Ultimate BoatingGarmin PS21-TM

Ultimate Boating aggregates and compares public technical data (manufacturer brochures and spec sheets) to help boaters objectively compare engines, propellers, systems and boats.

Independent: no display ads, no sponsored content, no paid rankings.

Privacy-first: self-hosted, cookieless visitor analytics (Matomo), no third-party trackers, no cookie banner.

The site is funded by affiliate commissions (Amazon, Click&Boat): this does not affect prices or comparisons.

Published by RDI (Sébastien Sauteraud), Romans-sur-Isère (France).

Powered by rdiconnect.tech

Contact us

Garmin

Garmin PS21-TM: specifications

Garmin PS21-TM, from the transducers & probes family.

Sources and technical context

The essentials: this model against its direct rivals

Where it stays behind

  • Power (W)144rival: 300
  • Max depth (m)300rival: 750
  • CHIRPnopresent on 1 rival

Technical specifications

Référence010-01588-01
Frequency417 kHz
Power (W)144
Beam angle90° x 20°
Max depth (m)300
Mounting typeTableau arrière
CapteursProfondeur / Température
ConnecteurEthernet
Longueur de câble (m)13
Deadrise0-70° tableau arrière
Technologie sonarPanoptix (LiveVü Forward, FrontVü)
CHIRPNo

Head to head with its direct rivals

Side-by-side figures for the PS21-TM against Airmar B150M with 0° Tilt, within the Transducers & probes family.

CharacteristicGarmin PS21-TMAirmar B150M with 0° Tilt
Power (W)144300
Max depth (m)300750
CHIRPnoyes
Mounting typeTableau arrièreTraversant de coque
Frequency417 kHzCHIRP 95-155 kHz
Beam angle90° x 20°26/17

Open the Transducers & probes comparator → · How we compare →

Other Garmin systems

Same family, all brands