Telematics and Connected Mobility conference 
September 10–11, 2025 / Vilnius, Lithuania
September 10–11, 2025 / Vilnius, Lithuania
Protocol used by sensors manufactured by Tekelek headquartered in Ireland.
flespi parses the Tekelek protocol messages into a JSON object with the
fields listed below in the Parameters tab.
This protocol is used by all Tekelek sensors.
To connect your tracker using the Tekelek protocol, you need to have a tekelek channel created first.
Point your tracker to the channel's domain name:port via SMS or configuration tool provided by the vendor.
Then create a device instance for your tracker and use a 15-character IMEI (usually specified on the tracker casing) in the ident field.
Use the Toolbox tab on the device screen to check if the messages are coming.
accelerometer.orientation
number
degrees
Accelerometer orientation
battery.level
number
percentage
Internal battery level
battery.voltage
number
volts
Internal battery voltage
bor.reset.status
boolean
Brown-out reset status
bund.closed.status
boolean
Bund switch closed
bund.status
boolean
Bund status
channel.id
number
ID of channel that received a message
device.id
number
ID of device that received a message
device.name
string
Name of device that received a message
device.type.id
number
ID of device type of device that received a message
energy.consumed
number
mA/s
Count of energy used from the previous upload
event.enum
number
Protocol-specific event code
event.seqnum
number
Unique event sequence number
go.active.status
boolean
GO Active status
gprs.status
boolean
GPRS mobile network status
gsm.error.code
number
Last Mobile network error code
gsm.network.roaming.status
boolean
Mobile network (GSM, 3G, 4G, LTE, 5G, ...) in roaming mode
gsm.rat
string
Radio access technology
gsm.sim.iccid
string
Integrated Circuit Card Id of SIM card of the Mobile network (GSM, 3G, 4G, LTE, 5G, ...)
gsm.sim.imsi
string
IMSI of SIM card of the Mobile network (GSM, 3G, 4G, LTE, 5G, ...)
ident
string
Device unique identifier like serial number, IMEI, etc
limit.alarm.status
boolean
Alarm of limit violation
liquid.level
number
cm
Level of liquid in tank
modem.firmware.version
string
Firmware version of the modem
network.signal.rssi
number
dbm
Network signal strength
peer
string
IP:port from which device connecting to the channel
position.latitude
number
degrees
Latitude coordinate value
position.longitude
number
degrees
Longitude coordinate value
product.model.enum
number
Product model
protocol.id
number
ID of protocol
radar.firmware.version
string
Radar FW version
radar.status
number
Radar status flags bitmask
report.reason
number
Transmission reason code
rtc.failure.status
boolean
Real-time clock limp along status
send.attempts
number
Count of how many attempts it took to send the message
sensor.temperature
number
celsius
Temperature sensor value
server.timestamp
number
seconds
Timestamp when server received a message
sleep.mode.status
boolean
Device is in sleep mode
sonic.result.code
number
Sonic result code
sonic.rssi
number
Sonic signal strength
timestamp
number
seconds
Message timestamp
wdt.reset.status
boolean
Watchdog timer reset status
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