Electronic service and manufacture is what Elsema has stood for since 1973, the year the company was founded. The brand has always been on the side of groundbreaking tech as well as bringing remote control over to devices that didn't have it before.
As a privately owned Aussie brand, Elsema has to thank its co-founder Otto Eigner for its success in all departments. This includes the development, manufacturing and sales of the products it offers today. With over 40 employees nowadays, the company is still going strong, especially with its 433MHz series receivers.
Elsema Receivers
GLR43301
The GLR43301 is a Gigalink receiver that comes with a relay output capable of switching to currents up to 8 amps. The device is crystal controlled which makes it highly reliable and it comes with a highly sensitive receiver input stage. This single-channel Elsema receiver has a built-in test switch to activate the relay. The input voltage ranges between 11 V and 28 V and it's usable with both a DC and AC power supply.
With 96 x 70 x 20 mm dimensions, the GLR43301 offers user-selectable output modes and its current consumption is 16 mA on standby. You also get over 4 billion code combinations and the ability to store an unlimited number of transmitters. The GLR43301 comes with an optional QM100 bracket that makes it easy to install to a case or wall.
GLR43301240
You can connect the GLR43301240 directly to 240V AC mains power with it having the same sensitive input stage as well as the ability to store an unlimited number of transmitters. What's different with the GLR43301240 is the fact that it has a current consumption of 2.2mA on standby. It has a sensitivity better than 1µV while it also comes available as an E version.
This means it can be stored in a weatherproof case which makes it even more durable than the GLR43301. Of course, because of this, the GLR43301240 is quite large since it comes in at 130 x 70 x 37 mm. The user selectable modes are also here but also the ability to use this receiver with every GLT433 series Elsema transmitter. When it comes to crane control, wireless cement truck operation and winches, the GLR43301240 is a great option.
GLR43302
Moving away from single-channel receivers, we have the GLR43302 which is an Elsema receiver with two channels. But despite that being the case, the GLR43302 is smaller than the GLR43301240 coming in at 96 x 70 x 20 mm. It has the same sensitivity as well as supply voltage and the number of code combinations and transmitters it can store.
The GLR43302 is also able to work with any GLT433 series Elsema transmitter. The current consumption of the GLR43302 is 16mA on standby with the same latching, security latching and momentary user selectable modes being available here too. The microcontroller is also 32-bit encrypted which means it's quite secure.
GLR43302240
This is also a two-channel Gigalink receiver that operates on the same relay output voltage and amps as the rest of the receivers mentioned above. The GLR43302240 has a 2.2mA current consumption on standby and it comes in at 130 x 70 x 37 mm just like the GLR43301240. It operates on 240 V AC mains power and it is also available as an E version and with the optional QM100 mounting bracket.
GLR43304
If you want to get a receiver from the Aussie brand with about the same dimensions as the GLR43302240 but with a higher number of channels you should get the GLR43304. This receiver has four channels with relay outputs rated at 8 amps, 240 V AC. The current consumption of the GLR43304 is higher though coming in at 16mA at standby. Everything else from the user-selectable modes to the code combinations and the ability to store an unlimited number of transmitters is all the same. The antenna of the GLR43304 is the same ANT 433MHz as with the rest of the receivers on here.
GLR43304240
The GLR43304240 is just a larger more heavy-duty version of the GLR43304. That's because it comes with a weatherproof case which makes it usable in industrial automation applications. The GLR43304240 has the same relay output ratings, relay output modes, sensitivity and compatibility with Elsema transmitters as every other receiver on this list. The only difference from its smaller brother, the GLR43304, is that the GLR43304240 has a lower current consumption of 2.2mA on standby.
Final Words
Elsema being a long-running manufacturer of receivers and transmitters proves that the company has quality products to offer that last a long time. The above-mentioned devices sure prove that on paper but they also do out in the real world where conditions are not as ideal. This Aussie brand is a go-to option if you like tried-and-true remote control devices.
