Reach M2 Multi-Band RTK / PPK GNSS Module [SL4]This is a single Reach M2 module that gives you centimetre accuracy RTK or PPK mapping operations. The Reach M2 gives you some advantages over the previous generation Reach M+. To start you now get a multi band receiver, that can give you baseline of up to 100 km in PPK. (M+ could only to 20km). Other improvements include more rnage in RTK (60km) and a faster time to fix (around 5 seconds). This system is designed to be used with the Reach RS2 base