fi xed as
liqu idated dama g es.
Th e purchase r and us e r understand th at this P roduct may b e compromise d o r circumven t e d by intent ional acts; t h a t the Prod u c t will not in all cases p r e v ent de at h ,
pe rsonal injury, property damage, or other loss resultin g from burglary, robbery, fire or other causes; and that the Product wi l l n o t i n all cases provide adequate warning
or protection. The purchaser and user a l so understand th a t a pr ope rly installed a nd maintaine d al a rm may reduce t h e risk of e v e n ts such a s bu rglary, robbery, a nd fire
without warning, but it is not insurance o r a guarantee that such events will not occur or t h a t t h ere w i ll be n o d e a th, p ersonal injury, property damage, or ot her loss a s a
re sult of such e vents.
By purchasing the P roduct, the p u r c ha ser a n d user shall defend, indemnify and h o ld ELPAS , its officers, dire c to rs, affiliate s , subsidiaries, ag e nts, servants, emp loyees,
an d auth o rized representa t i ves ha rmless from and against any and all cla ims, suits, costs, d a mages, and judgments i ncurred, c laimed, or su stained whether f o r de a t h,
pe rsonal injury, p roperty d amage, o r otherwise, be cause o f or in a n y way r e la t ed to t h e configurati on, d e s ign, installatio n , or creation of a securit y system involving the
Pr oduct, and the use, sale, distributi on, a n d installa t ion of the Product, including paymen t of a n y a n d all at to rne y’ s fe e s, c os t s , an d ex pe ns es i nc u rr ed a s a re sul t of a ny
su ch events.
Th e purchaser or u se r should f ollow th e Product installat ion and operation in s t ructions and t e s t the P r oduct a nd the entire s ystem at least o n ce each week. For various
re asons, including b u t n o t limited to changes in e n v ironmenta l conditio n s, electric, ele c t ronic, or electr o m agnetic disrupti o ns, and ta mpering, the Product may not perform
as expected. T he purchaser a n d user are advis ed to take all necessary pre c a u tions for th e prot ection and sa f e t y of person s and property .
Th is s tatement provid e s certain legal rights. Other rights may vary by state or country. Under certain circumst a nces, s ome st ate s or countries may not a l low e xclusion or
li mitation of i nc idental or consequential d amages o r i m p lied w a r ranties, so t he above exclusio n s may not apply under those circumstanc e s and i n those states or
co u ntries.
EL P A S reserves the right to modify this stateme nt at any time, i n its sole dis c r e tion withou t notice to any p u r chaser or use r. H owe ver, this statement shall not be modif ied
or va ried except by ELPAS in writing, and ELPAS does not authorize any si ng le in d ividual to act on its behalf to modify or vary this statement.
An y questions a b out this state ment sh o uld be di r ected to ELPAS. 3 / 0