Lemon RX LM0051U 7-Ch DSMP Full-Range Telemetry Receiver (Energy Meter Optional)

Lemon RX


In Stock

Sale price $32.99 Regular price $39.99

LM0051U is a cost down version of LM0051 for those who don't require energy meter at the moment. This receiver comes with pre-calibrated battery voltage probe, temperature, RSSI and just about every major telemetry parameter in one tiny package. LM0051U is the world smallest, true full-range telemetry system with build-in sensors along with diversity receiver shrinked in the smallest possible package.

*Optional current sensor will need to be purchased under accessories page and perform one time calibration by user to activate energy meter (mAh, current measurement).


  • - Energy meter is now an optional item as a cost down version of LM0051
  • - Function and performance are identicial to LM0052 except with the absent of barometric sensor (altitude and vario information is not available on LM0051)
  • - True full-range diversity telemetry provides plane information in real-time as far as you can fly your plane with any DSMX or DSM2 compatible transmitter
  • - Energy metering system (mAh, V, Current) are included with the provided V/I sensing unit
  • - 2-stage failsafe best suited for gasoline / electric application (Selectable failsafe for pre-defined position as throttle only or all channel failafe in the event of signal absence)
  • - Diveristy extended antenna receiver with state-of-the-art RF circuit providing umatched performance of reception
  • - Real time RSSI output as analog voltage / displayed on transmitter A parameter
  • - Glider may use the inlcuded wiring for battery voltage sensing only if energy  metering system is not required for absolute weight reduction
  • - Optional diversity satellite maybe used to provide total of 4 receiving antennas

LM0051 telemetry range comparison with Spektrum and Orange 

The outstanding telemetry range of LM0051 are tested with Spektrum and Orange telemetry capable receiver as a basic performance benchmark. Please note that for fairness of this testing as the other receiver may not contain diveristy antenna unlike the LM0051, the setup is performed such that diveristy will have no advantage of any range improvement during this test.

Telemetry reporting

Below listed telemetry reporting are available with the purchased package. No additional purchase is required.

  • - Included sensors / interface: Pre-calibrated battery voltage probe, Receiver voltage, Temeprature (Internal automatically selected when the inlcuded external temperature probe is not used), RSSI out (3V to 0V) and displayed on transmitter A parameter
  • - Optional energy meter can be purcahsed under accessories page which require one time user calibration (mAh consumed, Current)

Telemetry receivers' feature

Comparison of Lemon Rx full-range telemetry capable diversity receiver.

- For (*1) V/I sensor may be required to purchase seperately on LM0051U, LM0052U and LM0041 if mAh consumed / current measurment is required

- Please note the input voltage at V/I sensor is 7.8V to 22V( or 2S to 5S LiPo). Using voltage probe without V/I sensor will accept up to 35V of input voltage at voltage probe pin. Re-calibration maybe required switching between voltage probe or V/I sensor and vice versa. V/I sensor maybe an optional item depending on the package selected.

RCGroups discussion (Click below link for user manual page with link to RCGroups)

Quick start-up guide / tips

V/I sensor calibration

  • - Pre-calibrated voltage probe is included. Optional energy meter can be purchased separately under accessories with one time user calibration.

Step for setting failsafe

Fail-safe activates when the receiver no longer receivers signal (Eg. Transmitter is off / signal loss). There are 3 possible setting which are:

  •     - No signal output to servo
  •     - Output predefined throttle signal only
  •     - Output predefined signal for all channels

1) Insert bind plug

2) Provide power to the unit and bind the unit but do not remove bind plug

3) Set your transmitter to the preferred position as failsafe default output and hold it to this position.

4) press the button briefly will cause the green light to be in the following status. Press the button while maintain your preferred position of the channel:

     - Green LED status - none: No pulse to servo with the absence of correct reception

     - Green LED status - flashing: Throttle-only preset. Throttle position had been acquired as failsafe default output

     - Green LED status - solid: All-channel preset. All channels' position had been acquired as failsafe default ouptut

5) Remove bind plug

6) Turn off the transmitter now while power is still provided to receiver. You can now observe the failsafe status when no transmitter signal is present to the receiver. Please be careful that your propeller may turns if you set throttle channel above 0% in the event of signal losses. Failsafe can be useful as a last resource to save plane for unexpected situation when the receiver is no longer receiving signal from transmitter such as interference problem.



Lemon Rx DSMP (DSMX compatible) 7-Channel Full-Range Telemetry with diversity receiver (Energy Meter Optional)

Number of Channel:



DSMP (DSMX and DSM2 compatible)


2.4 GHz


44(L) x 24(W) x 15(H)  mm



Voltage Range:

4.5 - 8.5V



1) This is not a Spektrum DSMX or DSM2 product, nor is it a copy of a Spektrum DSM2 or DSMX product. The Spektrum, TM1000, AR9020, DSMX and DSM2 brand is a trademark of Horizon Hobby, Inc.
2) This is not an underground black market fake Spektrum product. Lemon Rx quality is guaranteed.
3) Lemon Rx products are tested to be compatible with Spektrum's DSMX and or DSM2 product (Spketrum, DSMX and DSM2 are the registered trademark of Horizon Hobby, Inc.).
4) The Hobby King, R1020X V2 brand are the trademark of Hextronik Limited.