Jablotron JA-151ST-A-AN wireless Smoke and Heat detector

Jablotron JA-151ST-A-AN anthracite wireless smoke and heat detector indicates a fire hazard using the built-in LED indicator and acoustic signalling.

It can sound the burglar alarm from the system but also be linked to any other fire detector section in the system.

Availability: In stock
SKU
JA-151ST-A-AN
Do you have a question about this product?
Frank

JA-151ST-A-AN anthracite combined smoke and heat detector

The JA-151ST consists of two independent detectors – an optical smoke detector and a heat detector. The optical smoke detector works on the principle of scattered light. It is very sensitive to large dust particles which are present in dense smoke. It is less sensitive to smaller particles generated by the combustion of liquids such as alcohol. That is why the fire detector also contains a built-in heat detector which has a slower reaction but is much better at detecting fire which generates only a small amount of smoke.

The detector communicates wirelessly and it is supplied by batteries (3x 1.5 V AA).

If the detector is operated without being assigned to a control panel or if communication with the control panel has been lost, it works in an autonomous mode (EN 14604).

The detector indicates a dangerous situation optically with an integrated light and a siren. It is able to acoustically report:

  • a fire alarm detected by the detector itself
  • a fire alarm from the system (alarm triggered by another fire detector)
  • another type of alarm (e.g. an intruder alarm)
  • for alarms reported by the system, sections can be set for which the alarm will be indicated

The product contains two separate detectors – an optical smoke detector and a temperature detector. The optical smoke detector uses the diffused light principle. It is very sensitive to particles that are present in thick smoke. It is less sensitive to small particles produced by the burning of liquids such as e.g. alcohol. Therefore, a heat detector is integrated, which responds better to a fire developing heat quickly with a small amount of smoke.

The fire detectors should be installed by a trained installer with a valid Jablotron certificate. The detector is not designed for installation in industrial environments.


Technical specifications JA-151ST-A-AN

Power 3x alkaline batteries AA 1.5 V / 2.4 Ah
3x lithium batteries FR6 (AA) 1.5 V / 3.0 Ah
Please note: Batteries are not included
Typical lifetime approx. 3 years
Smoke detection optical light scattering
Smoke detector sensitivity m = 0.11 - 0.13 dB/m
pursuant to EN 14604:2005, EN 54-7
Heat detection class A1 according to EN 54-5
Alarm temperature + 60 °C to +65 °C
Communication band 868.1 MHz, Jablotron protocol
Communication range approx. 300 m (unrestricted area)
Dimensions diameter 126 mm, height 50 mm
Weight 150 g
Operating temperature range -10 °C to +65 °C
Also complies with EN 54-25, ETSI EN 300 220, EN 60950-1, EN 50130-4 and EN 55022.
Can be operated according to ERC REC 70-03

Customer Reviews

Blog Posts (1)

Questions

After how many years do I have to replace an old fire detector with a new one?
Question by: Wolfgang on Jun 7, 2025, 1:22 PM
A fire detector (smoke / heat detector) should generally be replaced every 10 years. This is the standard service life of most smoke detectors, including those from Jablotron, Notifier and DSC.

Why replace after 10 years?
> Sensor ageing: The smoke detector loses its sensitivity over time.
> Battery wear: Even models with long-life batteries can run out after 10 years.
> Reliability: After 10 years, the risk of faults increases and security systems must always be reliable.

Regards
Answer by: Frank Ligthart (Admin) on Jun 7, 2025, 1:26 PM
How can I tell if my smoke detector is dirty?
Regards
Question by: Frank on Jun 1, 2026, 3:03 PM
To test the detector, press the detector body against the base and wait until an LED light illuminates. The LED flashing signals the switch to test mode. The LED flashes for the entire duration of the test. When the test is complete, turn off the LED. The detector then signals the result.
If the alarm beeps once, the test has been successfully completed. If an error is detected, the LED flashes and beeps three times. In this case, repeat the test, and if you get the same result, the detector must be sent to the service center. If the battery is low, there is no acoustic signaling, but only a single flash when the test is completed.

ST-A Models:
During testing, all measured information such as temperature, smoke, and dirt in the detection chamber is updated. The measured values ​​can be viewed using F-Link software in the Diagnostics tab. Hover the cursor over the Voltage/Loss option, and a tooltip will appear showing the current status of all measured information.

Kind regards
Answer by: Frank Ligthart (Admin) on Jun 1, 2026, 3:09 PM