A dial timer you program at the wall, with short detection and a three-year trade warranty; it becomes a smart controller only with Rain Bird's LNK2 Wi-Fi module, sold separately.
Updated
- 8 Zones
- 3 years Warranty
- Plug-in transformer Power
- Indoor or outdoor Mounting
Pros
- Full dial programming: 3 programs with 4 start times each
- Short detect skips a faulty station and shows a message
- Accessory port takes Rain Bird's LNK2 Wi-Fi module, sold separately
- Indoor/outdoor case with a factory-fitted 6-ft cord
- Three-year trade warranty, claimed through the seller
Cons
- No Wi-Fi or weather adjustment without the separate LNK2 module
- One valve solenoid per station terminal
- The LNK2 module needs 2.4 GHz Wi-Fi
- WaterSense only with the LNK2 module and a Rain Bird rain sensor
- Best for
- Owners who want a dependable timer they can program at the wall, now or as a replacement for an older Rain Bird, with the option of app control later.
- Not for
- Buyers who want smart scheduling out of the box; the module adds noticeably to the cost.
Our verdict
The ESP-TM2 is Rain Bird’s fixed-station timer, sold in 4, 6, 8 and 12 station versions, and out of the box it is not a smart controller. You program it at the wall with a dial and buttons: three programs of four start times each, run times from 1 minute to 6 hours, watering by weekday, odd or even dates or every 1 to 30 days, Seasonal Adjust from 5 to 200 percent and a watering delay of up to 14 days.
Wi-Fi, app control and daily weather adjustment come only from Rain Bird’s LNK2 module, sold separately, which plugs into the accessory port and needs a 2.4 GHz network. Rain Bird says the TM2 meets EPA WaterSense criteria only with that module and a Rain Bird rain sensor fitted. Short detection skips a station with a wiring fault and keeps the rest running, programs sit in non-volatile memory, and a lithium cell rated for about 10 years keeps the clock. Rain Bird markets it with a three-year trade warranty, which you claim through the seller.
Compare it with app-first models in our sprinkler controller comparison and our picks of the best smart sprinkler controllers.
Wiring and setup
The TM2 hangs on one screw left 1/8 in proud of the wall, with a second screw inside the wiring bay, and comes with a factory-fitted 6-ft cord; the IP24 cabinet suits indoor or outdoor walls. Each valve goes on its own numbered terminal with the field common on C, one solenoid per station. A master valve or pump start relay wires to M, Rain Bird lists only its PSR110IC and PSR220IC relays as compatible, and unused stations should be jumpered to a used one to protect a pump. Rain sensors must be normally closed, and the yellow SENS jumper comes off only when one is fitted.
Safety: the cord can be replaced with fixed wiring, but Rain Bird says wiring must follow local building codes and some codes require a licensed electrician to connect power. Keep valve wires apart from lighting and mains wiring.
Adding Wi-Fi later
The LNK2 module fits ESP-TM2 units made after November 2, 2016 that carry the LNK Ready mark, so check an older TM2 before buying one. Its light shows the connection: flashing green means it has reached Wi-Fi and Rain Bird’s server, double green flashes mean Wi-Fi works but the server can’t be reached, and flashing red means setup timed out. In Canada, Irrigation Direct lists the 8-station TM2 with the Wi-Fi module as an extra-cost option.
What owners report
Owners we read, mostly on Rain Bird’s store (with coupon-written reviews left out) plus a few on the Home Assistant forum, mainly bought the TM2 to replace old controllers. They describe quick installs, one in about 15 minutes, a display they find easy to read and program, and patient help from Rain Bird’s phone support. The complaints are about the Wi-Fi side: one owner notes the module works only on 2.4 GHz, and Home Assistant users say Rain Bird’s 2.0 app update broke their link and that the app feels slow because every change goes through Rain Bird’s servers.
Rain Bird ESP-TM2 8-Station Controller specs
- 8 Zones
- 3 years Warranty
- Plug-in transformer Power
Control
| Zones | 8 |
|---|---|
| Zones with expansion | not listed |
| Wi-Fi app | No |
| Weather-based scheduling | No |
| Controls on the unit | Yes |
| Rain or soil sensor input | Yes |
| Flow sensor support | not listed |
| Master valve or pump start | Yes |
| Bluetooth app | not listed |
Install
| EPA WaterSense labeled | not listed |
|---|---|
| Mounting | Indoor or outdoor |
| Power | Plug-in transformer |
Support
| Warranty | 3 years |
|---|
Manufacturer figures, checked 2 Nov 2026. — means not listed.
Where to buy the Rain Bird ESP-TM2 8-Station Controller
- Rain Bird Store$197.99Go to Rain Bird Store (opens in a new tab)
- DripWorks$159.65Go to DripWorks (opens in a new tab)
- Sprinkler Warehouse$140.15Go to Sprinkler Warehouse (opens in a new tab)
Prices and stock change; the retailer’s page is always the final word.
- Irrigation Direct CanadaCA$305Go to Irrigation Direct Canada (opens in a new tab)
Prices and stock change; the retailer’s page is always the final word.
Rain Bird ESP-TM2 8-Station Controller questions
Can I add Wi-Fi to the ESP-TM2 later?
Yes, with Rain Bird’s LNK2 Wi-Fi module, which is sold separately. It plugs into the 5-pin accessory port of any ESP-TM2 made after November 2, 2016 with the LNK Ready mark, needs a 2.4 GHz network, and adds app control and a daily weather-based adjustment. Without it, the TM2 is a standard dial timer with no app.
Is the ESP-TM2 WaterSense certified?
Only as a set. Rain Bird says the ESP-TM2 meets EPA WaterSense criteria when it is fitted with the LNK2 Wi-Fi module and a Rain Bird rain sensor; on its own it is a standard timer. If you are counting on a utility rebate, check the exact combination on the EPA’s WaterSense product list and with your utility before you buy.
What does a short message on the display mean?
A shorted valve solenoid or master valve wire. The controller skips that station and keeps running the others, so the rest of the yard still gets watered. Fix the wiring or replace the solenoid, then test the station or press a button to clear the message. If nothing waters at all, check the water supply, a rain sensor and the SENS jumper.
How do I set the ESP-TM2 for winter?
Turn the dial to OFF. That stops all automatic watering while the programs stay in memory, ready for spring. Drain or blow out the pipes first, as our winterizing guide explains; for a compressed-air blowout, Rain Bird recommends a local irrigation specialist.